A Case History on Shaping Technique Development: Dynamic Stimulus Control Shaping

Kawasaki, Hindira Naomi; Ferreira, Mayara da Silva; Rose, Felipe Santana de; Postalli, Lidia Maria Marson; Garcia, Lucas Tadeu; Souza, Deisy das Graças de; McIlvane, William J.

doi:10.1007/s40732-020-00426-x

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“…McIlvane et al, 2016). Instead of gradually transforming stimuli from those already discriminated to those to be discriminated at the final performance (e.g., Brino et al, 2011; Kawasaki et al, 2021), PSPs feature the gradual incorporation of new stimuli to be discriminated stimuli in contexts where similar stimuli have been previously discriminated (e.g., our substitution of novel stimuli for either the S+ or the S‐). Such procedures are intended to provide the behavioral prerequisites for success when further stimuli are substituted in that context, as we achieved with the BC in our study.…”

Section: Discussionmentioning

confidence: 99%

Effective use of the blank comparison procedure in simple discrimination by infant capuchin monkeys: A methodological note

Jiménez

Brino

Goulart

et al. 2021

J Exper Analysis Behavior

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In studies of simple and conditional discrimination, procedures are needed to measure those aspects of stimuli that control behavior. The blank comparison procedure is one such procedure. It was designed explicitly for assessing S+ and S‐ functions when discriminative stimuli are presented simultaneously. In this procedure, a neutral stimulus serves sometimes as S+ and sometimes as S‐. Its discriminative function is defined in relation to other stimuli in the display. The present study aimed to prepare 2 infant female capuchin monkeys for the effective use of the blank comparison procedure in a simple discrimination task. First, simple discrimination training was applied up to a stable accuracy criterion of ≥90%. This training was followed by the replacement of S+ and then of S‐ stimuli with new stimuli. Ultimately, trials with the blank comparison were introduced. Following this sequence, both monkeys immediately displayed highly accurate blank‐comparison performances without the need for stimulus control shaping or other preparatory discrimination training. Thus, this procedure sequence may be an efficient, effective method for establishing blank‐comparison baselines for experimental analyses of S+/S‐ discriminative functions and perhaps for other applications in teaching simple and conditional discrimination performances to this species and others.

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Section: Discussionmentioning

confidence: 99%