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The Effects of Shaping and Instruction-based Procedures on Behavioral Variability during Acquisition and ExtinctionMcCary, Donald 12 1900 (has links)
This study examined effects of two response acquisition procedures on topography of responding using the revealed operant technique and compared results to previous experiments on this topic. Subjects emitted 100 repetitions each of 4 response patterns on a continuous schedule of reinforcement. A 30-min extinction condition followed acquisition. One group of subjects learned the first response through a series of shaping steps designed to reduce acquisition variability. Another group of subjects was instructed in the correct response topography and was told there was no penalty for attempting other sequences. The first group of subjects produced high variability during extinction despite reduced variability in acquisition. The second group of subjects responded with moderate to high variability during extinction and little variability during acquisition. Most extinction responses for the first group were variations of the last pattern reinforced. Most extinction responses for the second group were repetitions of the last pattern reinforced.
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Tracking to Pliance: Effects of Punishment on Non-ComplianceHarmon, D. Austin 08 1900 (has links)
Inaccurate instructions have been shown to interfere with or override the effects of otherwise effective behavioral contingencies. This effect may be mediated by such factors as the discriminability of current contingencies, histories with accurate and inaccurate instructions, and consequences associated with following instructions. The current experiment investigated the effects of instructions (both accurate and inaccurate) on response patterns when paired with feedback regarding correspondence between responding and instructions, feedback indicating potential point loss for non-correspondence, and point loss for non-correspondence. Inaccurate instructions produced only small and temporary disruptions in response patterns, as did the addition of feedback alone and feedback indicating potential point loss. The introduction of escalating point losses contingent on non-correspondence, ranging from 20%-50% of points earned, produced changes in response patterns that corresponded to the inaccurate instructions. These outcomes indicate that the imposition of direct consequences for noncompliance may alter the effects of other contingencies. Depending on the point at which point losses disrupt responding, such effects may be interpreted in terms of point loss avoidance or, alternatively, maximizing point gains.
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The Effects of Instructions on Schedule SensitivityButcher, Grayson M 05 1900 (has links)
There are many situations in which human performances appear insensitive to changing contingencies of reinforcement when compared to nonhuman operant performances. Explanations of these discrepancies have appealed to rule-governance and have provided some evidence that instructions produce these differences by restricting response alternatives as well as functioning as discriminative stimuli for other contingencies. In order to further evaluate these potential functions, a canonical study on rule-governance was systematically replicated. Five undergraduate participants were tasked with earning blocks by pressing a button during LED-signaled, fixed-ratio 7 and differential-reinforcement-of-low-rate 5-s schedules of reinforcement. Phase 1 of the experiment switched between these two schedules, with the schedule alternating every 1 minute. Phase 2 added instructions to "Go Fast" and "Go Slow" to the LEDs and programmed the lit LED to switch 30 seconds into each 1-minute session. Phase 3 removed the instructions from the LEDs and returned to the procedures of phase 1, with only one LED lit during each 1-minute session. Results showed that instructions influence the response rates as well as stimulus control over those rates. Results also showed that all participants ignored instructions conflicting with the reinforceable rate by the end of Phase 2. These findings indicate that instances of insensitivity may result from instructions restricting response alternatives and their stimulus control, as opposed to instructions signaling a second contingency. These findings are discussed in terms of the nature of instructional stimulus control, its relation to the operant unit of analysis, and alternative interpretations of other instances of insensitivity.
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Can mindfulness help us ask why, while following a ply? : An experimental study investigating the impact of mindfulness when faced withcontingency changes on the Wisconsin Card Sorting TestEttehag, Alva, Sonehag Bröms, Anton January 2024 (has links)
Abstract Rule-governed behavior is a unique form of human behavior that comes with many advantages. Rule-following can however become problematic when it makes us insensitive to the consequences of our behavior and undermines our ability to adapt to changes in contingencies. This phenomenon has been hypothesized to play a central role in different psychological problems. In this thesis project, we investigated whether a mindfulness exercise from Acceptance and Commitment Therapy (ACT) could improve people's ability to adapt to changes in contingencies, as measured with the Wisconsin Card Sorting Test (WCST). We also explored whether recently developed self-report questionnaires of rule-governed behavior, the Generalized Pliance Questionnaire (GPQ-9) and the Generalized Tracking Questionnaire (GTQ) could predict the participants' performance on the WCST. In addition, we looked at the association between intolerance of uncertainty (IUS-12) and generalized pliance (GPQ-9). The sample consisted of 45 university students at Örebro university in Sweden. The results revealed that the brief mindfulness exercise did not improve the participants ability to adapt to contingency changes. The questionnaires of rule-governed behavior also did not predict this performance on the WCST. However, we found a novel association between generalized pliance and intolerance of uncertainty, which could be a future research path. Further, generalized pliance and generalized tracking displayed a moderate negative correlation, in line with previous research. Despite limited significant findings in this study, it was an effort to investigate central claims from the ACTand behavioral literature, centered around psychological flexibility and rule-governed behavior.
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