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The Human Brain

The Human Brain. Cerebrum. Cerebrum. Corpus Callosum. Hypothalamus. Pituitary.

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The Human Brain

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  1. The Human Brain

  2. Cerebrum

  3. Cerebrum Corpus Callosum Hypothalamus Pituitary

  4. “In the most intelligent races, as among the Parisians, there are a large number of women whose brains are closer in size to those of gorillas than to the most developed male brains. This inferiority is so obvious that no one can contest it for a moment; only its degree is worth discussion.

  5. All psychologists who have studied the intelligence of women, as well as poets and novelists, recognize today that they represent the most inferior forms of human evolution and that they are closer to children and savages than to an adult, civilized man. They excel in fickleness, inconstancy, absence of thought and logic, and incapacity to reason.

  6. Without doubt there exist some distinguished women, very superior to the average man, but they are as exceptional as the birth of any monstrosity, as, for example, of a gorilla with two heads; consequently, we may neglect them entirely.” – Gustave LeBon, 1879Founder of Social Psychology

  7. Morton’s final summary of craqnial capacity by race German, English, Am 92 sq in Semitic 89 Mongolian group 82 Malay group 85 Peruvian, Mexico 79 Barbarous tribes 84 Negro group 83 Australian aborigian 75

  8. Bean’s Plot Length of brain White black Width of brain

  9. Gould used more modern methods • Blind test • Adjust for body size • Adjusted for cause of death • Adjusted for age at death

  10. Mall’s Plot – Steven Jay Gould Length of Brain Width of Brain

  11. Synapse Neurotransmitter

  12. The human brain – Flexible ciruitry 50 billion neurons (chimps have 5.5 billion) Each of these neurons can receive messages from 1,000 other neurons An also send messages to 1,000 other neurons

  13. Brain development after birth Before birth and for 6 months after birth 500,000 new neurons are produced each minute. Brain doubles in size from birth to 1 year Doubles again by age 4 – reaching adult size by 4 or 5.

  14. Ruth Bleier’s Theory of Intelligence Intelligence is a complex entity of: brain behavior mind body environment The parts of this complex are inextricable from one another. The parts and the whole are ceaselessly interacting and changing and carry within themselves the entire history of their interactions.

  15. Back to flexibility of circuitry The functional validity of developing synapses occurs through environmental input as a means by which neurons acquire normal anatomical connections and function. Different experiences will develop different anatomic connections.

  16. Ruth Bleier -Genes cannot encode for all the complex behavior for a species that occupies every possible niche -We learn how we are supposed to be -Culture – values, beliefs, expectations, conformity become known as: HUMAN NATURE

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