01:830:311 Lecture Notes - Lecture 2: Interstimulus Interval, Disinhibition, Eyelid
Document Summary
Pavlovian conditioning: foundations #3: unconditioned stimulus (us, stimulus that naturally triggers a response, stimulus that elicits a particular response without the necessity of training, eg. Puff of air (us) eye eye blink: unconditioned response (ur, unlearned, natural response to the us, a response that occurs to a stimulus without the necessity of prior training, eg. Cs-us pairings: cr gradually appears and increases in strength, asymptote, the stable maximum level of conditioning responding that is gradually approached, measured in percent crs. Influenced by size/intensity of us: direct relationship: stronger us, higher asymptote, note: us intensity also influences length of acquisition phase, extinction, passage of ti(cid:373)e does (cid:374)ot (cid:272)ause a(cid:374)i(cid:373)als to (cid:862)forget(cid:863) to produ(cid:272)e the. Is conditioning permanent: no, repeatedly present cs without the us, will eventually lose cr, eg. Intertribal interval- time from end of one conditioning trial to the start of the next trial.
