ibid asked in Science & MathematicsBiology · 1 decade ago

What is the physiological explanation for 'intelligence'?

I used to study the process of cephalization in different species from various phylas. There was also a unit I covered over the anatomy of the brain and its various roles in coordinating the endocrine and nervous systems. The only difference between humans and the rest of the animals is our rather superior intelligence.

What constitutes this intelligence? There are animals with obviously larger brains than ours but they lack the cognitive faculty. How was it possible for humans to develop intelligence so quickly?

What is the physiological explanation as to how a brain can exhibit 'intelligence' (if its even possible to define it)?

(An explanation on the molecular and systematic level would be appreciated)

1 Answer

  • 1 decade ago
    Favorite Answer

    The answer to this riddle is that humans are the only species with a well developed frontal lobe. The other parts of the brain are necessary and function in much the same way in other mammals that do not seem to possess the intelligence that you are refering to. The other parts of the brain: the cerebellum, the brainstem and the diencephalon are all present in other animal species. The cortex which is highly convoluted in humans, allow us the following abilities:

    1) speech and language

    2) the dexterity to manipulate tools

    3) reasoning power

    4) ability to perceive, calculate and anticipate time (in our daily lives)

    5) The ability for (some of) us to control and override our emotions and fears allowing logic to govern our actions rather than impulsiveness

    6) To develop ambitions and goals that will allow us to integrate the above characteristics toward an accomplishment.

    7) The ability to compare different objects, ideas,and make decisions based on these comparisons

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