Outstanding popular science.
A masterful update on how the brain operates.
At the beginning, neuroscientist Eagleman notes how DNA gets all the credit for being the basis of life but deserves only half. Every animal today possesses DNA identical to that of 30,000 years ago, and its behavior is also indistinguishable. A caveman with identical DNA might look like us, but their actions and thoughts would be utterly foreign. Credit goes to the human brain, entirely the creation of DNA at birth but unfinished. “For humans at birth,” writes the author, “the brain is remarkably unfinished, and interaction with the world is necessary to complete it.” Unlike an arm or stomach, the brain is a dynamic system, a general-purpose computing device that changes in response to experience. With this introduction, Eagleman is off and running. In the first of many delightful educational jolts, he notes that the mature brain contains regions with specific functions, but under magnification, its billions of nerve cells, which form trillions of connections, look the same. What’s happening? The brain does not think or hear or touch anything. “All it ever sees are electrochemical signals that stream in along different data cables,” writes the author, but it works brilliantly to extract patterns from this input. As we age, our brain figures out a set of rules, which the author lays out in his conclusion. At birth it possesses enormous flexibility because it must literally learn how to function. Children can learn several languages fluently, but after age 10, new languages come with an accent. If a child is kept in the dark and silence for several years after birth, they will never see or talk. Neurons compete as fiercely as they cooperate. If one area stops functioning, others take over. Thus, when the vision region falls silent from blindness or even a few hours in a blindfold, input from hearing or touch moves in. To fend off this intrusion during sleep, Eagleman theorizes, our vision area continues to operate by generating dreams.
Outstanding popular science.Pub Date: Aug. 25, 2020
ISBN: 978-0-307-90749-3
Page Count: 336
Publisher: Pantheon
Review Posted Online: May 25, 2020
Kirkus Reviews Issue: June 15, 2020
BOOK REVIEW
BOOK REVIEW
Striking research showing the immense complexity of ordinary thought and revealing the identities of the gatekeepers in our...
A psychologist and Nobel Prize winner summarizes and synthesizes the recent decades of research on intuition and systematic thinking.
The author of several scholarly texts, Kahneman (Emeritus Psychology and Public Affairs/Princeton Univ.) now offers general readers not just the findings of psychological research but also a better understanding of how research questions arise and how scholars systematically frame and answer them. He begins with the distinction between System 1 and System 2 mental operations, the former referring to quick, automatic thought, the latter to more effortful, overt thinking. We rely heavily, writes, on System 1, resorting to the higher-energy System 2 only when we need or want to. Kahneman continually refers to System 2 as “lazy”: We don’t want to think rigorously about something. The author then explores the nuances of our two-system minds, showing how they perform in various situations. Psychological experiments have repeatedly revealed that our intuitions are generally wrong, that our assessments are based on biases and that our System 1 hates doubt and despises ambiguity. Kahneman largely avoids jargon; when he does use some (“heuristics,” for example), he argues that such terms really ought to join our everyday vocabulary. He reviews many fundamental concepts in psychology and statistics (regression to the mean, the narrative fallacy, the optimistic bias), showing how they relate to his overall concerns about how we think and why we make the decisions that we do. Some of the later chapters (dealing with risk-taking and statistics and probabilities) are denser than others (some readers may resent such demands on System 2!), but the passages that deal with the economic and political implications of the research are gripping.
Striking research showing the immense complexity of ordinary thought and revealing the identities of the gatekeepers in our minds.Pub Date: Nov. 1, 2011
ISBN: 978-0-374-27563-1
Page Count: 512
Publisher: Farrar, Straus and Giroux
Review Posted Online: Sept. 3, 2011
Kirkus Reviews Issue: Sept. 15, 2011
BOOK REVIEW
IN THE NEWS
IN THE NEWS
Readers unfamiliar with the anecdotal material Greene presents may find interesting avenues to pursue, but they should...
Greene (The 33 Strategies of War, 2007, etc.) believes that genius can be learned if we pay attention and reject social conformity.
The author suggests that our emergence as a species with stereoscopic, frontal vision and sophisticated hand-eye coordination gave us an advantage over earlier humans and primates because it allowed us to contemplate a situation and ponder alternatives for action. This, along with the advantages conferred by mirror neurons, which allow us to intuit what others may be thinking, contributed to our ability to learn, pass on inventions to future generations and improve our problem-solving ability. Throughout most of human history, we were hunter-gatherers, and our brains are engineered accordingly. The author has a jaundiced view of our modern technological society, which, he writes, encourages quick, rash judgments. We fail to spend the time needed to develop thorough mastery of a subject. Greene writes that every human is “born unique,” with specific potential that we can develop if we listen to our inner voice. He offers many interesting but tendentious examples to illustrate his theory, including Einstein, Darwin, Mozart and Temple Grandin. In the case of Darwin, Greene ignores the formative intellectual influences that shaped his thought, including the discovery of geological evolution with which he was familiar before his famous voyage. The author uses Grandin's struggle to overcome autistic social handicaps as a model for the necessity for everyone to create a deceptive social mask.
Readers unfamiliar with the anecdotal material Greene presents may find interesting avenues to pursue, but they should beware of the author's quirky, sometimes misleading brush-stroke characterizations.Pub Date: Nov. 13, 2012
ISBN: 978-0-670-02496-4
Page Count: 320
Publisher: Viking
Review Posted Online: Sept. 12, 2012
Kirkus Reviews Issue: Oct. 1, 2012
BOOK REVIEW
BOOK REVIEW
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