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471.
The mammalian brain is equipped with reward-harvesting mechanisms that efficiently categorize and value the behavioral choices that lead to rewards necessary for survival. In this context, 'efficiency' embodies the idea of achieving maximum returns for minimal energetic investments and places a premium on how an animal represents its available options. But the capacity to efficiently represent choices is a profoundly difficult problem because representations for behavioral choice depend intimately on the statistics of information arriving not just from the sensory world and but also from within the creature itself. Any complete account of decision-making in mammals must efficiently connect the internal needs to the perceptual apparatus available to a creature moment-to-moment. 相似文献
472.
Goernert PN Widner RL Otani H 《Quarterly journal of experimental psychology (2006)》2007,60(9):1178-1186
We investigated recall of line-drawing pictures paired at study with an instruction either to remember (TBR items) or to forget (TBF items). Across three 7-minute tests, net recall (items reported independent of accuracy in instructional designation) and correctly classified recall (recall conditional on correct instructional designation) showed directed forgetting. That is, for both measures, recall of TBR items always exceeded recall of TBF items. Net recall for both item types increased across tests at comparable levels showing hypermnesia. However, across tests, correct classification of both item types decreased at comparable levels. Collectively, hypermnesia as measured by net recall is possible for items from multiple sets, but at the cost of accurate source information. 相似文献
473.
Attachment insecurities,life satisfaction,and relationship satisfaction from a dyadic perspective: The role of positive and negative affect
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Fernando Molero Phillip R. Shaver Itziar Fernández Patricia Recio 《European journal of social psychology》2017,47(3):337-347
The purpose of this research is to examine the association between attachment insecurities (anxiety and avoidance) and both subjective well‐being (positive affect [PA] and negative affect [NA] and life satisfaction) and relationship satisfaction. There were 174 Spanish heterosexual couples with a mean length of relationship of 13.9 years who participated in the study. The hypotheses were tested according to the actor–partner interdependence model. We proposed a model in which PA and NA could mediate the association between attachment insecurities and life and relationship satisfaction. Results show that (1) actor effects are more frequent than partner effects; (2) anxious attachment tends to be related to NA and avoidant attachment to PA; (3) avoidance is more detrimental than anxiety for relationship satisfaction at individual and dyadic levels, and (4) there are some mediational effects of NA and PA in the association between attachment insecurities and life and relationship satisfaction. 相似文献
474.
Keren Maoz Amy B. Adler Paul D. Bliese Maurice L. Sipos Phillip J. Quartana Yair Bar-Haim 《Cognition & emotion》2017,31(7):1453-1464
This study explored attention and interpretation biases in processing facial expressions as correlates of theoretically distinct self-reported anger experience, expression, and control. Non-selected undergraduate students (N?=?101) completed cognitive tasks measuring attention bias, interpretation bias, and Spielberger’s State-Trait Anger Expression Inventory (STAXI-2). Attention bias toward angry faces was associated with higher trait anger and anger expression and with lower anger control-in and anger control-out. The propensity to quickly interpret ambiguous faces as angry was associated with greater anger expression and its subcomponent of anger expression-out and with lower anger control-out. Interactions between attention and interpretation biases did not contribute to the prediction of any anger component suggesting that attention and interpretation biases may function as distinct mechanisms. Theoretical and possible clinical implications are discussed. 相似文献
475.
Attachment-related strategies during thought suppression: ironic rebounds and vulnerable self-representations 总被引:5,自引:0,他引:5
The authors conducted 2 studies of attachment-related variations in thought suppression. Participants were asked, or not asked, to suppress thoughts about a relationship breakup and then to perform a Stroop task under high or low cognitive load. The dependent variables were the rebound, of previously suppressed separation-related thoughts (Study 1) and the accessibility of self-traits (Study 2). Under low cognitive load, avoidant individuals did not show any rebound of separation-related thoughts and activated positive self-representations. Under high cognitive load, avoidant participants failed to suppress thoughts of separation and were more likely to activate negative self-representations. Attachment anxiety was associated with high activation of negative self-representations and unremitting separation-related thoughts. The results are discussed in terms of the hidden vulnerabilities of avoidant individuals. 相似文献
476.
Two experiments are reported that examine the possibility that exercise selectively influences different types of cognition. To our knowledge, these experiments represent the first attempt to study higher-cognitive processes during exercise. Theoretical thinking was guided by the transient hypofrontality hypothesis. In both experiments, athletes who exercised at a sustained, moderate pace were compared to sedentary controls on two neuropsychological tests, one that is generally regarded as heavily dependent on prefrontal cognition and one that is relatively insensitive to prefrontal operation. Results showed that during exercise performance on tests demanding prefrontal-dependent cognition was impaired, while at the same time, cognitive processes requiring little prefrontal activity were unaffected. 相似文献
477.
Using a multitreatment withdrawal design, this study evaluated the differential effects of publicly posted plus verbal feedback, goal setting plus verbal feedback, and publicly posted feedback, verbal feedback, and goal setting together on the performance of 3 collegiate football players in practice scrimmages. Also assessed was whether the changes in practice behavior generalized to games. The dependent variables were performances on three wide receiver skills. The results show that public posting with verbal feedback, goal setting, and public posting with verbal feedback and goal setting were effective in improving player performance to a 90% criterion level during practice, and these changes generalized to game performance. 相似文献
478.
Effects of acute bouts of exercise on cognition 总被引:11,自引:0,他引:11
Tomporowski PD 《Acta psychologica》2003,112(3):297-324
A review was conducted of studies that assessed the effects of acute bouts of physical activity on adults' cognitive performance. Three groups of studies were constituted on the basis of the type of exercise protocol employed. Each group was then evaluated in terms of information-processing theory. It was concluded that submaximal aerobic exercise performed for periods up to 60 min facilitate specific aspects of information processing; however, extended exercise that leads to dehydration compromises both information processing and memory functions. The selective effects of exercise on cognitive performance are explained in terms of Sanders' [Acta Psychol. 53 (1983) 61] cognitive-energetic model. 相似文献
479.
McCullough JP Klein DN Borian FE Howland RH Riso LP Keller MB Banks PL 《Journal of abnormal psychology》2003,112(4):614-622
The nosology of chronic depression in Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV, American Psychiatric Association, 1994) is highly complex and requires clinicians to differentiate among several chronic course subtypes. This study replicates an earlier investigation (J. McCullough et al., 2000; see record 2000-05424-007) that found few differences among Diagnostic and Statistical Manual of Mental Disorders (3rd ed. rev.; DSM-III-R; American Psychiatric Association, 1987) categories of chronic depression. In the present study, 681 outpatients with chronic major depression, double depression, recurrent major depression without full interepisode recovery, and chronic major depression superimposed on antecedent dysthymia were compared. Few differences were observed on a broad range of demographic, clinical, psychosocial, family history, and treatment response variables. The authors suggest that chronic depression should be viewed as a single, broad condition that can assume a variety of clinical course configurations. 相似文献
480.
Determinants of health knowledge: an investigation of age,gender, abilities,personality, and interests 总被引:5,自引:0,他引:5
Ten areas of health knowledge were investigated in 2 studies, 1 of college students (N = 169) and 1 of adults from the community (ages 19-70; N = 176). Measures assessed knowledge of aging, orthopedic/dermatological concerns, common illnesses, childhood/early life, serious illnesses, mental health, nutrition, reproduction, safety, and treatment of illness/disease. Significant gender differences favoring women were found for most areas of health knowledge, especially reproduction and early life. Results showed that cognitive ability accounted for the most variance in health knowledge with nonability (personality and interest traits) and demographic variables accounting for smaller but significant amounts of variance across most knowledge domains. 相似文献