Psychology 1000 Lecture 6: Psych 1000 Oct 6 Lecture

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Terry Biggs

Document Summary

Synaptic transmission: occurs only in the cns, occurs instantaneously, does not involve chemical communication, explains the delay in response latency for a reflex arc. Dopamine related to feeling good cocaine results in a high. Blocks receptor sites for ach you"ll be paralyzed but you"re still conscious (die quickly because heart stops beating/you stop breathing) Stimulates release of ach increased movement increases heart rate and breathing rate (heart will explode) Blocks release of ach cannot move, particularly movements related. Stimulates receptor molecules, duplicating effects of ach makes you feel focused and alert. Blocks adenosine receptor sites (adenosine is a neurotransmitter that is involved in making you feel drowsy; blockage makes you feel alert) Drugs can be categorized in two ways: agonist (increase action, antagonist (decreasing action, blocking) Summary of neurons: all neurons fire i. e. generate action potentials all or none, excitatory neurons vs. inhibitory neurons . Intensity coded as frequency: different transmitters, influence of receptor sites.