Book Reviews – Page 10 – Education & Teacher Conferences Skip to main content
“How You Got to Be So Smart”: The Evolution of our Brains
Andrew Watson
Andrew Watson

When did learning first begin?

For me, individually, you might say it began when I first attended preschool. But, truthfully, learning began well before then.

I learned how to walk and speak, and to do (a very few of) the things my parents told me to do.

In the womb, I even learned to recognize sounds – like my mother’s voice.

But, let’s go much further back.

When did our species start learning? Or, before then, great apes? Or, even earlier, mammals?

Did dinosaurs learn?

How about those little one-celled organisms that developed when life began, over 3.5 billion years ago? Did they do anything we could meaningfully call “learning”?

Paul Howard-Jones answers that question with a resounding yes. And, most intriguingly, the biological mechanisms that allowed them to learn still help us to do so…all these billions of years later.

As Howard-Jones writes, learning “changes not just our mental world but also our biological form.” The basic biological and chemical mechanisms necessary for the earliest kinds of learning still help us learn today.

The Story Begins

Let’s start with E. coli. This single cellular organism has a bad rep, but we’ve got lots of very useful E. coli in our guts. And, they can – in a manner of speaking – learn.

In order to eat, E. coli have to move. And, they have two options for movement. If they’re successfully getting nutrition as they move, they want to keep going straight. If they’re not, they want to move randomly about – until they stumble into a better path to follow. Once they do, they start going straight again.

To accomplish this goal, E coli need to “remember” how much nutrition they were getting a few seconds ago, and compare that level to the current intake. Remembering, of course, is a kind of learning.

Howard-Jones helpfully describes the cellular mechanism that allows this memory comparison to happen. It’s a little complicated: think “methyl groups” and “receptors.” But, this clever and efficient system allows cells to remember, and thereby to eat and flourish. (Check out pages 24-5 for a full version of this story.)

Learning gets even cooler from there.

As evolution brought single-cellular organisms together into eukaryotes – from which sprang reptiles and amphibians and mammals and you – it produced ever-more-intricate systems for learning.

For instance, neurons evolved to ensure that multi-cellular organisms could coordinate their movements. (If each cell did its own thing, then we’d get no benefits from having all those cells.)

And, of course, neurons now form the biological basis of learning that happens in our brains.

Vertebrates and Primates

As evolution led to the development of more-and-more complex organisms, so too it produced increasingly complex kinds of learning: the ability to organize information by association, for example, or to recall something that happened yesterday.

The Evolution of the Learning Brain, devotes considerable time to primate development. In particular, it asks this question: since most evolutionary developments favor specialization, why did our species prove so successful? After all, our brains allow for great cognitive flexibility – the ability to be generalists, not specialists.

Howard-Jones answers this question by looking at the extraordinary climatic and geological upheaval at the time of our evolution.

Primates developed cognitive complexity – probably – in order to keep track of larger and larger social networks.

For instance, female vervet monkeys recognize their own offsprings’ cries. When they hear their children cry, unsurprisingly, they look at the child. When they hear someone else’s child cry, amazingly, they look at that child’s mother.

The story gets even more complicated when we look at chimpanzee dominance networks.

At the same time, later primates developed basic “theory of mind”: the ability to think about what others are thinking.

In one astonishing study, chimpanzees preferred to steal back food when researchers weren’t present – or when the container from which they stole the food was opaque. That is, chimps can think about what others can see, and behave accordingly.

All this complexity – social intelligence, theory of mind – proved especially important during the opening of the Great Rift in Africa: geological changes that led to rapidly changing climate and terrain. In this unusual set of circumstances, a species (like, say, Homo sapiens) with extra cognitive complexity was in a better position to manage upheavals.

As Howard-Jones writes:

The unique geology of the Rift Valley …is thought to have produced extreme climate variability with cycles lasting 400,000 or 800,000 years. […]

This inconsistent environment provided a novel genetic testing ground in which different hominin species were pursuing different approaches to survival, including generalizing vs. specializing. […]

Rather than evolving to fit one change, [Homo sapiens] evolved greater ability to respond to change itself.

Wow.

Classroom Implications

How should this understanding of evolution and learning shape our classroom practice?

Howard-Jones remains helpfully modest in answering this question. As he writes:

Evolution cannot tell us how to teach and learn, but it can help us frame and understand this research.

In his closing chapters, therefore, Howard-Jones encourages us to think about teaching with this perspective.

He suggests several insights about a) engagement, b) building of knowledge, and c) consolidation of learning that have evolutionary and neuro-biological grounding.

For instance: engagement. How can we help students pay attention?

Teachers have long known that novelty helps students focus. (Evolution helps explain why. Anything new could be a threat. Or, it could be food!)

Howard-Jones points out that shared attention is itself motivating:

Our strong motivation to share attention is a uniquely human characteristic that may have played a key role in our ancient cultural accumulation of knowledge, as it does today. When self-initiated, this capturing of shared attention also leads to reward-related brain activation.

In other words: schooling works because we invite our students to look with us, and to look with each other.

Another practical application: embodied cognition. Howard-Jones details several studies where a particular kind of movement helps students learn particular content.

He also explains why numbers and reading – more cultural practices than evolved cognitive capabilities – prove an enduring challenge to our students.

In Sum

Howard-Jones brings together many disciplines and a few billion years of history to tell this story.

Some readers might wish for more immediate, concrete teaching strategies. Some specialists, no doubt, disagree with his interpretation of the evidence.

I recommend this book so highly not because it tells us to do particular things, but because it helps us think in new and fresh ways about the work we have to do.

If we understand the evolutionary and neuro-biological sources of our difficulties and our enormous potential, we can think more realistically about avenues of success in schools.

In the words of Howard-Jones’s subtitle, we’ll understand how we got to be so smart. We might even understand how to get smarter still.

The Best Teaching Book to Read This Summer: Powerful Teaching
Andrew Watson
Andrew Watson

Let’s describe a perfect book for a Learning and the Brain conference goer:

First: it should begin with solid science. Teachers don’t want advice based on hunches or upbeat guesswork. We’d like real research.

Second: it should include lots of classroom specifics. While research advice can offer us general guidance, we’d like some suggestions on adapting it to our classroom particulars.

Third: it should welcome teachers as equal players in this field. While lots of people tell teachers to “do what research tells us to do” – that is, to stop trusting our instincts – we’d like a book that values us for our experience. And, yes, for our instincts.

And, while I’m making this list of hopes for an impossibly perfect book, I’ll add one more.

Fourth: it should be conspicuously well-written. We’d like a lively writing voice: one that gets the science right, but sounds more like a conversation than a lecture.

Clearly, such a book can’t exist.

Except that it does. And: you can get it soon.

Memory researcher Pooja Agarwal and teacher Patrice Bain have written Powerful Teaching: Unleash the Science of Learning. Let’s see how their book stacks up against our (impossible) criteria:

First: Begins with Research

If you attend Learning and the Brain conferences, you prioritize brain research.

We’re not here for the fads. We’re here for the best ideas that can be supported by psychology and neuroscience.

Happily, Powerful Teaching draws its classroom guidance from extensive research.

Citing dozens of studies done over multiple decades, Agarwal and Bain champion four teaching strategies: retrieval practice, spacing, interleaving, and metacognition.

(As frequent blog readers, you’ve read lots about these topics.)

Agarwal herself did much of the research cited here. In fact, (researcher) Agarwal did much of the on-the-ground research in (teacher) Bain’s classrooms.

And Agarwal studied and worked with many of the best-know memory researchers in the field: “Roddy” Roediger, Mark McDaniel, and Kathleen McDermott, among others.

(BTW: McDaniel will be speaking at the LatB conference this fall in Boston.)

In short: if you read a recommendation in Powerful Teaching, you can be confident that LOTS of quality research supports that conclusion.

Second: Offers Classroom Specifics

Powerful Teaching is written by two teachers. Bain taught 6-8 grade for decades. And Agarwal is currently a psychology professor.

For this reason, their book BOTH offers research-based teaching advice AND gives dozens of specific classroom examples.

What does retrieval practice look like in the classroom? No worries: they’ve got you covered.

This strength merits particular attention, because it helps solve a common problem in our field.

Teachers often hear researchers say, “I studied this technique, and got a good result.” We infer that we should try that same technique.

But, most research takes place in college classrooms. And, the technique that works with that age group just might not work with our students.

How should we translate these research principles to our classrooms? Over and over again — with specific, practical, and imaginative examples — Bain and Agarwal show us how.

Third: Welcomes Teachers

Increasingly in recent months, I’ve seen scholars argue that teacherly instincts should not be trusted. We should just do what research tells us to do.

As I’ve written elsewhere, I think this argument does lots of damage—because we HAVE to use our instincts.

How exactly do research-based principles of instruction work in thousands of different classrooms? Teachers have to adapt those principles, and we’ll need our experience —and our instincts—to do so.

Powerful Teaching makes exactly this point. As Bain and Agarwal write:

You can use Power Tools your way, in your classroom. From preschool through medical school, and biology to sign language, these strategies increase learning for diverse students, grade levels, and subject areas. There are multiple ways to use these strategies to boost students’ learning, making them flexible in your classroom, not just any classroom.

Or, more succinctly:

The better you understand the research behind the strategies, the more effectively you can adapt them in your classroom – and you know your classroom best.

By including so many teachers’ experiences and suggestions, Agarwal and Bain put teacherly insight at the center of their thinking. They don’t need to argue that teachers should have a role; they simply show us that it’s true.

Fourth: Lively Voice

Scientific research offers teachers lots of splendid guidance … but if you’ve tried to read the research, you know it can be dry. Parched, even.

Happily, both Bain and Agarwal have lively writing voices. Powerful Teaching doesn’t feel like a dry lecture, but a friendly conversation.

For example:

Learning is complex and messy, it’s not something we can touch, and it’s really hard to define. You might even say that the learning process looks more like a blob than a flowchart.

Having tried to draw many learning flowcharts, only to end up with blobs, I appreciate this honest and accurate advice.

What’s Not to Love?

As a reviewer, I really should offer at least some criticism of Power Tools. Alas, I really don’t have much – at least not much substantive.

Once or twice, I thought that the research behind a particular finding is more muddled that PT lets on. For example, as I’ve written about before, we’ve got contradictory evidence about the benefits of retrieval practice for unstudied material.

But, as noted above, Agarwal is an important researcher in this field, and so I’m inclined to trust her judgment.

Mostly, I think you should put Powerful Teaching at the top of your summer reading list. You might sign up for the summer book club. Keep on eye on the website for updates.

Learning How to Learn: How to Succeed in School Without Spending All Your Time Studying – A Guide for Kids and Teens by Barbara Oakley, Terrence Sejnowski, and Alistair McConville
Rebecca Gotlieb
Rebecca Gotlieb

Barbara Oakley, Terrence Sejnowski, and Alistair McConville have authored a students’ guide to learning. The book, Learning How to Learn: How to Succeed in School Without Spending All Your Time Studying – A Guide for Kids and Teens, is written in a way that is easily accessible to young people and full of helpful learning tips that are supported by neuroscience. It includes pictures illustrated by Oliver Young, vivid metaphors, comprehension questions, and chapter summaries to make the ideas stick. Learning How to Learn is essential for middle- or high-school libraries and would make an ideal gift to young people who are seeking to improve their performance in school.

Oakley and Sejnowski are the co-creators of the largest online course also titled “Learning How to Learn.” Oakley is a professor of engineering at Oakland University in Rochester Michigan. Sejnowski is a neuroscientist, Howard Hughes Medical investigator and professor at the Salk Institute and the University of California, San Diego.

Fittingly, at the outset, the authors explain that one helpful learning strategy is previewing what you will read. They suggest being an active reader by taking notes and asking and answering questions while reading.

Oakley, et. al. explain that there is a network in the brain that supports focused thinking and a separate network that supports diffuse thinking. Typically, we do not engage these two networks simultaneously, but both are important. As such, we need to focus intently on our work sometimes and reward ourselves with opportunities to engage the diffuse-thinking network at other times. Procrastinating can interfere with high quality learning because we run out of time to study. The Pomodoro Technique, in which one eliminates distractions, sets a timer for 25 minutes, focuses intently on one task for that whole time, and then rewards oneself with a diffuse thinking task (like exercise), can be effective for combatting procrastination. The authors suggest also starting with the tasks you least want to do and setting a time to stop working for the day to promote focus while working.

The authors explain that brain cells or “neurons” and the paths of communication between them form our thoughts. The more we activate these paths of communication the stronger they become and the better we learn.  They explain that our working memory capacity—the ideas we hold in mind at one time—is limited, but our long-term memory ability is unlimited. Our goal should be to move information efficiently from working memory to long-term memory. As such, the authors suggest that rather than studying by merely rereading, we should actively pull ideas out from the to-be-learned material. We can use songs, metaphors, and analogies to help form connections between ideas and support long-term memory. We should clarify ideas that we do not understand by asking for help or searching the internet. To remember ideas we should pay attention when absorbing information, avoid tricking ourselves into thinking we know material that we do not (i.e., do not look at the answers at the back of the book), and construct visual representations of ideas. We should also avoid multi-tasking, which dampens our working memory ability. The authors suggest other helpful strategies such as varying the places you study, relying on multiple senses to reinforce learning, and journaling about what you have learned and what you still need to study.

Oakley, et. al. advocate for involvement in clubs or activities that relate to your interest and spending time with people who can stimulate your thinking. They also explain that learning about topics that are very different from one’s interest can actually improve one’s understanding in the domain of interest. New subjects or skills may not feel fun at first, but with dedicated effort they may become enjoyable.

The authors mention the importance of getting sufficient sleep, exercising regularly, and eating a healthy diet.

They offer test-taking tips. For example, they suggest breathing deeply and reframing anxious feelings during testing as feelings of excitement about the opportunity to show what you know.  They suggest starting a test by glancing at the hardest problems so that you can passively think about those challenging questions while working on simpler ones.

The authors conclude on an optimistic note. Just because a student has been performing poorly in school does not mean he or she will always struggle. Having a positive attitude about learning, especially when paired with knowledge about ways to learn effectively, can carry a student far.  Appreciating that learning is an empowering experience and that it is a privilege that many young people do not have can help students make the most of their learning.

Oakley, B., Sejnowski, T., & McConville, A. (2018). Learning How to Learn: How to Succeed in School Without Spending All Your Time Studying.New York, NY: Tarcher Perigee.

Default Image
Rebecca Gotlieb
Rebecca Gotlieb

Young people with Autism Spectrum Disorder (ASD) typically want social relationships but have trouble building them. Extensive social skills training research has been conducted with young children with ASD, but research about social skills training for young adults with ASD is scant. Elizabeth A. Laugeson has designed an evidence-based method of group training for young adults with ASD and other social challenges and their parents/caregivers. This training is designed to help the young adults with ASD develop skills and learn social rules to help them build the social and romantic relationships they seek.

Her book, PEERS® for Young Adults: Social Skills Training for Adults with Autism Spectrum Disorder and Other Social Challenges, is the product of years of research and clinical practice with this population. Laugeson is a clinical psychologist and assistant clinical professor at the University of California, Los Angeles Semel Institute for Neuroscience and Human Behavior. She also directs an ASD research alliance and an outpatient program to provide social skills training for people with ASD. She and colleagues have conducted and published rigorous randomized clinical trials of the Program for the Education and Enrichment of Relational Skills (PEERS®). The book, PEERS® for Young Adults,serves as a detailed manual for clinicians and educators about how to lead these coaching sessions so that they can support groups of young people (i.e., ideally 18- 24 years old) with ASD who wish to improve their social relations.

The program is designed around common social errors that people with ASD make. It is meant to be administered in its entirety and in the order described. It is likely to be most effective when the young adult participants want to be part of the program and seek more fulfilling social relations.  Laugeson provides a thorough explanation of what to do in each session. That is, each chapter presents the rationale for the session, explains how to review homework, describes a didactic lesson, and presents a new homework assignment. These assignments include tasks like having a phone conversation and enrolling in activities related to the young adult’s interest.  A key feature of the program is that it involves concurrent sessions with social coaching training for the parents/caregivers and active training for the young people with ASD. Parent/caregiver involvement is important so that the parents know how they can help their young adult. Each session concludes with the young adults and caregivers reuniting to debrief and plan for the next session together.

The group training program progresses through teaching how to: start and maintain conversations, find sources of friends, communicate electronically, use humor appropriately, enter and exit group conversations, hanging out with friends, indicate romantic interest, ask someone on a date, go on a date, and handle disagreements and bullies.  There are numerous helpful and ideas in these sessions.  For example, young adult participants should learn friendship is a choice, finding common interests with another person is a good way to start a conversation, trading information is key to social interactions, and remaining flexible to changes that may occur during social gatherings is necessary.

The guide is thorough in including behavioral management techniques, tools to help young adults and their caregivers assess progress and practice skills, role play demonstration descriptions with accompanying videos available online, perspective-taking questions, and a related mobile app called FriendMaker.

Laugeson’s research has shown that many young people with ASD have benefited from PEERS®training. This book makes it possible and practical for clinicians and educators to run PEERS®training on their own so that many more young people can learn these critical lessons and begin living happier, more socially-fulfilled lives.

Laugeson, E. A. (2017). PEERS® for young adults: Social skills training for adults with autism spectrum disorder and other social challenges. New York, NY: Routledge.

Irresistible: The Rise of Addictive Technology and the Business of Keeping Us Hooked by Adam Alter
Rebecca Gotlieb
Rebecca Gotlieb

Where is your mobile phone right now?  How much time have you spent on it today? Could you stand to be without it? In Irresistible: The Rise of Addictive Technology and the Business of Keeping Us Hooked, Adam Alter, New York University Stern School of Business associate professor and New York Times bestselling author, discusses the large and increasing rate of behavioral addictions (especially to technology). He examines why behaviors become addictive and what we can do to reduce addiction. About half of the population in the developed world is addicted to something, and for the majority of these people it is a behavior. These addictions stop people from engaging with important and healthy activities. However, because they are largely produced by environmental circumstances, we can change our environments to curb these addictions. Irresistible is an informative read for educators and parents who are worried about young people who are unable to put down their phones or video games, and for people who themselves may be part of the pandemic of behavioral addiction.

Behaviors become addictive when they involve small, concrete, quantifiable goals that are slightly beyond reach, increasing task-difficulty, and positive feedback that occurs in unpredictable increments. Noticing improvements in performance, wishing to resolve something that is unresolved, and engaging in social comparisons can also make a behavior addictive. Many modern online games, social media websites, and even email have these elements to them.  Addiction is being deeply attached to these experiences, even though the rewards are out-weighed by long-term damage.  Addictions are different from obsessions or compulsions in that addictions are pleasurable to pursue, whereas obsessions and compulsions are unpleasant not to pursue. Eventually people with an addiction may come to dislike the substance or behavior they are addicted to because of the adverse consequences it has on their life, but they may still want or crave the substance or behavior. The dopaminergic system in the brain is involved in this feeling of wanting.

While the American Psychological Association recognizes that it is not only substances that can be addictive, it still has not officially recognized some addictions such as to exercise, love, or smartphones.  Further, some people oppose the idea that behaviors can be addictive or that if close to half the population suffers from addiction, it can really be an illness. Alter shows that each of these ideas is false and argues that under certain conditions any of us could become addicts.

The adage “an ounce of prevention is worth a pound of cure” applies to behavioral addiction.  The best way to stem the rising tide of addiction is to stop addictions from forming.  Parents should limit their kids, especially young kids, screen time. They should attempt to draw connections between the content on-screen and experiences in the child’s life.  These steps may stem the media-induced decline in children’s ability to read emotions, interact with others, and develop robust attentional and memory abilities.

For people who are already addicted, they must first realize that their addiction is a problem. Cognitive behavioral therapy and motivational interviewing can help make an individual aware of the costs and benefits of his/her addictive behavior, so that the individual can decide for himself that he is motivated to change. The riskiest environment for addicts is one with cues that remind them of the link between certain behaviors and desirable outcomes. The riskiest time in an addict’s recovery is when things are going well for the first time after hitting rock-bottom.  Will-power alone is unlikely to be enough to break an addiction. Instead, understanding why the addiction was rewarding and addressing that, or replacing it with a healthier alternative is more likely to be effective.  Redesigning one’s environment to limit access to temptations, blunting the extent to which unavoidable temptations are tempting, or instituting systems of punishment when one engages in a bad habit, can be effective.  We are all more likely to act in desirable ways if doing so is fun and easy.  Gamification, in which an experience is turned into a game so that the experience in and of itself is rewarding, can be an effective way to promote learning and engagement with other desirable behaviors.

By raising awareness of just how wide-spread and likely to increase behavioral addiction is and by offering steps to address behavioral addiction, Alter offers insights that can help our society be healthier, happier, and more productive.

Alter, A. (2017). Irresistible: The rise of addictive technology and the business of keeping us hooked. New York, NY: Penguin.

 

 

The Disordered Mind: What Unusual Brains Tell Us About Ourselves by Eric R. Kandel
Rebecca Gotlieb
Rebecca Gotlieb

One of the most complex unsolved mysteries in science is how the brain produces consciousness.  The study of brain disorders not only helps us understand and treat those conditions; it also renders insights into questions about human consciousness, sense of self, and creativity.  It can help us appreciate both our individuality and our shared humanity. Eric R. Kandel, Columbia University professor, Howard Hughes Medical Institute senior investigator and Nobel Prize winner in Physiology or Medicine, advances these beliefs in his book The Disordered Mind: What Unusual Brains Tell Us About Ourselves. Kandel, who also authored The Age of Insight, reviews the latest research on autism, depression, anxiety, schizophrenia, addiction, Parkinson’s disease, and Alzheimer’s disease to illuminate the factors that contribute to these diseases, how the diseases are experienced, possible points of intervention, and what these diseases reveal about our social, emotional, decision-making, memory, kinesthetic, and creative abilities more generally.

Kandel commences with a brief overview of the history of psychiatry and neurology and modern tools for studying the brain and disordered behavior. He emphasizes that genes and environment interact to disrupt neural circuitry, resulting in disordered minds.  Brain disorders can be caused by over or under active brain circuits or ineffective communication within the brain because of injury, altered synaptic connections, or developmentally inappropriate patterns of brain connection.

Kandel contends that we are inherently social; typical development cannot proceed in isolation. Yet, autism is a disorder related to difficulty connecting with people and understanding others’ minds. The so called “social brain,” which includes the inferior temporal cortex, amygdala, temporoparietal junction, and other regions, may be disrupted in autism. Autism spectrum disorders, like several other brain disorders, have a strong genetic basis and may come about in part because of age-related mutations in fathers’ sperm.

We are not only social beings but also emotional. Indeed, emotions, or states of readiness in our brain in response to our surroundings, play a critical role in our everyday lives and in our constructions of our sense of self.  One in every three Americans will experience anxiety at least once in their life, and about 8% will experience post-traumatic stress disorder. Depression is a mood disorder that affects about 5% of people and is characterized by feelings of extreme sadness, hopelessness and worthlessness and by a lack of energy.  Although it can be cruelly stereotyped as such, depression is not a personal or moral weakness. Kandel explains how the use of selective serotonin reuptake inhibitors, ketamine, cognitive behavioral theory, and brain stimulation can all be used, under different conditions and in different combinations, to treat depression. These disorders are teaching us about where emotions arise in the brain (i.e., in areas including the hypothalamus, amygdala, striatum, and prefrontal cortex), how the brain and body engage in bidirectional communication, and how emotions impact behavior, decision-making, and morality.

Several brain disorders are caused by dopamine imbalances. Schizophrenia is a neurodevelopmental disorder related to excessive dopamine. It affects 1% of the population by disrupting thinking, behavior, memory, and sense of self starting in late adolescence.  Whereas depression results primarily from functional abnormalities in the brain, schizophrenia results primarily from anatomical abnormalities. Unfortunately, most currently available treatments for schizophrenia address only the symptoms related to disordered thoughts and not the symptoms like lack of motivation. Fortunately, preemptive therapy for people at risk for developing schizophrenia is promising.  Parkinson’s disease, a motor disorder associated with tremors at rest and slow movement, is caused by defective protein folding that causes dopamine producing neurons in the brain’s substantia nigra to die. Addiction is another chronic disease in which dopamine is involved. Medications that help people forget the pleasure of an addictive substance can help treat addiction. Unfortunately, even though drug overdose is a leading cause of death for people under 50, there has been minimal investment in drugs to treat addiction, Kandel laments.

Although memory abilities can be disrupted in several of the disorders Kandel reviews, in dementia memory loss is the primary symptom. Alzheimer’s disease is fundamentally different from age-related memory decline. It is causes by protein misfolding, causing toxic clumps that create neurofibrillary tangles. Our understanding of Alzheimer’s disease, including genetic and health risk factors for developing it, has increased rapidly.

Synthesizing his review of these disorders, Kandel offers insights into our understanding of creativity and consciousness. Creativity has a biological basis in the brain and the capacity for creativity is universal (i.e., not dependent on mental disorders). By reviewing the art of people with various brain disorders Kandel suggests that some of the elements that are important for creativity are perseverance, collaboration, mind-wandering, and combining unrelated elements. As Sigmund Freud argued, unconscious mental work impacts conscious thinking. Disordered minds are revealing that our decisions emerge from our unconscious thoughts, more than from our conscious thoughts.

Kandel concludes with a powerful prediction—that neurology and psychiatry will merge soon into one discipline that examines how genes and environment lead to individual differences in brains and behavior. This field could move us to personalizing medical treatment such that we may be able to prevent the diseases of the brain and mind.

Kandel, E.R. (2018). The Disordered Mind: What Unusual Brains Tell Us About Ourselves.New York, NY: Farrar, Strous, and Giroux.

Reader, Come Home: The Reading Brain in a Digital World by Maryanne Wolf
Rebecca Gotlieb
Rebecca Gotlieb

How often do you read in a deep and sustained way fully immersed, even transformed, by entering another person’s world?  In her newest book, Reader, Come Home: The Reading Brain in a Digital World,Maryanne Wolf cautions that, the way our engagement with digital technologies alters our reading and cognitive processes, could cause our empathic, critical thinking, and reflective abilities to atrophy.  This in turn could undermine our democratic, civil society.

Wolf, the John DiBiaggio Professor of Citizenship and Public Service at Tufts University and the director of the Center for Dyslexia, Diverse Learners, and Social Justice at UCLA, has written a series of nine warm letters to her readers encouraging us to think about the perils of a changing reading culture and promises of supporting media biliteracy in young readers.  She argues that we should teach students distinct ways of reading print versus digital sources and help them switch between these modes of reading.  Drawing on evidence from across cognitive neuroscience and education and on her own experiences as a teacher, parent, researcher, and non-profit founder, Wolf suggests helpful parenting practices, ways teachers can support reading and digital literacy, and how policy might increase the number of students who can fully immerse themselves in written thought.

As important as reading is to our thinking today, we did not evolve to read and cannot learn to do so without support.  It is through an elaborate process of neural recycling—of repurposing brain areas that have evolved for other reasons—that we are able to become readers.  With whimsical analogies to the circus Wolf explains how the act of reading even a single word requires coordinated activation across many neurons in regions distributed throughout the brain.  She explains properties of attention, vision, sound, and affective processing in the brain that contribute to reading.

Wolf then explores how digital reading may endanger deep engagement with text and empathizing with others by limiting our attention span and background knowledge.  Surprisingly, we are reading more than ever before—on average about a hundred thousand words per day. Because we are so overloaded with text, simplifying, skimming, and reading in short bursts are reasonable compensatory mechanisms. Wolf’s concern lies in this skimming style of reading becoming a habit that we exercise across all content. She is troubled by the trends of decreasing empathic abilities among young people, increasing rates of attentional disorders, and increasing susceptibility to “fake news”—all of which have occurred in parallel with a rise in digital reading, media multi-tasking, technologically mediated social interactions, and outsourcing of knowledge to the internet. Deep reading, on the other hand, causes people to take perspectives—a process that requires patience and increases our knowledge of the world and our ability to behave morally.

By fourth grade only a third of children in the U.S. can read deeply. Nearly half of African-American and Latino student are not reading at even a basic level. Wolf offers advice about countering this trend in the digital age. Drawing heavily on The Big Disconnect, Wolf suggests that before age five, children and parents should jointly read physical print-based books as often as possible and largely limit digital reading. Reading to children exposes them to the sounds, visual representations, and word-meanings in our language and builds their knowledge of the world. Schools can support reading by determining students’ readiness to read and helping all students improve, including struggling readers who have been underexposed to text and readers with learning disabilities. Phonics should unequivocally be a part of reading instruction. Teachers in higher grades should learn to teach reading since many of their students may not be proficient.  Policy makers can help by investing in early childhood education, literacy, teacher professional development, and equitable access to print and digital media.

Wolf concludes by proposing that, since the next generation will enter a job market primarily based on jobs that do not exist today, we need to support young people in building biliterate brains.  That is, they need to learn to work effectively in both print and digital media. As they develop proficiency in both deep and fast ways of reading they will also learn when and how to switch between these modes.  Schools should require courses that openly discuss the intriguing and harmful aspects of internet usage, and responsible practices.

A democracy thrives on diversity of ideas, but if citizens are not able to use new technologies, critical thinking, and empathic skills to evaluate those ideas, society will not advance. Wolf’s strategies for supporting reading in a digital age help us improve as readers and help us grow a stronger, more civil democracy.

Wolf, M. (2018). Reader, Come Home: The Reading Brain in a Digital World. New York: Harper Collins.

Inventing Ourselves: The Secret Life of the Teenage Brain by Sarah-Jayne Blakemore
landb
landb

More than any other life stage adolescence is derided and characterized as an unpredictable, turbulent storm. In Inventing Ourselves: The Secret Life of the Teenage Brain, University College London cognitive neuroscience professor Sarah-Jayne Blakemore argues that we need to stop disparaging adolescence and instead recognize it as a critical time for building identity. Further, we need to support young people in this process. Blakemore explains how adolescents develop socially and neurologically, how that development shapes behavior, and how it impacts who young people will become. Inventing Ourselves will be useful for educators wishing to understand better people who are between puberty and adulthood (roughly ages 12-25) and for developmental psychologists wishing to explore how brain and behavior develop after childhood.

Adolescence is a distinct period of life observable across all human cultures and across numerous animal species. During adolescence most people develop a stable sense of who they are and how they would like to be viewed by others. Identity development is shaped by environment and by some of the social changes that occur during adolescence. For example, adolescents are more likely to engage in social comparison, value others’ opinions, attend to cultural norms, spend less time with parents and more time alone or with friends, experience embarrassment, and wrongly assume others care or notice their own behavior.

Interestingly, the pattern of brain activity that supports the ability to think about oneself changes during adolescence, which may correspond to these behavioral changes. Conversely, social experiences during adolescence can change the brain. For example, social exclusion results in more mood disturbance and anxiety for adolescents than for adults, and isolation during this period can have long lasting impacts on brain structure, hormone levels, and long-term behavior. For adults the effects of isolation on the brain are not as dramatic.

More generally, the brain undergoes substantial change during adolescence. Gray matter volume decreases and white matter volume increases. The prefrontal cortex, an area associated with decision-making, self-control, and self-awareness undergoes substantial, protracted development during adolescence. A network of regions that supports the ability to understand others’ minds undergoes anatomical maturation through early adulthood.

Blakemore also discusses the “mismatch hypothesis” of adolescent brain development. That is, the limbic system, which is involved in reward sensitivity, matures on average earlier than the prefrontal cortex. This mismatch may explain adolescents’ risk-taking because rewards may be especially alluring and self-control may be limited. Importantly, Blakemore notes that there is individual variability in the extent to which a mismatch exists. Although major changes in the brain level off by adulthood, brains can always continue to change with experience.

Adolescence can be a dangerous time. Adolescents’ penchant for risk-taking can lead them to have deadly accidents. Extensive consumption of cannabis and alcohol can reduce cognitive ability later in life and can cause more damage to the brain than an equal amount of consumption in adulthood would cause. Additionally, three-fourths of mental illnesses emerge by the end of adolescence. Fascinating brain research suggests that we may be able to detect differences in young peoples’ brains that would be predictive of whether they will go on to develop mental illnesses such as schizophrenia.

Informed by a body of research about the messages to which adolescents are responsive, Blakemore advises, “if we want to curb certain kinds of risk-taking in young people, it would be a good idea to focus on the immediate, social consequences of actions and decisions rather than, or as well as, delivering earnest warnings about long-term repercussions.” She argues also that mindfulness training might be a way to improve self-control and well-being and reduce mental health issues in adolescents.

Blakemore describes the value of understanding adolescents’ brains and behavior for supporting education. She suggests that adolescents’ proclivity for risk-taking should be harnessed in schools to push adolescents to take intellectual risks. She suggests that high schools should start later so that students are not deprived of sleep. Brain research shows that adolescents’ circadian rhythms are shifted later than adults, and behavioral evidence suggests that adolescents are not sleeping enough. A final suggestion is that in determining punishments for adolescents’ transgressions, we should remember that adolescents have tremendous potential for change, they are biologically disposed to riskiness, and they may be more likely to learn from rewards than from punishments.

Adolescents, more than people at other stages, are creative, passionate, and eager to learn from new people and experiences. All around us there are examples of inspiring young people making an impact in society, overcoming obstacles, and building better lives for themselves and others. We need to honor adolescence for what it is—a time of identity development—and support adolescents because of what they are—our hope and our future.

Blakemore, S.J. (2018). Inventing Ourselves: The Secret Life of the Teenage Brain. New York, NY: Public Affairs.

Surprise: The Adolescent Brain Isn’t Broken
Andrew Watson
Andrew Watson

Chapter 2 of Inventing Ourselves: The Secret Life of the Teenage Brain kicks off with a teenager’s diary entry from April of 1969:

I went to arts centre (by myself!) in yellow cords and blouse. Ian was there but he didn’t speak to me. Got rhyme put in my handbag from someone who’s apparently got a crush on me. It’s Nicholas I think. UGH.

Man landed on moon.

This anecdote marvelously captures common perceptions of adolescence.

adolescent brain

Self absorbed. Dotty about crushes and boys/girls and clothes. Too addled by hormones to focus on epochal events — like, say, Neil Armstrong’s small step onto the moon.

In Defense of the Adolescent Brain

Researcher Sarah-Jayne Blakemore would like to change your mind about all of these perceptions.

Drawing on decades of research, she focuses on one essential claim. Teenagers’ brains aren’t incomplete versions of adult brains. They’re not hyper-hormonal versions of children’s brains.

Instead, adolescence results from distinct, meaningful neural developments. Teenagers do the developmental work that their life stage calls upon them to do. Their brains help them along with exactly this task.

The Stories that Science Tells

More than most researchers, Blakemore manages to describe scientific studies precisely and readably.

You get a very clear picture of what researchers did, and why they designed their experiments as they did. And: what they learned from doing so.

And yet, you’re never bored or baffled. Blakemore’s descriptions just make sense.

(I try to do exactly this almost every day on this blog, so I can tell you: that’s REALLY hard to do well.)

As a result, you’ll come away with a clearer understanding of the cognitive developments that take place during the teenage years.

Also, some of the surprising deficits. (Teenagers are worse than 10-year-olds at recognizing emotional facial expressions!)

By the way: teens also don’t recognize the difference between high- and low- stakes as well as we would expect.

Because of Blakemore’s clarity, you’ll also know how we know each of these truth.

Conclusions

Blakemore doesn’t end with a step-by-step program for teaching or parenting teens.

Instead, she offers a way of thinking about this vital stage of development.

She helps us step back from day-to-day adolescent conflicts to see the bigger neuro-biological picture.

For example: it’s not just teenagers who drink more alcohol with their peers. Adolescent MICE drink more alcohol when surrounded by other adolescent mice. No, really. (See page 4.)

She also resists the popular temptation to rage against technology use. Based on her lab’s analysis (undertaken by one-time LatB blogger Kate Mills), we don’t really know enough about technology use to draw firm conclusions about its perils.

In particular, we don’t have good at all about the influence of adults’ technology use on the children around them.

In brief, we should read Blakemore’s book not for quick solutions but for long-term perspectives.

 

Life Without Memory: Your Hippocampus and You
Andrew Watson
Andrew Watson

Who are you without your memory?

In neurobiological lingo: who are you without your hippocampus?

The Best-Known Answer

No doubt you’ve heard of Henry Molaison, aka H. M., whose hippocampi were removed in order to cure debilitating epilepsy.

The good news: the operation (more-or-less) fixed the epilepsy.

The (very) bad news: without his hippocampi, Henry couldn’t form new long-term memories. In fact, he struggled to recall prior memories as well.

So much of our knowledge about memory formation comes from Henry’s life.

We understand the brevity of working memory because of H. M.

We distinguish between declarative memory (“knowing what”) and procedural memory (“knowing how”) better because of H. M.

As Suzanne Corkin describes in Permanent Present Tense, research into Henry’s very rare brain tells us more about each of our brains.

Today’s News: A New Henry

On December 29 of 2007, artist Lonni Sue Johnson came down with a bad case of viral encephalitis. As a result, she ended up with severe damage to both her hippocampi. This damage, in fact, resembles H.M.’s surgical lesions.

You can read about her case in a remarkable book by Michael D. Lemonick, The Perpetual Now: A Story of Amnesia, Memory, and Love.

Lonni Sue’s situation resembles Henry’s in many ways — they both live in a “perpetual now” — but their stories differ as well.

First: Henry was relatively young at the time of his surgery, and so he hadn’t yet developed professional skills. (Because his epilepsy also proved quite debilitating, he didn’t get very far in school.)

Lonni Sue, however, was an accomplished artist and musician — even an amateur pilot.

For example: she drew several covers for the New Yorker magazine. You might recognize her whimsical style if you google her art.

Second: Her family decided soon after her illness that they would be as public as Henry’s family had been private. They want her remarkable condition — as much as possible — to benefit science, and the public’s understanding of the brain.

For that reason, when Lonni Sue’s sister Aline ran into Lemonick on the street, she asked if he wanted to write about her life without memory.

Third: Lonnie Sue brought a remarkable good cheer to a life that might seem so depressing, even terrifying, to others.

When Lemonick first met her, she brightly introduced herself and showed him her drawings. Then, she introduced him to a word game she often played: “singing the alphabet.”

She sang a list of words that grew in alphabetical order. Here’s what she sang that first time (and, notice how cheerful the words are!):

“Artists beautifully creating delightful exquisite finery giving hospitable inspiration joining keen laughter’s monthly necessities openly preparing quiet refreshment sweetly turning under violet weathervane xylophones yearning zestfully”

Life Without Memory: Research Findings

For the same reasons that Aline invited Lemonick to write about her sister, she has also invited researchers to learn what they can from Lonnie Sue’s brain.

Lemonick does a wonderful job of explaining these research findings. He does go into the methodological details. But he maintains a big-picture emphasis on the history and meaning of the research.

For instance, we saw that research on Henry helped solidify a distinction between procedural and declarative memory. Further research with Lonni Sue suggests that these categories often overlap.

Her knowledge of music, for example, acts like both declarative and procedural knowledge at the same time.

For teachers, this finding just makes sense.

So many of the skills students learn require them to know facts AND procedures. A chemistry lab, a historical investigation, a business plan: all these school accomplishments ask students to know stuff, and to do things with that knowledge.

The Perpetual Now won’t necessarily help classroom teachers design better lesson plans. But, it does help us understand the rich complexity of human memory.

And, it tells the story of an extra-ordinary life: one where “xylophone weathervanes yearn zestfully.”

I recommend the book enthusiastically.