PSYCH101 Lecture : Sensation Jan 29.pdf

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH101
• Professor: Richard Ennis

Document Summary

Only neuronal dendrites outside of body and axons go directly to brain -> nasal. Sensory neurons replenished or replaced every month or two -> nasal. Sense that existed 100 million yrs before others -> smell. 13 written same sensation, perception can change. To impart meaning- put into context (12, 13, 14 vs abc) Smell not needed for survival as much now, more recreational so more directed to sight or hearing. Can smell difference between diff types of mice. Thalmus- relay station, like reception desk -> directing. Vision -> thalamus (identifies as visual) -> optic centre. Hearing (sound waves) -> thalamus -> auditory cortex. Taste -> thalamus -> various regions of brain. Touch (temp, pressure, pain) -> thalamus -> . Limbic system-> several parts of brain, all mammals have, primitive part of brain, near brain stem. Amygdala -> linked to emotion, not only part eg. probe in cat. Hippocampus -> linked to memory , essential for storing memory, not only part.