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101.
Cooling blocks ITM and LTM formation and preserves memory 总被引:2,自引:0,他引:2
Sangha S Morrow R Smyth K Cooke R Lukowiak K 《Neurobiology of learning and memory》2003,80(2):130-139
In Lymnaea aerial respiratory behaviour can be operantly conditioned; snails learn not to perform this behaviour. Depending on the training procedure used, snails are competent to form either intermediate-term (ITM; lasting 1-3 h) or long-term (LTM; >4 h) memory. We found that cooling the snails for 1 h immediately after training was sufficient to block either ITM or LTM. Cooling snails for a similar period 10 or 15 min after cessation of training, failed to block ITM and LTM formation, respectively. Finally, we employed the cooling technique to extend both ITM and LTM. That is, cooling could prevent forgetting. Cooling extended LTM that normally persisted for 2 days to at least 8 days. These data are consistent with the hypothesis that forgetting is due to the learning and remembering of interfering events, and thus is an active process. 相似文献
102.
Tenenbaum G Lidor R Lavyan N Morrow K Tonnel S Gershgoren A 《The Journal of psychology》2005,139(2):139-157
The authors performed 3 studies to investigate the effects of social-cognitive variables on physical effort perseverance. Linear hierarchical regressions indicated that task-specific variables and perceived ability or competence accounted for the majority of perseverance variance in all 3 studies. The strongest single predictors in this cluster of variables were perceived competence, confidence, and readiness to invest effort. Physical self-health and ability accounted for a lesser portion of effort perseverance variance, with self-presentation confidence being the major single predictor in this cluster. The goal orientation cluster accounted for the least amount of effort perseverance variance. Together with task-specific confidence and the readiness to invest effort, as well as determination and commitment and competence, the findings support the contention that task-specific efficacious beliefs to a large extent determine persistence and endurance behaviors. 相似文献
103.
Cyber‐bullying (where victims are targeted via online social networking or other electronic means) has gained increased attention in research and the broadcast media, but previous research has not investigated attribution of blame in such cyber‐bullying events. This experiment hypothesized that participants would assign higher ratings of blame to bullying perpetrators when the bullying situations were depicted as having highly foreseeable outcomes (vs. unforeseeable outcomes), and as occurring in school (vs. online). In addition, a significant interaction was predicted between outcome foreseeability and bullying situation, with highly foreseeable in‐school events being rated as the most predictable and attributable to the bully's actions. One‐hundred sixty‐three participants completed surveys containing demographic items, items regarding their past experiences of victimization, and one of four randomly‐assigned vignettes detailing a bullying situation (which participants rated). While hypotheses regarding outcome foreseeability were supported, no cyber‐bullying vs. in‐school main effects (or corresponding interaction effects) were detected. Implications for future research and practice, as well as study limitations, are discussed. 相似文献
104.
Why do some groups succeed where others fail? We hypothesise that collaborative success is achieved when the relationship between the dyad's prior expertise and the complexity of the task creates a situation that affords constructive and interactive processes between group members. We call this state the zone of proximal facilitation in which the dyad's prior knowledge and experience enables them to benefit from both knowledge-based problem-solving processes (e.g., elaboration, explanation, and error correction) andcollaborative skills (e.g., creating common ground, maintaining joint attention to the task). To test this hypothesis we conducted an experiment in which participants with different levels of aviation expertise, experts (flight instructors), novices (student pilots), and non-pilots, read flight problem scenarios of varying complexity and had to identify the problem and generate a solution with either another participant of the same level of expertise or alone. The non-pilots showed collaborative inhibition on problem identification in which dyads performed worse than their predicted potential for both simple and complex scenarios, whereas the novices and experts did not. On solution generation the non-pilot and novice dyads performed at their predicted potential with no collaborative inhibition on either simple or complex scenarios. In contrast, expert dyads showed collaborative gains, withdyads performing above their predicted potential, but only for the complex scenarios. On simple scenarios the expert dyads showed collaborative inhibition and performed worse than their predicted potential. We discuss the implications of these results for theories of collaborative problem solving. 相似文献
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Michael T. Morrow Julie A. Hubbard Lydia J. Barhight Amanda K. Thomson 《Journal of abnormal child psychology》2014,42(7):1089-1102
This study examined the relations of fifth-grade children’s (181 boys and girls) daily experiences of peer victimization with their daily negative emotions. Children completed daily reports of peer victimization and negative emotions (sadness, anger, embarrassment, and nervousness) on up to eight school days. The daily peer victimization checklist was best represented by five factors: physical victimization, verbal victimization, social manipulation, property attacks, and social rebuff. All five types were associated with increased negative daily emotions, and several types were independently linked to increased daily negative emotions, particularly physical victimization. Girls demonstrated greater emotional reactivity in sadness to social manipulation than did boys, and higher levels of peer rejection were linked to greater emotional reactivity to multiple types of victimization. Sex and peer rejection also interacted, such that greater rejection was a stronger indicator of emotional reactivity to victimization in boys than in girls. 相似文献
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Use of Gilliam Asperger's disorder scale in differentiating high and low functioning autism and ADHD
Mayes SD Calhoun SL Murray MJ Morrow JD Yurich KK Cothren S Purichia H Bouder JN 《Psychological reports》2011,108(1):3-13
Little is known about the validity of Gilliam Asperger's Disorder Scale (GADS), although it is widely used. This study of 199 children with high functioning autism or Asperger's disorder, 195 with low functioning autism, and 83 with attention deficit hyperactivity disorder (ADHD) showed high classification accuracy (autism vs. ADHD) for clinicians' GADS Quotients (92%), and somewhat lower accuracy (77%) for parents' Quotients. Both children with high and low functioning autism had clinicians' Quotients (M=99 and 101, respectively) similar to the Asperger's Disorder mean of 100 for the GADS normative sample. Children with high functioning autism scored significantly higher on the cognitive patterns subscale than children with low functioning autism, and the latter had higher scores on the remaining subscales: social interaction, restricted patterns of behavior, and pragmatic skills. Using the clinicians' Quotient and Cognitive Patterns score, 70% of children were correctly identified as having high or low functioning autism or ADHD. 相似文献