Components of Brain Part 2 for IAS

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  • The left cerebral hemisphere contains speech or language “centers” in most people.

  • It also specializes in writing, calculating, judging time and rhythm, and ordering complex Movements.

  • The right hemisphere is largely nonverbal. It excels at spatial and perceptual skills,

Visualization, and recognition of pat- terns, faces, and melodies.

  • The left hemisphere is good at analysis and it processes small details sequentially.

The right hemisphere detects overall patterns; it processes information simultaneously and holistically.

  • “Split brains” can be created by cutting the corpus callosum. The split-brain individual

Shows a remarkable degree of independence between the right and left hemispheres.

  • The most basic functions of the lobes of the cerebral cortex are as follows: frontal lobes-motor control, speech, abstract thought, and sense of self; parietal lobes- bodily sensation; temporal lobes-hearing and language; occipital lobes-vision. Damage to any of these areas will impair the named functions.

  • Primary sensory and motor areas are found on the lobes of the cerebral cortex.

  • Association areas on the cortex are neither sensory nor motor in function. They are related to more complex skills such as language, memory, recognition, and problem solving.

  • Damage to either Broca’s area or Wernicke’s area causes speech and language Problems known as aphasias.

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