首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
The purpose of this study was to evaluate the effects of functional communication training (FCT) on the occurrence of non-targeted disruptive behavior. The 10 participants were preschool-aged children with developmental disabilities who engaged in both destructive (property destruction, aggression, self-injury) and disruptive (hand flapping, spinning in circles, shrill laughter, screaming, crying) behaviors. Only destructive behavior was targeted for the functional analyses and FCT, but data were also collected on disruptive behaviors. All procedures were conducted in the participants’ homes by their mothers with investigator coaching. Phase 1 consisted of conducting a functional analysis within a multielement design. Phase 2 consisted of conducting FCT with demand fading and repeated extinction baselines within a reversal design. Single-case data are provided for 3 participants, and summary data are provided for all 10 participants. Results of phase 1 showed that all participants’ destructive and disruptive behavior was maintained, at least in part, by negative reinforcement. Results of phase 2 showed that both destructive behavior and non-targeted disruptive behavior occurred at lower levels during FCT when compared to the functional analysis demand condition and baseline conditions, suggesting that FCT was effective in decreasing both target destructive behavior and non-targeted disruptive behaviors.  相似文献   

3.
We evaluated the utility of an assessment for identifying tasks for the functional analysis demand condition with 4 individuals who had been diagnosed with autism. During the demand assessment, a therapist presented a variety of tasks, and observers measured problem behavior and compliance to identify demands associated with low levels of compliance or high levels of problem behavior (low‐probability demands) and demands associated with high levels of compliance or low levels of problem behavior (high‐probability demands). Results showed that clearer functional analysis outcomes were obtained for 3 of the 4 participants when low‐probability rather than high‐probability demands were used.  相似文献   

4.
Recent research findings suggest that reinforcing stimuli may be differentially effective as response requirements increase. We extended this line of research by evaluating responding under increasing schedule requirements via progressive‐ratio schedules and behavioral economic analyses. The differential effectiveness of preferred stimuli in treating destructive behavior maintained by automatic reinforcement also was examined. Results showed that one of two stimuli was associated with more responding under increasing schedule requirements for the 4 participants. Furthermore, stimuli associated with more responding under increasing schedule requirements generally were more effective in treating destructive behavior than stimuli associated with less responding. These data suggest that progressive‐ratio schedules and behavioral economic analyses may be useful for developing a new technology for reinforcer identification. From a clinical perspective, these results suggest that two reinforcers may be similarly effective for low‐effort tasks and differentially effective for high‐effort tasks.  相似文献   

5.
Few direct‐assessment procedures are designed to identify potential negative reinforcers (e.g., including demands in the escape condition of functional analyses). Two participants were systematically exposed to a series of demands nominated by caregivers as potential negative reinforcers. Sessions ended following the first instance of problem behavior, and a hierarchy of demand aversiveness was created based on the latency to the first problem behavior. Subsequent functional analyses confirmed the predictive value of the hierarchy, with shorter latency demands consistently producing more differentiated functional analysis outcomes.  相似文献   

6.
Repetitive behaviors such as excessive straightening are commonly observed among individuals with autism. Attempts to prevent these behaviors may increase the likelihood of other problem behaviors. The present study was designed to assess and treat the excessive straightening and associated destructive behaviors of a 16‐year‐old boy who had been diagnosed with autism and moderate mental retardation. Following a series of functional analyses, an intervention that incorporated functional communication, extinction of destructive behavior, and blocking of repetitive straightening was demonstrated to be effective in reducing straightening and destructive behavior.  相似文献   

7.
Children with developmental disabilities and attention deficit hyperactivity disorder often engage in challenging behavior when presented with academic demands. Parents of school‐age children with such diagnoses are commonly asked to assist their child with academic tasks but may struggle to do so as a result of challenging behavior. This study evaluated the effects of a parent education intervention on the challenging behaviors and task engagement of three school‐age children with disabilities during academic activities. Parent education consisted of (i) weekly didactic instruction; (ii) modeling; (iii) role‐play; and (iv) in vivo coaching and performance feedback. Using a non‐concurrent multiple baseline across participants with embedded individual multi‐element design, this study demonstrates that a parent education intervention results in decreases in challenging behavior and increases in task engagement. These results suggest that parent education focused on addressing challenging behavior during one‐to‐one instruction may facilitate completion of academic tasks. Implications for practice and suggestions for future research are discussed. Copyright © 2013 John Wiley & Sons, Ltd.  相似文献   

8.
Concepts from behavioral momentum theory, along with some empirical findings, suggest that the rate of baseline reinforcement may contribute to the relapse of severe destructive behavior. With seven children who engaged in destructive behavior, we tested this hypothesis in the context of functional communication training by comparing the effects of different baseline reinforcement rates on resurgence during a treatment challenge (i.e., extinction). We observed convincing resurgence of destructive behavior in four of seven participants, and we observed more resurgence in the condition associated with high‐rate baseline reinforcement (i.e., variable‐interval 2 s in Experiment 1 or fixed‐ratio 1 in Experiment 2) compared to a low‐rate baseline reinforcement condition. We discuss the implications of these results relative to schedules of reinforcement in the treatment of destructive behavior and strategies to mitigate resurgence in clinical settings.  相似文献   

9.
Richard F. Martell 《Sex roles》1996,35(3-4):153-169
This study explored possible mediators of gender bias in work behavior ratings. However, we believed it important to do so by first attempting to create a decision-making environment that better reflected the cognitive demands imposed on raters in work settings. Accordingly, 74 participants, mostly White and middle class students, read a vignette that depicted the work behavior of a male or female police officer. All participants attended to another task while reading the vignette and did so while under a perceived time limit; then, immediately or 5 days later, they completed a work behavior questionnaire. As expected, more effective work behaviors were attributed to men than women—but only when ratings were delayed. Further analyses revealed that a systematic response bias was responsible, whereas selective memory played no role. Specifically, participants adopted a more liberal decision criterion when attributing effective work behaviors to men than women. These results help to illuminate the dynamics of discrimination and provide direction for future research efforts.  相似文献   

10.
BackgroundWhen moving in public space, individuals are challenged with having to master multiple cognitive and motor demands, either simultaneously or in short succession. Empirical evidence suggests that cognitive-motor multi-tasking during walking may impact one or both, cognitive and motor performance. These performance changes may result from unintentional task-interference effects, but also from strategic behavioral changes to cope with the multiple task demands. Strategic changes in human walking behavior have been uncovered in experimental scenarios, in which individuals avoid colliding with other individuals or objects in the environment. However, whether collision avoidance behavior is sensitive to cognitive-motor multi-task demands has remained underexplored, yet. Thus, with this study, we aimed at systematically studying cognitive-motor multi-task effects on collision avoidance during human locomotion.MethodsTen healthy participants (23.9 ± 4.3 years, 4 female) were walking at their preferred speed from a predefined start to end position under four experimental conditions: walking only (BL), walking while having to avoid a collision with another person (IO), writing a text message on a mobile phone while walking (cognitive-motor dual-task, DT), and writing while walking with collision avoidance demand (multi-task, MT). Parameters quantifying locomotor as well as collision avoidance behavior (path length, walking speed, minimum distance, path and speed adjustment) were assessed using optical motion tracking. In addition, performance in the writing task (errors, writing speed) was examined.ResultsParticipants' locomotor behavior was significantly affected by experimental conditions, with additive effects of multi-task demands on both path length (BL = DT < IO < MT) and walking speed (BL > IO > DT > MT). Further, participants showed an increased error rate and writing speed in the writing task when walking as compared to when standing still, independent of the presence of an interferer. Importantly, collision avoidance behavior was selectively influenced by cognitive-motor multi-task demands, with an increased minimum distance to the other person in the MT-condition, but no differences in path or speed adjustment.DiscussionOur results suggest significant multi-tasking effects of writing a message on the mobile phone while walking on both locomotor behavior and writing task performance. Collision avoidance behavior seems to be selectively affected by multi-task demands, reflected in an increased minimum passing distance, without overt changes in path or speed adjustments. This may be indicative for a strategic change in collision avoidance behavior towards a more cautious strategy to account for altered attention allocation and less visual feedback when writing while walking.  相似文献   

11.
Unlike potential tangible positive reinforcers, which are typically identified for inclusion in functional analyses empirically using preference assessments, demands are most often selected arbitrarily or based on caregiver report. The present study evaluated the use of a demand assessment with 12 participants who exhibited escape‐maintained problem behavior. Participants were exposed to 10 demands, with aversiveness measured by average latency to the first instance of problem behavior. In subsequent functional analyses, results of a demand condition that included the demand with the shortest latency to problem behavior resulted in identification of an escape function for 11 of the participants. In contrast, a demand condition that included the demand with the longest latency resulted in identification of an escape function for only 5 participants. The implication of these findings is that for the remaining 7 participants, selection of the demand for the functional analysis without using the results of the demand assessment could have produced a false‐negative finding.  相似文献   

12.
The present research examines whether romantically involved individuals process behavioral information of attractive alternatives in a biased manner. When presented with behavioral information of an attractive mate, in Study 1 involved (vs. uninvolved) participants tended to recall fewer positive behaviors of an attractive alternative. Study 2 demonstrated that involved participants recalled more negative behaviors, and also evaluated these behaviors more negatively, compared to uninvolved participants. Study 3 demonstrated that romantically involved participants recalled more negative (but also neutral) behaviors when it concerned behaviors displayed by an attractive alternative as compared to a same‐sex other. These findings provide initial evidence for biased processing of behavioral information of an alternative mate, which may serve an important relationship protection function.  相似文献   

13.
Influenced by chaos theory, the emotional cascade model proposes that rumination and negative emotion may promote each other in a self‐amplifying cycle that increases over time. Accordingly, exponential‐compounding effects may better describe the relationship between rumination and negative emotion when they occur in impulsive persons, and predict impulsive behavior. Forty‐seven community and undergraduate participants who reported frequent engagement in impulsive behaviors monitored their ruminative thoughts and negative emotion multiple times daily for two weeks using digital recording devices. Hypotheses were tested using cross‐lagged mixed model analyses. Findings indicated that rumination predicted subsequent elevations in rumination that lasted over extended periods of time. Rumination and negative emotion predicted increased levels of each other at subsequent assessments, and exponential functions for these associations were supported. Results also supported a synergistic effect between rumination and negative emotion, predicting larger elevations in subsequent rumination and negative emotion than when one variable alone was elevated. Finally, there were synergistic effects of rumination and negative emotion in predicting number of impulsive behaviors subsequently reported. These findings are consistent with the emotional cascade model in suggesting that momentary rumination and negative emotion progressively propagate and magnify each other over time in impulsive people, promoting impulsive behavior.  相似文献   

14.
This research presents a novel approach to discriminating between true and deceptive statements about intended future behavior. Arguing that true intentions are goal‐directed, we predict that people who genuinely intend to pursue a reported goal will implicitly evaluate goal‐relevant cues positively, whereas people who do not intend to pursue the goal will not. Participants in an experiment were instructed to tell the truth about a planned future behavior (true intention) or to falsely report that same behavior to mask their actual mock‐criminal intention (false intention). As predicted, an evaluative priming task showed that participants with true intention exhibited implicit positive evaluations of cues relevant to the reported goal, whereas participants with false intention did not. Subsequent analyses showed that implicit positivity significantly discriminated between true and false intentions. The findings are discussed in terms of theoretical contributions and implications for the development of future detection tools. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   

15.
Extensive research has validated the standard functional analysis as a useful technology for identifying the function of problem behavior in individuals with developmental disabilities. The assessment of low‐rate problem behavior is one area that has yet to receive a significant amount of research. Some problem behaviors may occur at rates too low to be observed during a standard functional analysis, despite the fact that they may be highly destructive behaviors. The current study evaluated the effectiveness of initiating functional analysis sessions contingent on the occurrence of bursts of problem behavior for producing interpretable functional analysis results. While a standard functional analysis did not produce definitive results with respect to behavioral function, the ‘low‐rate’ functional analysis produced interpretable results for all three participants. Two of the three participants were available for the evaluation of treatments based on their functional analysis results. Function‐based treatments suppressed rates of problem behavior for both participants. Copyright © 2004 John Wiley & Sons, Ltd.  相似文献   

16.
Clinicians regularly use both indirect and direct assessments to identify preferred stimuli to include in control conditions and positive reinforcement test conditions in a functional analysis (FA). However, clinicians often rely on indirect assessment alone (e.g., caregiver report) to identify aversive stimuli to include in negative reinforcement test conditions. In this study, we evaluate a paired-stimulus demand analysis and validate assessment results via FA. Results indicate that, for all 4 participants, the demands selected least often evoked higher rates of destructive behavior than more frequently selected demands. We identified an escape function for all 4 participants in the escape–least selected (LS) condition (true positive finding) and for only 1 participant in the escape–most selected (MS) condition (false negative finding for 3 of 4 participants). These results support the utility of empirically deriving stimuli for inclusion in the negative reinforcement test condition of an FA to decrease the likelihood of false negative findings.  相似文献   

17.
This study evaluated the use of written checklists and task analyses as self-administered prompts to teach home accident prevention skills to 4 adults with brain injuries. Subsequent to baseline, participants used written checklists that identified potential in-home hazards but did not prompt behaviors necessary for hazard remediation. Written individualized task analyses, incorporating specific behavioral steps for correcting hazards that participants had failed to remediate during the checklist phase, were used to prompt appropriate responding when necessary. These were subsequently faded to transfer stimulus control to the natural conditions. A multiple probe technique across participants and settings was used. Results indicated that the checklist alone was sufficient to increase appropriate responses to many of the potential hazards. Individualized task analyses, when needed, resulted in appropriate remediation of all potential hazards. Generalization to untrained potential hazards occurred to some degree for all participants. Follow-up results showed that most skills trained were maintained over a 1-month period.  相似文献   

18.
A primary goal of behavioral interventions is to reduce dangerous or inappropriate behavior and to generalize treatment effects across various settings. However, there is a lack of research evaluating generalization of treatment effects while individuals with functionally equivalent problem behavior interact with each other. For the current study, the severe problem behavior of two participants with developmental disabilities was targeted for assessment and treatment. Results of a functional analysis indicated that for both participants, problem behaviors occurred when destructive behavior produced reinforcement of participant mands . The use of a multiple schedule that alternated between differential reinforcement of other behaviors and differential reinforcement of alternative behavior (mands) was sufficient to produce a significant reduction in problem behavior for one participant; the addition of differential reinforcement of alternative behaviors via compliance was necessary for the second participant. Extended treatment sessions, which focused on interaction between the two participants, involved one therapist concurrently implementing each participant’s treatment while they were directed to play with one another (a situation that previously evoked problem behavior). Results show that each participant’s treatment produced low to zero rates of problem behavior even during extended interactions.  相似文献   

19.
Using the dualistic model of passion (Vallerand et al. in J Pers Soc Psychol 85:756–767, 2003), the present research examined the role of harmonious and obsessive romantic passion in individuals’ engagement in destructive behavior during conflict and in reparative behaviors following conflict with one’s partner. Results revealed that harmonious and obsessive passion were respectively negatively and positively related to engagement in destructive conflict behavior. In addition, harmonious passion was positively related to reparative behaviors following conflict while obsessive passion was not significantly related to this outcome. Importantly, these results held whether data were obtained by asking participants to recall about how things typically happen when they experience conflict with their partner (Study 1) or whether diary data were averaged across days when conflict actually happened (Study 2). Results underscore the importance of distinguishing harmonious from obsessive romantic passion.  相似文献   

20.
High levels of cooperation and low aggression seem obviously vital to the successful implementation of space missions. To elucidate the effect of microgravity on these behaviors, we investigated whether cooperative and aggressive behaviors would be affected in 16 male volunteers during 45‐day ?6° head‐down bed rest, which is a reliable simulation model for most physiological effects of spaceflight. We used an ultimatum game task to evaluate the cooperative behavior and a revised competitive reaction time test to evaluate the aggressive behavior simultaneously. We found that (1) the participants became less cooperative in the post‐bed rest phase in comparison with the pre‐bed rest phase and (2) the participants became more aggressive in the in‐bed rest phase in comparison with the pre‐bed rest phase. These findings provide evidence that head‐down bed rest may affect both cooperative and aggressive behaviors in males, suggesting an important perspective for future studies in space psychology.Copyright © 2017 John Wiley & Sons, Ltd.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号