Term
| antecedent stimulus class |
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Definition
| A set of stimuli that share a common relationship. All stimuli in this class evoke the same operant behavior, or elicit the same respondent behavior. |
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Term
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Definition
| 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 (e.g. peanuts, cheese, coconut milk, and chicken breasts are members of an arbitrary stimulus class if they evoke the response "sources of protein") |
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Term
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Definition
| A complex example of stimulus control that requires stimulus generalization within a class of stimuli and discrimination between classes of stimuli. |
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Term
| discriminative stimulus (sD) |
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Definition
| 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. |
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Term
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Definition
| Stimuli that share common physical forms or structures (e.g., made from wood, four legs, round, blue) or common relative relationships (e.g., bigger than, hotter than, higher than, next to). |
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Term
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Definition
| A procedure for investigating conditional relations and stimulus equivalence. A matching-to-sample trial begins with the participant making a response that presents or reveals the sample stimulus; next, the sample stimulus may or may not be removed, and two or more comparison stimuli are presented. The participant then selects one of the comparison stimuli. Responses that select a comparison stimulus that matches the sample stimulus are reinforced,and no reinforcement is provided for responses selecting the nonmatching comparison stimuli. |
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Term
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Definition
| A type of stimulus-to-stimulus relation in which the learner, without any prior training or reinforcement for doing so, selects a comparison stimulus that is the same as the sample stimulus (e.g., A=A) |
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Definition
| A situation in which the frequency, latency, duration, or amplitude of a behavior is altered by the presence or absence of an antecedent stimulus. |
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Term
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Definition
| A stimulus in the presence of which a given behavior has not produced reinforcement in the past. |
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Term
| stimulus discrimination training |
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Definition
| The conventional procedure requires one behavior and two antecedent stimulus conditions. Responses are reinforced in the presence of one stimulus condition, the sD, but not int he presence of the other stimulus, the s^. |
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Term
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Definition
| The emergence of accurate responding to untrained and nonreinforced stimulus-stimulus relations following the reinforcement of responses to some stimulus-stimulus relations. A positive demonstration of reflexivity, symmetry, and transitivity is necessary to meet the definition of stimulus equivalence. |
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Term
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Definition
| 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. |
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Term
| stimulus generalization gradient |
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Definition
| A graphic depiction of the extent to which behavior that has been reinforced in the presence of a specific stimulus condition is emitted in the presence of other stimuli. It shows relative degree of stimulus generalization and stimulus control (or discrimination). |
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Term
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Definition
| A type of stimulus-to-stimulus relationship in which the learner, without prior training or reinforcement for doing so, demonstrates the reversibility of matched sample and comparison stimuli (e.g., if A = B, then B = A). |
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Term
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Definition
| A derived (i.e., untrained) stimulus-stimulus relation (e.g., A = C, C = A) that emerges as a product of training two other stimulus-stimulus relations (e.g., A = B, and B = C) |
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Definition
| A _____ across test stimuli shows a high degree of stimulus generalization and relatively little discrimination between the trained stimulus and other stimuli. |
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Definition
| A slope that _____ from its highest point corresponding to the trained stimulus indicates a high degree of stimulus control (discrimination) and relatively little stimulus generalization. |
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