Dehaene’s fourth insightful exploration of neuroscience will pay dividends for attentive readers.
Computers learn, but they will not hold a candle to humans for the foreseeable future, according to this expert overview of learning.
Dehaene (Cognitive Psychology/Collège de France (Consciousness and the Brain: Deciphering How the Brain Codes Our Thoughts, 2014, etc.) emphasizes that a fly can learn and that a newborn’s brain contains a great deal of information thanks to several billion years of evolution. Unfortunately, he writes, “evolution adapts each organism to its ecological niche, but it does so at an appallingly slow rate.” However, “the ability to learn…acts much faster; it can change behavior within the span of a few minutes, which is the very quintessence of learning.” Never mind our opposable thumb, upright posture, fire, tools, or language; it is education that enabled humans to conquer the world. “We are not simply Homo Sapiens, but Homo docens—the species that teaches itself,” writes the author. Short-term memory of a literate person is almost double that of someone who has never attended school. IQ (a supposedly fixed concept) increases several points for each additional year of education. In the first of the book’s occasionally dense but mostly accessible sections, Dehaene defines learning as simply forming an internal model of the outside world. In the second, he describes how learning occurs. A computer leaves the assembly line as a blank slate, but a newborn’s brain already possesses circuits enabling it to generate abstract formulas and the ability to choose wisely from those formulas according to their plausibility. The third section defines “four pillars of learning” that make our brain the most effective learning device. “Attention” carefully selects relevant signals. "Active engagement" (i.e., curiosity) generates hypotheses. “Error feedback” corrects the mental model when the world violates our expectations. Finally, “consolidation,” which involves sleep as a key component, transfers knowledge to long-term memory, freeing neural circuits for further learning. The best educators, whether parents or teachers, follow these principles, and the author urges their general adoption.
Dehaene’s fourth insightful exploration of neuroscience will pay dividends for attentive readers.Pub Date: Jan. 28, 2020
ISBN: 978-0-525-55988-7
Page Count: 352
Publisher: Viking
Review Posted Online: Oct. 7, 2019
Kirkus Reviews Issue: Nov. 1, 2019
BOOK REVIEW
BOOK REVIEW
The sub-title of this book is "Reflections on Education with Special Reference to the Teaching of English in the Upper Forms of Schools." But one finds in it little about education, and less about the teaching of English. Nor is this volume a defense of the Christian faith similar to other books from the pen of C. S. Lewis. The three lectures comprising the book are rather rambling talks about life and literature and philosophy. Those who have come to expect from Lewis penetrating satire and a subtle sense of humor, used to buttress a real Christian faith, will be disappointed.
Pub Date: April 8, 1947
ISBN: 1609421477
Page Count: -
Publisher: Macmillan
Review Posted Online: Oct. 17, 2011
Kirkus Reviews Issue: April 1, 1947
Yes: it's high time for a de-romanticized, de-mythified, close-up retelling of the U.S. Space Program's launching—the inside story of those first seven astronauts.
But no: jazzy, jivey, exclamation-pointed, italicized Tom Wolfe "Mr. Overkill" hasn't really got the fight stuff for the job. Admittedly, he covers all the ground. He begins with the competitive, macho world of test pilots from which the astronauts came (thus being grossly overqualified to just sit in a controlled capsule); he follows the choosing of the Seven, the preparations for space flight, the flights themselves, the feelings of the wives; and he presents the breathless press coverage, the sudden celebrity, the glorification. He even throws in some of the technology. But instead of replacing the heroic standard version with the ring of truth, Wolfe merely offers an alternative myth: a surreal, satiric, often cartoony Wolfe-arama that, especially since there isn't a bit of documentation along the way, has one constantly wondering if anything really happened the way Wolfe tells it. His astronauts (referred to as "the brethren" or "The True Brothers") are obsessed with having the "right stuff" that certain blend of guts and smarts that spells pilot success. The Press is a ravenous fool, always referred to as "the eternal Victorian Gent": when Walter Cronkite's voice breaks while reporting a possible astronaut death, "There was the Press the Genteel Gent, coming up with the appropriate emotion. . . live. . . with no prompting whatsoever!" And, most off-puttingly, Wolfe presumes to enter the minds of one and all: he's with near-drowing Gus Grissom ("Cox. . . That face up there!—it's Cox. . . Cox knew how to get people out of here! . . . Cox! . . ."); he's with Betty Grissom angry about not staying at Holiday Inn ("Now. . . they truly owed her"); and, in a crude hatchet-job, he's with John Glenn furious at Al Shepard's being chosen for the first flight, pontificating to the others about their licentious behavior, or holding onto his self-image during his flight ("Oh, yes! I've been here before! And I am immune! I don't get into corners I can't get out of! . . . The Presbyterian Pilot was not about to foul up. His pipeline to dear Lord could not be clearer"). Certainly there's much here that Wolfe is quite right about, much that people will be interested in hearing: the P-R whitewash of Grissom's foul-up, the Life magazine excesses, the inter-astronaut tensions. And, for those who want to give Wolfe the benefit of the doubt throughout, there are emotional reconstructions that are juicily shrill.
But most readers outside the slick urban Wolfe orbit will find credibility fatally undermined by the self-indulgent digressions, the stylistic excesses, and the broadly satiric, anti-All-American stance; and, though The Right Stuff has enough energy, sass, and dirt to attract an audience, it mostly suggests that until Wolfe can put his subject first and his preening writing-persona second, he probably won't be a convincing chronicler of anything much weightier than radical chic.
Pub Date: Sept. 24, 1979
ISBN: 0312427565
Page Count: 370
Publisher: Farrar, Straus and Giroux
Review Posted Online: Oct. 13, 2011
Kirkus Reviews Issue: Sept. 1, 1979
BOOK TO SCREEN
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