Chapter 17: Stimulus Control Flashcards
a set of stimuli that share a common relationship. All stimuli in an antecedent stimulus class evoke the same operant behavior or elicit the same respondent behavior
Antecedent stimulus class
antecedent stimuli that evoke the same response but do not resemble each other in physical form or share a relational aspect such as bigger or under (eg. peanuts,cheese milk, chicken- all protein)
Arbitrary stimulus class
a complex example of stimlusu control that requires stimlusu generalization within a class of stimuli and discrimination between classees of stimuli
Concept formation
a stimulus in the presence of which responses of some type have been reinforced and in the absence of which the same type of responses have occurred and not been reinforced. This history of differential reinforcement is the reason an Sd increases the momentary frequency of a behavior
Discriminative stimulus (Sd)
stimuli that share common physical forms or structures (eg made from wood, four legs, round blue ) or common relative relationships (eg bigger than, hotter than, higher than, next to)
Feature stimulus class
a procedure for investigating conditional relations and stimulus equivalence. A match-to-sample trial begins with the participant making a response that presents or reveals the sample stimulus, next the sample stim may or may not be removed and two or more comparison stimuli are presented. The participant that selects one of the comparison stimuli. Responses tha select a comparison stimulus that matches the sample stimulus are reinforced and no reinforcement is provided for responses selecting the nonmatching comparison
Matching-to-sample-
- a type of stimulus to stimulus relation in which the learner without any prior training or R+ for doing so selects a comparison stimuli that is the same as the sample stime (A=A) reflexivity would be demonstrated in the following match to sample procedure: the sample stimi is a picture of a tree and the tree comparison stim are a picture of a mouse, cookie and tree the learner selects the tree without specific R+ in the past to pick the tree
Reflexivity-
a situation in which the frequency, latency , duration or amplitude of a behavior is altered by the presence or absence of an antecedent stimulus
Stimulus control-
a stimulus in the presence of which is given behavior has not produced R+ in the past
Stimulus delta (S^)
the conventional procedure requires one behaiovr and two antecedent stimulus conditions. Responses are reinforced in the presence of one stimulus condition, the Sd but not in the presence of the other stimulus (S^)
Stimlusus discrimination training
the emergence of accurate responding to untrained and nonreinforced stimulus-stimulus relations following the R+ of responses to some stimulus- stimulus relations. A positive demonstration of reflexivity, symmetry, and transitivity is necessary to meet the definition of equivalence
Stimulus equivalence
when an antecedent stimulus has a history of evoking a response that has been reinforced in its presence, the same type of behavior tends to be evoked by stimuli that share similar physical properties with the controlling antecedent stimulus
Stimulus generalization
a graphic depiction of the extent to which behavior that has been reinforced in the presence of a specific condition is emitted in the presence of other stimuli. The gradient shows relative degree of stimulus generalization and stim control or (discrimination) a flat slope across test stim shoes a high degree of stim generalization and relatively little discrimination btwn the trained stim and other stim. A slop that drops sharply from it highest point corresponding to the trained stim indications a high degree of stim control and relatively little generalization
Stimulus generalization gradient
a type of stim to stim relationship in which the learner without prior training or R+ for doing so demonstrates the reversibility of mts and comparison sample (id A=B then B=A)
Symmetry
a derived (ie untrained) stim-stim relation (if A=C, C=A) that emerges as a product of training two other stim-stim relations (A=B and B=C) for example: training the two stim-stim relations in 1 and 2 and then 3 occurs 1. If spoken word bike= picture of bike 2. Picture of bike= written word bike 3. Spoken word bike = written word bike
Transitivity