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11.
Cognitive neuroscience of episodic memory encoding 总被引:6,自引:0,他引:6
This paper presents a cognitive neuroscientific perspective on how human episodic memories are formed. Convergent evidence from multiple brain imaging studies using positron emission tomography (PET) and functional magnetic resonance imaging (fMRI) suggests a role for frontal cortex in episodic memory encoding. Activity levels within frontal cortex can predict episodic memory encoding across a wide range of behavioral manipulations known to influence memory performance, such as those present during levels of processing and divided attention manipulations. Activity levels within specific frontal and medial temporal regions can even predict, on an item by item basis, whether an episodic memory is likely to form. Furthermore, separate frontal regions appear to participate in supplying code-specific information, including distinct regions which process semantic attributes of verbal information as well as right-lateralized regions which process nonverbal information. We hypothesize that activity within these multiple frontal regions provides a functional influence (input) to medical temporal regions that bind the information together into a lasting episodic memory trace. 相似文献
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Ruchkin VV Koposov RA af Klinteberg B Oreland L Grigorenko EL 《Journal of abnormal psychology》2005,114(3):477-482
The article investigates the relationships between platelet monoamine oxidase-B (MAO-B) activity, personality, and psychopathology (Diagnostic and Statistical Manual of Mental Disorders [4th ed.; American Psychiatric Association, 1994] diagnoses. These relationships were assessed in 178 incarcerated male juvenile delinquents. Even after controlling for smoking, the authors found that both Internalizing and Externalizing Psychopathology were negatively related to MAO-B activity. In the final reduced model, novelty seeking fully mediated the relationships between MAO-B and Externalizing Psychopathology but not between MAO-B and Internalizing Psychopathology. It was hypothesized that low platelet MAO-B activity does not directly predispose individuals to psychopathology but is related to specific personality traits, which in turn represent a vulnerability factor for psychopathology. Future studies should help clarify the nature of the relationships between personality, biological markers, and psychopathology. 相似文献
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Affective, behavioral, and cognitive functioning in adolescents with multiple suicide attempts 总被引:4,自引:0,他引:4
The purpose of this study was to examine affective, behavioral, and cognitive functioning in adolescents with multiple suicide attempts. Forty-seven adolescents with a history of multiple suicide attempts (MA) were compared to 74 single suicide attempters (SA) on psychiatric diagnosis, depressive symptoms, affect regulation, self-mutilation, alcohol use, and hopelessness. Results revealed that the MA group was more likely to be diagnosed with a mood disorder, and reported more severe depressive symptoms and anger, in comparison to the SA group. Behaviorally, the MA group had higher rates of disruptive behavior disorders and higher levels of affect dysregulation and serious self-mutilation than the SA group. Further, greater levels of hopelessness were reported by the MA than the SA group. After controlling for a mood disorder diagnosis, only differences in anger, affect dysregulation, and serious self-mutilation remained significant. Overall, results suggest that treatment with adolescent suicide attempters might specifically target anger and affect dysregulation to reduce risk for future suicidal behavior. 相似文献
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Lotte Nygaard Andersen Stinne Sonne Andersen Britt Muurholm Kirsten Kaya Roessler 《Scandinavian journal of psychology》2014,55(6):558-566
Individual health counseling is a form of intervention designed to minimize the effects of chronic health disease and to offer a path towards good health practices. The aim of the present study was to explore the experiences of those persons who participated in health counseling in order to assess the psychosocial significance of the counseling upon their health behavior. In addition the study was concerned with the factors which underlay peoples' decision to sign up for health counseling. The research involved 11 semi‐structured interviews with individuals who had participated in a municipality based health counseling program. Data was analyzed using Malterud's systemic text condensation and a theoretical framework around Bandura's social cognitive theory. Analysis revealed that an approach tailored to each individual with minor short‐term goals accompanied by feeling supported by the counselor produced the greatest impact on behavior. Receiving feedback from the counselor and feeling positive about the relationship were seen as essential. These aspects were also crucial in the decision to undertake health counseling. The study indicates that whether individual's sign up on their own initiative or conversely are invited to join the program has no influence upon their motivation to change their behavior. Overall the respondents demonstrated improvement in their behavior and attitudes towards their health. However, the study also indicates that this form of intervention is less or even ineffective without the support of the individual's immediate family. 相似文献
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To explore how model building adapts to changing environments, we had participants play “rock‐paper‐scissors” against a computer that played a frequency bias or a player‐dependent bias and then switched. Participants demonstrated their use of prior experience in how quickly they recognized and exploited changes in the computer's play strategy; in general, the more similar the strategies, the more efficient the updating. These findings inform our understanding of previously reported updating impairments in right‐brain damaged patients. 相似文献
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Cynthia L.S. Pury Thomas W. Britt Heidi M. Zinzow Mary Anne Raymond 《The journal of positive psychology》2014,9(1):30-41
We propose that seeking mental health care in an environment with heightened stigma may combine elements of both psychological and moral courage. Interviews of 32 active duty US Army personnel about their process of seeking current mental health care were analyzed for themes of voluntary action, personal risk, and noble or worthwhile goals (benefits). Risks and benefits were divided into internal risks and benefits, characteristic of psychological courage; and external risks and benefits, characteristic of moral courage. Concerns about external risks were themes in all narratives, while concerns about internal risks were themes in only about half of narratives. Both internal and external benefits of treatment were themes in approximately three-quarters of the narratives, whereas doubts about internal (but not external) benefits were also expressed at a similar rate. Thus, participants described an act of blended courage, with social risks of moral courage taken for wellness goals of psychological courage. 相似文献
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The present article reports a controlled intervention study concerning the effects of a nondirected use of pictures of works of art as a way of stimulating creativity in elderly institutionalized women. Participants were randomly allocated either to the intervention (n = 20) or to the control (n = 20) group. After the intervention significant improvement in ratings between the groups was measured, with the intervention group more open and flexible and with a stronger deposition to a creative behavior than subjects in the control group. They also showed greater freedom and variation than the control group in drawing circles and making pictures. In puzzle tests the intervention group constructed increasingly imaginative, irregular, and open alternatives with colored patterns. The control group constructed closed and black forms. Importantly, the status of increased creativity continued to exist four months after the intervention. No changes were seen in the control group. This group showed a rational and precautious personality. 相似文献