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- Title
Dynamic Changes in the Size of Behavioral Contrast.
- Authors
Swindell, Samantha; Mcsweeney, Frances K.; Murphy, Eric S.
- Abstract
McSweeney and Weatherly (1998) suggested that multiple-schedule behavioral contrast may he explained, at least partly, by differences in the amount of habituation to the reinforcer produced during the baseline and contrast phases of a contrast experiment. The present experiment studied behavioral contrast when pigeons pecked keys for food reinforcers delivered on multiple VI VI schedules. The results confirmed two predictions made by McSweeney and Weatherly. Both positive and negative contrast were larger for longer (i.e. 80 mm) than for shorter sessions (i.e. 20 mm). Positive and negative contrast were also larger later, rather than earlier, in the session. These results support the conclusion that factors that weaken the effectiveness of the reinforcer with its repeated delivery (e.g., habituation) may he among the factors contributing to multiple-schedule behavioral contrast.
- Subjects
HABITUATION (Neuropsychology); FOOD; BEHAVIOR; ATTITUDE (Psychology); BEHAVIORISM (Psychology); PSYCHOPHYSIOLOGY
- Publication
Behavior Analyst Today, 2003, Vol 4, Issue 2, p202
- ISSN
1539-4352
- Publication type
Article
- DOI
10.1037/h0100118