PSYC 2330 Lecture 12: Principles of Learning
12 Dec 2015
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Document Summary
Responses mediated by the somatic nervous system can make the cr very complex hard to predict. Central motivational state: central fear state (aversive stimulus) activated by cs, creates cr. Cs+ = fear behaviours, cs- = opposite of all behaviours. Instrumental avoidance behaviour learned behaviours: central appetitive state pleasurable, approach, cs+ = appetitive. Instrumental appetitive behaviours learned behaviours, eating, drinking, sexual behaviour. For responses mediated by the autonomic nervous system, the cr can be: Identical to the ur (blink) o: opposite to the ur. They only occur in one form: more difficult to predict those controlled by homeostasis behaviours, Hedonic scale hedonic stimulus = pleasurable stimulus. The positive peak decays even if the level of the substrate in the brain remains the same: cause is unknown in this graph. Steady level is when the drug becomes metabolized and used by the body.
