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Chapter All Chapters

PSYC 169 Chapter Notes - Chapter All Chapters: Simultanagnosia, Agnosia, Cerebral Achromatopsia


Department
Psychology
Course Code
PSYC 169
Professor
Vilayanur Ramachandran
Chapter
All Chapters

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Textbook: Illusions of the Brain Review Notes
Peripheral Nervous System carries information from around the body, back to the
central nervous system, where it is processed, and information is sent back out to the
effectors.
PNS can regenerate if damaged, while CNS cannot regenerate. Damage is structurally
permanent.
Locked-in Syndrome: stroke in brain stem disconnects brain from body… full awareness,
but cannot move. (maybe eye movement)
Cerebellum: muscle balance, damage = jerky movements, intention tremor (tremors
when deliberate movement made), loss of balance/position. Fall over without visual
feedback.
Thalamus: sensation, parkinson's damage.
Hypothalamus: fight or flight, sexual behavior, eating drinking sleeping waking.
CORTEX
Primary cortex: primary sensory and motor regions, high degree of localization: flash of
light, touch on arm, hearing a particular tone. Discrete body movements
Secondary Cortex: vivid visual scene, arm touched by velvet, hears melody. Secondary is
important in interpreting sensations received in primary cortex and turning them into
perception.
Tertiary Cortex: association cortex… not much known.
Conclusion:
o 4 main areas of brain
Brainstem: input from special sense, deals with vital processes
Cerebellum: coordination of muscle activity
Diencephalon: central control of sensation and movement, motivation,
emotion, awareness.
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