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171.
The authors report 2 experiments that test the stuck-in-time hypothesis, which argues that animals cannot time-date events and thus do not remember when events occurred and do not anticipate future events. In Experiment 1, rats in the experimental condition could earn a large reward by reentering the 1st arm that they visited on a radial maze. They did not learn to reenter this arm early and did no better than did a control group that was not given a large reward for reentering the first arm. In Experiment 2, rats in the experimental group could earn a large reward by delaying entry into a distinctive arm. These rats did not learn to delay entry into the distinctive arm, and they performed no better than did the control-group rats, which did not receive a large reward for delayed entry. These experiments provide further evidence in support of the stuck-in-time hypothesis. 相似文献
172.
Risky families: family social environments and the mental and physical health of offspring 总被引:38,自引:0,他引:38
Risky families are characterized by conflict and aggression and by relationships that are cold, unsupportive, and neglectful. These family characteristics create vulnerabilities and/or interact with genetically based vulnerabilities in offspring that produce disruptions in psychosocial functioning (specifically emotion processing and social competence), disruptions in stress-responsive biological regulatory systems, including sympathetic-adrenomedullary and hypothalamic-pituitary-adrenocortical functioning, and poor health behaviors, especially substance abuse. This integrated biobehavioral profile leads to consequent accumulating risk for mental health disorders, major chronic diseases, and early mortality. We conclude that childhood family environments represent vital links for understanding mental and physical health across the life span. 相似文献
173.
174.
Roberts WA Roberts S Kit KA 《Journal of experimental psychology. Animal behavior processes》2002,28(2):137-150
On randomly ordered trials, pigeons were presented with either a blue or a white key that flashed red for 200 ms at a fast (2 flashes/s), medium (1 flash/s), or slow (0.5 flashes/s) rate. The blue key signaled a fixed-interval (FI) schedule in which the first response after 20 s was reinforced, and the white key signaled a fixed-number (FN) schedule in which the first response after 20 flashes was reinforced. In Experiments 1 and 2, pigeons showed depressed responding to the flash on FI-cued trials and accelerated responding to the flash on FN-cued trials. When the response key was periodically blacked out in Experiments 3 and 4, counting but not timing was eliminated. 相似文献
175.
Social cognition after head injury: sarcasm and theory of mind 总被引:5,自引:0,他引:5
Closed head injury (CHI) is associated with communication difficulties in everyday social interactions. Previous work has reported impaired comprehension of sarcasm, using sarcastic remarks where the intended meaning is the opposite of the sincere or literal meaning. Participants with CHI in the present study were assessed using two types of sarcastic items, those with a directly opposite meaning and those with an indirect, non-literal but not directly opposite meaning. The CHI group was differentially poorer at comprehending sarcastic versus sincere remarks, although type of sarcastic materials did not influence performance. Errors involved not only literal interpretations, but also incorrect non-literal interpretations. Theory of mind (mentalising) was also assessed by comparing comprehension of human actions with control physical events. The CHI group was selectively impaired on the mentalising component of this task, and mentalising scores correlated with sarcasm comprehension. The implications of the findings for our understanding of impaired sarcastic comprehension after acquired brain injury are discussed. 相似文献
176.
McCullough ME Emmons RA Kilpatrick SD Mooney CN 《Personality & social psychology bulletin》2003,29(7):885-893
Narcissism is a set of traits that are motivated by the desire to establish and maintain a grandiose self-image. Consistent with this conceptualization, the authors hypothesized that narcissistic people perceive themselves to be the victims of other people's inter-personal transgressions more frequently than do less narcissistic people. In a 14-day diary study, the authors found that narcissism (particularly in its exploitiveness/entitlement dimension) was associated positively with the number and frequency of transgressions that respondents reported. The narcissism-victimization relationship appears to result, at least in part, from biased recall or self-presentation. The exploitiveness/entitlement dimension of narcissism may be particularly useful for explaining why narcissistic people report higher rates of interpersonal transgressions in their daily lives. 相似文献
177.
Accounting for changes in social support among married older adults: insights from the MacArthur Studies of Successful Aging 总被引:3,自引:0,他引:3
Using longitudinal, community-based data from the MacArthur Studies of Successful Aging, the authors examined determinants of changes in social support receipt among 439 married older adults. In general, social support increased over time, especially for those with many preexisting social ties, but those experiencing more psychological distress and cognitive dysfunction reported more negative encounters with others. Gender affected social support receipt: Men received emotional support primarily from their spouses, whereas women drew more heavily on their friends and relatives and children for emotional support. Discussion centers on the importance of social support provision to those with the greatest needs. 相似文献
178.
ABSTRACT At least three motives guide self-evaluation: accuracy, self-enhancement, and self-improvement. To satisfy these motives, self-evaluation may utilize different information sources. Self-esteem may also moderate self-evaluation strategies. Participants evaluated the frequency and usefulness of eight types of information for meeting the three motives in two life domains: academics and social life. Personal standards information was reported to be used more frequently than objective or social comparison information and also perceived as most useful for meeting all three motives. Individuals low in self-esteem reported using more social comparison information than those high in self-esteem, especially upward social comparison information. Individuals with high self-esteem reported using personal standards information more often than they used social comparison information, while individuals with low self-esteem relied equally often on these two types of information. Discussion focuses on the role social comparison information may have for those with unstable self-concepts. 相似文献
179.
Glen Dunlap Maria DePerczel Shelley Clarke Diane Wilson Suzanne Wright Ronnie White Arcadia Gomez 《Journal of applied behavior analysis》1994,27(3):505-518
Two analyses investigated the effects of choice making on the responding of elementary school students with emotional and behavioral challenges. In the first analysis, 2 participants were given choices from menus of academic tasks, all of which were pertinent to their educational objectives in English and spelling, respectively. Reversal designs showed that the choice-making conditions increased task engagement and reduced disruptive behavior for both students. An additional analysis was performed with a 3rd student in an effort to further distinguish the effects of choice making from preference. In this study, one of the no-choice phases was yoked to a previous choice-making condition. This analysis demonstrated that the choice-making condition was superior to baseline and yoked control phases as determined by levels of task engagement and disruptive behavior. The findings of the two analyses contribute information relevant to students with emotional and behavioral disorders, and to a growing literature on the desirable effects of choice making for students with disabilities and challenging behaviors. 相似文献
180.
Lee Kern-Dunlap Glen Dunlap Shelley Clarke Karen E. Childs Ronnie L. White Mary Pat Stewart 《Journal of applied behavior analysis》1992,25(2):355-364
Peer interactions are among the greatest challenges experienced by children who have severe emotional and behavioral problems. This study evaluated an intervention package designed to increase the ratio of these children's desirable to undesirable interactions. The package included three principal components: (a) observation of videotapes following regularly scheduled peer activity sessions; (b) self-evaluation of the children's peer interactions observed on the videotapes; and (c) delayed feedback and reinforcement for desirable peer interactions. Five students from two elementary schools participated. Multiple baseline designs and one reversal were used to evaluate the effects of the intervention package. The results showed that the intervention produced lower levels of undesirable peer interactions and higher ratios of desirable to undesirable interactions for all participants. The results are discussed in regard to their conceptual and applied implications and in terms of specific directions for future research. 相似文献