5-9 Flashcards
stimulus control
the relation between a antecedent and the behavior that follows it
the relation between a antecedent and the behavior that follows it
stimulus control
generalization gradients
graph that shows the probability of a response as a function of the stimulus (big upside down U)
graph that shows the probability of a response as a function of the stimulus (big upside down U)
generalization gradient
probe trials
way to measure generalization to other colors (stimuli) in which the other colors are briefly presented to measure the pigeon’s responding but no reinforcer is given.
way to measure generalization to other colors (stimuli) in which the other colors are briefly presented to measure the pigeon’s responding but no reinforcer is given.
probe trials
Pavlov’s hypothesis
beliefs generalization happens through an automatic by-product of the conditioning process. Essentially the effects of conditioning somehow spread across to nearby neurons in the cerebral cortex
beliefs generalization happens through an automatic by-product of the conditioning process. Essentially the effects of conditioning somehow spread across to nearby neurons in the cerebral cortex
Pavlov’s hypothesis
Lashley and Wadd’s hypothesis
explain generalization through some explicit discrimination training along the dimension in question is necessary before the typical peaked generalization gradient is obtained
e.g. if the dimension is color, they would claim that the learner must receive experience in which reinforcer are delivered when a color is present but not when the color is absent
explain generalization through some explicit discrimination training along the dimension in question is necessary before the typical peaked generalization gradient is obtained
Lashley and Wadd’s hypothesis
e.g. if the dimension is color, they would claim that the learner must receive experience in which reinforcer are delivered when a color is present but not when the color is absent
nondifferential training
every trial was the same
e.g. exposure to only 1000 hz tone as the SD
produced generalization gradient that were basically flat
every trial was the same
e.g. exposure to only 1000 hz tone as the SD
produced generalization gradient that were basically flat
nondifferential training
presence-absence training
type of discrimination training in which the presence or absence of a specific stimulus indicates whether responding will be reinforced
e.g. exposure to 1000 hz tone as SD adi no tone as S-delta
type of discrimination training in which the presence or absence of a specific stimulus indicates whether responding will be reinforced
e.g. exposure to 1000 hz tone as SD adi no tone as S-delta
presence-absence training
intradimensional training
type of discrimination training in which responses in the presence of one stimulus are reinforced, but responses in the presence of a different stimulus from the same physical continuum are not reinforced
e.g. exposure to 1000 hz tone as the SD and a variety of tones as S-delta
type of discrimination training in which responses in the presence of one stimulus are reinforced, but responses in the presence of a different stimulus from the same physical continuum are not reinforced
e.g. exposure to 1000 hz tone as the SD and a variety of tones as S-delta
intradimensional training
sensory deprivation
on Lashley and Wade: chickens and quails exposed to a green light that makes everything look green. They previously learned to peck green key. When tested with other colors the birds displayed typical generalization gradients. This contradicts the theory of Lashley and Wade.
on Lashley and Wade: chickens and quails exposed to a green light that makes everything look green. They previously learned to peck green key. When tested with other colors the birds displayed typical generalization gradients. This contradicts the theory of Lashley and Wade.
sensory deprivation
simultaneous discrimination procedure
two stimuli are presented together and the chicken must choose between them
two stimuli are presented together and the chicken must choose between them
simultaneous discrimination procedure
successive discrimination procedure
the stimuli are presented one at a time
the stimuli are presented one at a time
successive discrimination procedure
absolute theory of stimulus control
the animal has simply learned about the two stimuli separates: it has learned that choosing the medium gray color produces food and choosing the dar gray color produces no food
the animal has simply learned about the two stimuli separates: it has learned that choosing the medium gray color produces food and choosing the dar gray color produces no food
absolute theory of stimulus control
relational theory of stimulus control
the animal has learned something about the relationship between the two stimuli: it has learned that the lighter gray is associated with food