Psychology 1000 Lecture Notes - Lecture 7: Bullet Time, University Of Manchester, Action Potential

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Mike Atkinson

Document Summary

Moves down the axon through opening channels of ions. Turns to action potential at the axon. Proportional to frequency of firing: maximum frequency, limited by absolute refractory period. Herri(cid:374)gto(cid:374)"s e(cid:454)peri(cid:373)e(cid:374)t: observing dog reflex time, expected latency: 10 msec, actual latency: 100 msec, slowed down by space between neurons called synapse. Norepinephrine (ne: function: inhibitory & excitatory, related to: arousal, eating, medical conditions: depression (low levels) Acetycholine (ach: function: excitatory & inhibitory, related to: memory, motor, behavioural inhibition, medical conditions: alzheimer"s. Dopamine (da: function: inhibitory & excitatory, related to: voluntary movement, arousal, pleasure, medical condition: depression (low levels) schizophrenic (high levels) Serotonin (5-ht: function: inhibitory & excitatory, related to: sleep, thermoregulation, medical condition: depression. Gamma aminobutyric acid (gaba: function: inhibitory, related to: motor behaviour. Novocaine: only drug to prevent action potential. Marijuana (thc: binds to natural cannabinoid receptors (anandamide, stimulates release of da by blocking gaba modulator.