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The Symbolic Species: The Co-evolution of Language and the Brain
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"A work of enormous breadth, likely to pleasantly surprise both general readers and experts."―New York Times Book Review
This revolutionary book provides fresh answers to long-standing questions of human origins and consciousness. Drawing on his breakthrough research in comparative neuroscience, Terrence Deacon offers a wealth of insights into the significance of symbolic thinking: from the co-evolutionary exchange between language and brains over two million years of hominid evolution to the ethical repercussions that followed man's newfound access to other people's thoughts and emotions.Informing these insights is a new understanding of how Darwinian processes underlie the brain's development and function as well as its evolution. In contrast to much contemporary neuroscience that treats the brain as no more or less than a computer, Deacon provides a new clarity of vision into the mechanism of mind. It injects a renewed sense of adventure into the experience of being human.
- ISBN-100393317544
- ISBN-13978-0393317541
- PublisherW. W. Norton & Company
- Publication dateApril 17, 1998
- LanguageEnglish
- Dimensions6.2 x 1.3 x 9.2 inches
- Print length528 pages
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The Language Instinct: How the Mind Creates Language (Harper Perennial Modern Classics)Paperback
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― David Pilbeam, Professor of Anthropology, Harvard University
"Essential reading for anyone interested in what makes us human."
― Merlin Donald, Professor of Psychology, Queens University, Ontario
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- Publisher : W. W. Norton & Company (April 17, 1998)
- Language : English
- Paperback : 528 pages
- ISBN-10 : 0393317544
- ISBN-13 : 978-0393317541
- Item Weight : 1.55 pounds
- Dimensions : 6.2 x 1.3 x 9.2 inches
- Best Sellers Rank: #513,750 in Books (See Top 100 in Books)
- #568 in Communication Reference (Books)
- #908 in Linguistics Reference
- #1,717 in History & Philosophy of Science (Books)
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This is a good book for students to read, because of how it touches on a number of concepts and shows an interrelation between all things - structure of the brain, structure of the body, and the demand of skills on both. The book has a definite narrative flow, and has a lively writing style that still engages attention while reading. Despite this, it's important that you be interested in the subject before reading it - there are easier ways to get into this topic than this book.
In the first part, Deacon starts to explain what language is. This is the kind of sentence you're going to see a lot of in this first section - "For the Boy Who Cried Wolf, in the fable of the same name, the indexical function of his use of the word `wolf' fails because of its lack of association with real wolves, even though the symbolic reference remains."
For readers who are unused to technical or philosophical papers, this part can be daunting because of his need to define a vocabulary - for example, the difference between an icon, an index, and a symbol. He then sets up a working definition of language that excludes animal communication and even some human communications (laughter and sobbing are nonlinguistic), but can include such things as rituals, games, and mathematical expressions. He stops to address the question of how children so easily learn language at a time in their life where they are so poor at learning other things - addressing Chomsky's theory ("the language organ"), before advancing a counter-theory; the possibility of language evolving, in the sense of Dawkin's memes, to meet the expectations of children. I found this theory, and his justification of it, interesting enough to warrant the book on its own. By the end of this part of the book, your mind is full of definitions, and questions have been answered that you didn't even know you were going to ask.
The next part is anatomy and neuroscience. Reading here is more of the caliber of "Mouse embryos lacking a working copy of [the Lim1 gene] fail to develop heads altogether, though most of the postcranial structures develop relatively normally."
Deacon makes the point that there is no simple answer to how brain size relates to intelligence - huge brains in elephants are outwitted by mere people, and the brain/mass ratio backup theory points to hamsters as superhuman intellects. Unfortunately, he then belabors this point for the next chapter. In the middle of this section of the book, there's an interesting throwback to the first section - while earlier it was asserted that animals don't have languages, this part provides a strong case for why, for many animals, spoken language is simply not possible. This part, to me, seemed more stable than the next part, which relied on brain compartmentation for the theories to work. Here, it was why animals can't learn languages and we can, explained by our adapted prefrontal cortex. Later on in the book, speaking about aphasias, he makes the point that there is no unified "language area" in the brain, but many areas that are involved in language production - this undermines his case a little with why our prefrontal cortex was the key to language's neural feasibility. There is a lot of good information in this section about the development of the brain, both in the evolutionary and maturation senses. Although the subject also requires a specialized vocabulary, the book explains it as simply as it can, and this section in particular is replete with helpful diagrams.
The final part of the book is the most philosophical, and the least evidence-backed, of the three. Here, the mood is more set by this: "Whether or not it will be viewed in future hindsight as progress or just another short-term, irreversible, self-undermining trend in hominid evolution cannot yet be predicted."
This part of the book swings from a stable-looking theory about why we as a species needed language to an unfortunate dalliance with the Chinese Room question. This is the most straightforwardly worded section of the book, requiring the least new vocabulary for new concepts, but I came out wondering how necessary this part was. Why humans are such strange animals is an interesting question, and the advent of language makes a lot of sense for why our society is so structured, but this was addressed in greater detail in Diamond's "The Third Chimpanzee." The first half of this section might make a good starting-off point for further reading, addressing such diverse topics as Baldwinian evolution, the reasons for European colonial dominance, and even the African Pygmy culture. The latter half moved away into solipsism, and maybe that appeals to you, but I found it to be muddy reading.
A lengthy footnote section follows the main text of the book, so readers might want to keep a bookmark back there to facilitate the flipping back and forth to catch all the content. If you miss out, it doesn't hurt overall comprehension of the book, but it is interesting content all the same. Further, despite the unassuming appearance, this is a book that you'll want to read with a highlighter, or notepad, close to hand, and there are parts that will require some rereading before you absorb all of the information in it. With regard to the illustrations, the more concrete the subject is, the easier the diagram will be to understand - in particular, diagrams explaining the difference between symbols and icons are difficult to understand.
This book reminded me a lot of "Guns, Germs, and Steel" in its work to synthesize many disparate pieces of information into something, and like GG&S, I think it succeeded in that endeavor. There are parts of it that are unclear or leaps in logic, but that comes from the condensing of subject into this book. Take it with a grain of salt, like you would any book that purported to explain how the brain works, but I would definitely recommend you read it.
Two puzzles in the evolution of language are explained by Terence Deacon in The Symbolic Species (1997). Why does symbolic communication seem easy for humans yet almost impossible for other animals? And how and why did language develop in its original milieu of small hunter-gatherer bands? Deacon believes the brain tripled in size because it co-evolved with language for the sake of symbolic communication.
Deacon’s section on language raises a puzzle: why do no animals use a simple language? Animals don’t have language because even a simple language requires the use of symbols, one word (or gesture) standing for another. Symbols seem easy for humans but are extremely difficult for other animals. Deacon then describes the enormous complexities of the human brain. But this leads to the other puzzle: how and why did this complex brain evolve in its original hunter-gatherer milieu?
Deacon’s answer is that language co-evolved with the human brain specifically to foster symbolic communication. And symbolic communication was caused by the unique challenges of a bipedal lifestyle, especially sexual selection. Bipedalism forced hominids to live in cooperative groups for scavenging, hunting and defense against predators. Meat from large prey had to be shared, but sharing food does not come easily to any animal. And life on the ground in a multi-male multi-female group was very different from life in the trees. This new lifestyle caused physical changes, such as the loss of estrus, loss of hair, face-to-face intercourse, and female orgasm. It also created other challenges. Who mates with whom? Who rears and protects children? What dominance hierarchies will exist, if any? Deacon points out three consistent facts about human reproduction today: 1) both males and females usually assist in child-rearing; 2) a great majority of adults are pair-bonded to a member of the opposite sex; 3) these exclusive sexual relationships are maintained within a multi-male and multi-female social group. However, this social structure was unprecedented. It required new behaviors and better methods of communication. For pair-bonded adults, the selection of the fittest partner for an extended relationship of child-raising became critical for genetic success and encouraged more sharing of information about potential partners. Meat-sharing required reciprocity and the remembering of the past behavior of individuals to detect and control cheaters. These new communication needs for information about individuals were created by bipedalism and led to a new mode of communication by symbols, i.e., language.
Deacon offers convincing explanations of these two puzzles in the evolution of language.
The major theme of this book is: our traditional way of looking at the mind-language relationship is not necessarily true. The author talks about how this book was written from his experiences giving a talk at his child's school during career day. He is asked whether animals have a simple language and admitted that he didn't know how to answer the kid's question. His book probes into that idea. What is the difference between animals and humans in language ability? How come apes can develop some symbolic manipulation, and yet cannot maintain it? Why is it that a young ape learns language at a much quicker rate? These questions are posed in the beginning of the book. He then moves on to intelligence and human brain encephalization, as well as brain size and the ratio between brain and body. The section on intelligence and the brain brought up a lot of complex ideas behind intelligence. Why does a rat, whose brain/body ratio is quite high, not have the same intelligence as a human? And why do humans have a higher brain/body ratio than elephants? Such questions reach the corner of evolutionary, epistemological, and psychological thought.
I'm still in the middle of the book. And I'll be continuing to look into this gem of a text. Has been inspiring a lot of good ideas.
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Reviewed in Germany 🇩🇪 on April 9, 2022
behandeln wird keine umfassende Erklärung zu den Abläufen von Gehirn und Sprache geboten. Es fehlt der Geist.
In der Philosophie wird hier in Geist und Materie differenziert.
Da die Sprache komplex ist wird das Erlernen einer Sprache zu einem Mysterium, wenn man sich auf das physische Gehirn beschränkt.
Das Buch enthält viele gute informative Erklärungen zu den Abläufen, es fehlt jedoch eine einheitliche Erklärung. Wenn man vom
Gehirnvolumen zur Körpergröße spricht stellt sich die Frage, wie die Ameisen per Gehirn den Tagesablauf managen.
Zudem finde ich es blöd, wenn man Schweinegehirne mit Rattengehirnen vermischt und Auswirkungen auf die Spezialisierung
der Gehirnzellen untersucht.
Was fehlt ist auch der Einfluss von Drogen auf das Gehirn. Oder kann man im Gehirn eines Professors einen Nachweis über einen
speziellen effizienten Aufbau finden gegenüber einem "Dummen"?
Im Gesamtblick könnte das Buch kürzer sein, es bietet jedoch etliche neuere Ideen der Gehirnforschung.
Enjoy at daytime or under a strong light!




