The Biological Basis of Behavior

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The Biological Basis of Behavior
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Phineas Gage
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NEURON
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Impulses are carried By an electro-chemical
process.
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Chapter 3 Sensation and Perception
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Psychophysics The magnitude of stimulus
strength when a stimulus is strong enough to be
detected 50 percent of the time is called the
absolute threshold.
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• For different kinds of sensations, different
  kinds of receptor cells Vision rod and cone
  cells of the eye's retina are specialized to
  respond to the electromagnetic radiation of
  light.
• Hearing the ear's receptor neurons are topped by
  hair bundles that move in response to the
  vibrations of sound.
• Smell olfactory neurons at the back of the nose
  respond to odorant chemicals that bind to them.
• Taste receptor cells on the tongue and the back
  of the mouth respond to chemical substances that
  bind to them.
• Touch Meissner's corpuscles are specialized for
  rapid response to touch, while free nerve endings
  bring sensations of pain.

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Perception

• Organization
• Interpretation

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