"Page0043" - читать интересную книгу автора (Bloom Howard - The Lucifer Principle (htm))5 5 5 o rganization to take care of these suckling clusters of mammal mamas and kids. All this demanded that a few additions be built onto the old reptilian brain. Nature complied by constructing an envelope of new neural tissue. That tissue surrounded the reptile brain like a peach's juicy fruit enveloping the pit. MacLean called the add-on the mammalian brain. The mammalian brain guided play, maternal behavior, and a host of other emotions. It kept our furry ancestors knitted together in nurturing gangs. Far down the winding path of time, a few of our fuzzy pro- genitors tried something new. They stood on their hind legs, looked around them, and applied their minds and hands to the exploitation of the world. These were the early humans. But proto-human aspirations were impractical without the construction of another set of add-ons to the brain. Nature complied, wrapping a thin layer of fresh neural substance around the two old cortical standbys--the reptilian and mammalian brains. The new structure, stretched around the old ones like a peach's skin, was the neo-cortex--the primate brain. The primate brain--including the human brain--had some awesome powers. It could envision the future. It could weigh a possible action and imagine the consequences. It could support the development of language, reason and culture.9 But the neo-cortex had a drawback. It was merely a thin veneer on the two ancient brains. And those oldsters were as active as ever, measuring every bit of input from the eyes and ears, and issuing fresh orders. The thinking human, no matter how exalted his sentiments, was still listening to the voices of a demanding reptile and a chattering ancient mammal. Both were speaking to him from the depths of his own skull. Richard Leakey, the eminent paleoanthropologist, says war didn't exist until men invented agriculture and began to acquire possessions. In the back of Leakey's mind, one hears a wistful prayer 5 5 5 o rganization to take care of these suckling clusters of mammal mamas and kids. All this demanded that a few additions be built onto the old reptilian brain. Nature complied by constructing an envelope of new neural tissue. That tissue surrounded the reptile brain like a peach's juicy fruit enveloping the pit. MacLean called the add-on the mammalian brain. The mammalian brain guided play, maternal behavior, and a host of other emotions. It kept our furry ancestors knitted together in nurturing gangs. Far down the winding path of time, a few of our fuzzy pro- genitors tried something new. They stood on their hind legs, looked around them, and applied their minds and hands to the exploitation of the world. These were the early humans. But proto-human aspirations were impractical without the construction of another set of add-ons to the brain. Nature complied, wrapping a thin layer of fresh neural substance around the two old cortical standbys--the reptilian and mammalian brains. The new structure, stretched around the old ones like a peach's skin, was the neo-cortex--the primate brain. The primate brain--including the human brain--had some awesome powers. It could envision the future. It could weigh a possible action and imagine the consequences. It could support the development of language, reason and culture.9 But the neo-cortex had a drawback. It was merely a thin veneer on the two ancient brains. And those oldsters were as active as ever, measuring every bit of input from the eyes and ears, and issuing fresh orders. The thinking human, no matter how exalted his sentiments, was still listening to the voices of a demanding reptile and a chattering ancient mammal. Both were speaking to him from the depths of his own skull. Richard Leakey, the eminent paleoanthropologist, says war didn't exist until men invented agriculture and began to acquire possessions. In the back of Leakey's mind, one hears a wistful prayer |
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