Psychology 1000 Lecture Notes - Lecture 3: Afferent Nerve Fiber, Reflex Arc, Pineal Gland

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Stimuli transferred from the periphery to the brain and reflected back. Animal spirits the nerves were filled with invisible gaseous substance that functioned somewhat like hydraulics. Importance of pineal gland descartes thought that was where all of the information was processed and that it was where divine intervention came into play; actually controls hormones. Takes frog leg and connects it to a battery in water see when jerk response happens. Specific nerve energy each nerve has its own identity wrong. M ller attempted to find the speed of action potential. Brought to light that nerve impulses are not instantaneous. Discovered that nerve impulses travel 50 100 meters/second. People respond to stimulus at different times reaction time differs. Axon terminal synaptic knobs: where communication takes place. Nodes of ranvier: what breaks up the myelin sheath where the axon is exposed. Collect information on one end and transmit on the other. Dendrites and terminal branches are on the same branch.