These are excerpts and elaborations from my book "The Nature of Consciousness"
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The Prehistory Of Mind The British archeologist
Steven Mithen found evidence in ancient history that "cognitive
fluidity" caused the modern mind to arise. First came social
intelligence, the ability to deal with other humans; then came natural-history
intelligence, the ability to deal with the environment, and tool-using
intelligence; last, language. Once the ability to fully connect all these
faculties developed, the modern mind was born. Crucial for the development of
the human mind was language. In particular, metaphor and analogy are the
fundamental features that allowed the human mind to develop as it is. Homo Sapiens Sapiens
appeared 100,000 years ago and initially behaved like Neanderthals, showing
little intelligence. Two momentous transformations in human behavior occurred
with art and technology (60,000 years ago) and with farming (10,000 years ago).
In order to explain these
breakthroughs, Mithen resorts to Jerry Fodor's modular model of the mind. Initially, human minds were dominated by
a general-purpose form of intelligence. Then a module appeared that was
specialized for socializing. The social-intelligence module was shared with
other primates so it must have predated humans. Then other modules, each
specific to one domain, were born
around the main general-purpose module. The modules evolved separately.
Eventually, Mithen admits four types of intelligence (four modules in the
mind): social, technical (tool-making, house building), natural-history (e.g., animal behavior) and
linguistic. These modules were not connected, these intelligences were not
communicating. Mithen can thus explain why there is
no archeological evidence of social life when (judging from brain size) social intelligence
must have been already quite developed: a cognitive barrier between social and
technical intelligence made it impossible for humans to conceive of tools for
social interaction. Originally, humans were hunters and gatherers (the
transition to farming occurred in the Middle East only about 10,000 years ago).
The hunter-gatherers of our pre-history were experts in many domains, but those
different kinds of expertise did not mix, precisely because the minds of those
humans could not mix different types of intelligence. "Cognitive
fluidity" (mixing different kinds of intelligence) changed that and caused
the cultural explosion of art, technology, religion. Suddenly, humans acquired
minds in which modules had been connected. For example, tools started being
used to transform nature. Religion was a by-product of mixing these
intelligences, because mixing intelligences one can produce supernatural
beings. Farming was also a product
of cognitive fluidity and in turn caused a redefining of intelligences (emergence
of new intelligences, disappearance of old ones). The factor that contributed
or caused cognitive fluidity may have been the dawning of consciousness.
Self-awareness may have integrated intelligences that for thousands of years
had been kept separate. Mithen's evolutionary theory mirrors in many ways the theory of child
development advanced by British psychologist Annette Karmiloff-Smith. The US biologist Louis Liebenberg argues that our symbolic reasoning is the consequence of having to track game animals. Hunters had to anticipate and predict the moves of the animals that they were hunting. That was the beginning of scientific theorizing based on hypotheses. The hunter then has to simulate in his own mind what the animal will do, i.e. he needs to form a "theory of mind". Liebenberg thinks that hunting created the foundations for human cognitive skills that eventually led to scientific reasoning. Back to the beginning of the chapter "A History of Consciousness" | Back to the index of all chapters |
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