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Periódicos indexados 28 fonte(s) com registros ativos
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Acta Comportamentalia
Abrir fonte oficialBehavior Analysis in Practice
Abrir fonte oficialBehavior Analysis: Research and Practice
Abrir fonte oficialBehavior and Social Issues
Abrir fonte oficialBehavioral Development Bulletin
Abrir fonte oficialBehavioral Interventions
Abrir fonte oficialEducation and Treatment of Children
Abrir fonte oficialEuropean Journal of Behavior Analysis
Abrir fonte oficialInternational Journal of Behavioral Consultation and Therapy
Abrir fonte oficialJapanese Journal of Behavior Analysis
Abrir fonte oficialJournal of Applied Behavior Analysis
Abrir fonte oficialJournal of Applied Radical Behavior Analysis
Abrir fonte oficialJournal of Behavior Analysis and Support
Abrir fonte oficialJournal of Behavioral Education
Abrir fonte oficialJournal of Contextual Behavioral Science
Abrir fonte oficialJournal of Organizational Behavior Management
Abrir fonte oficialJournal of Positive Behavior Interventions
Abrir fonte oficialJournal of the Experimental Analysis of Behavior
Abrir fonte oficialNorsk Tidsskrift for Atferdsanalyse / Norwegian Journal of Behavior Analysis
Abrir fonte oficialPerspectivas em Análise do Comportamento
Abrir fonte oficialPerspectives on Behavior Science
Abrir fonte oficialRevista Brasileira de Análise do Comportamento
Abrir fonte oficialRevista Mexicana de Análisis de la Conducta / Mexican Journal of Behavior Analysis
Abrir fonte oficialThe Analysis of Verbal Behavior
Abrir fonte oficialThe Behavior Analyst
Abrir fonte oficialThe Behavior Analyst Today
Abrir fonte oficialThe Journal of Speech and Language Pathology – Applied Behavior Analysis
Abrir fonte oficialThe Psychological Record
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A visual discrimination task involved presenting a triangle briefly as a sample. When it was withdrawn, this triangle and two others differing slightly in degree of rotation were presented in different positions, with S required to locate the sample that had been presented. Discrimination proved difficult for preschool children. When only the correct triangle was illuminated, discrimination was readily established. The brightness difference between correct and incorrect matches was gradually faded out by increasing the intensity of the incorrect matches, until they were equal in brightness to the correct match. The discrimination established by brightness difference was maintained in its absence, thereby transferring stimulus control from brightness to form, in an almost errorless sequence.
Throughout ascending and descending fixed‐ratio (FR) sequences, rats were allowed to terminate the FR stimulus control by pressing a time‐out (TO) lever. To minimize chance or accidental responses on this second lever, three presses were required to produce the 30‐sec SΔ period. As FR performance became more “strained,” there was an increased predisposition to escape from the time‐in stimulus complex. The generality of this finding was extended by obtaining recoverability (independent of the direction of stimulus change) of the FR‐TO function in the descending series. Typically, escapes were produced only during the post‐reinforcement pause; however, under a mixed FR FR schedule, their occurrence shifted to a point within the inter‐reinforcement interval corresponding to the unreinforced completion of the lower ratio component. It appears that the point where the rat can discriminate the size of the ratio requirement will be the place where TOs are imposed. This inference was supported by a substantial increase in TO frequency accompanying a shift from CRF to extinction on the FR lever. Finally, the escape lever was placed on a progressively increasing FR schedule and later extinguished to demonstrate that the TO condition was in fact reinforcing.
Three white rats, after 50 continuous reinforcements, were exposed successively, under dim illumination, to reinforcement delays of 1, 3, 5, 7.5, 10, 15, and 20 sec, with prolonged training at the 20‐sec level. Behavior was maintained at each level, and an increase in interval was accompanied by an increase in post‐reinforcement pause. Subsequently, under both 20‐ and 30‐sec delays, the animals were tested during half of each daily session to determine the effect of introducing darkness during each delay interval. The result of this stimulus “support” was to regularize and increase response rate for each animal at both interval values.
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