PSYC 1 MIDTERM 1 NOTES - Week 1: Learning - Learning in the...

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Week 1:  Learning - Learning in the behaviorist framework   behaviorism:  science should avoid terms that refer to mental entities (thoughts, emotions,  motives) b/c can’t be directly observed - psych should focus on relationship b/w observable events in the enviro (stimuli) and observable  behavioral rxns (responses) - princ. founder – John B.  Watson – behavior is reflex-like in nature - mental processes too obscure to be scientifically studied - learning/conditioning = main concept – behavior determ. by past experiences - Reflexes and habituation   reflex:  simple, rel automatic, stimulus-response sequence mediated by NS - messages carried by nerves to cause muscle/gland response - b/c moderated by NS, can be affected by experience habituation:  decline in magnitude of reflexive response when stim. repeated successively - ex: response to balloon popping - one of simplest forms of learning – no new response; only weakens existing  stimulus:  particular well-defined event in the enviro (ex: tap on knee) response:  result of stimulus; well-defined bit of behavior (ex: leg jerk) - Classical conditioning - Pavlov demonstrated  classical conditioning:  form of reflex learning that produces a new  stimulus-response sequence; has to do with formation of new reflexes - studies on digestive reflexes in dogs – collecting salivary/stomach juices - dogs who received food b4 salivated before receiving any food in another trial ~ “psychic secretion” - controlled signals that preceded food in next experiment (ex: using a bell b4 giving food) conditioned reflex:  depends on unique cond. present in dog’s prev. experience - ex: pairing of bell sound w/ food-in-mouth stimulus conditioned stimulus:  stimulus in a conditioned reflex (ex: bell sound) conditioned response:   learned responses (ex: salivation) unconditioned reflex:  original, unlearned reflex w/  UCS  and  UCR   extinction:  not paired w/ unconditional food-in-mouth stimulus) - does not return animal fully to UC state spontanteous recovery:  passage of time following an extinction can partially renew the  conditioned reflex - single pairing of CS w/ UCS can fully renew conditioned reflex again + cond. reflex not lost during extinction, but inhibited   generalization:  after conditioning, animals show CR not just to orig. cond. stimulus, but also to  new stimuli that resembled the stimulus - magnitude of response depended on similarity b/w new & orig. stimuli
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This test prep was uploaded on 04/11/2008 for the course PSYC 1 taught by Professor Stuartantsis during the Spring '08 term at UCSD.

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PSYC 1 MIDTERM 1 NOTES - Week 1: Learning - Learning in the...

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