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排序方式: 共有639条查询结果,搜索用时 15 毫秒
101.
Abstract: Two versions of a Stroop‐like counting interference task were compared to examine how irrelevant information is ignored. In the integrated task, participants enumerated digits (inconsistent condition) or letters (neutral condition) while attempting to ignore the identity of the characters. In the newly created separated task, participants enumerated asterisks while attempting to ignore a single digit (inconsistent condition) or letter (neutral condition) at fixation. Interference (longer responses in the inconsistent condition than in the neutral condition) was small but significant in both tasks but was not reduced by separation. Contrasted with the pattern in the color–word Stroop task, these results suggest that dimensional separation has different effects on interference depending on the overall amount of interference. 相似文献
102.
Mintz (2003) found that in English child-directed speech, frequently occurring frames formed by linking the preceding (A) and succeeding (B) word (A_x_B) could accurately predict the syntactic category of the intervening word (x). This has been successfully extended to French (Chemla, Mintz, Bernal, & Christophe, 2009). In this paper, we show that, as for Dutch (Erkelens, 2009), frequent frames in German do not enable such accurate lexical categorization. This can be explained by the characteristics of German including a less restricted word order compared to English or French and the frequent use of some forms as both determiner and pronoun in colloquial German. Finally, we explore the relationship between the accuracy of frames and their potential utility and find that even some of those frames showing high token-based accuracy are of limited value because they are in fact set phrases with little or no variability in the slot position. 相似文献
103.
MacLeod CM 《Psychonomic bulletin & review》2011,18(6):1197-1202
Saying a word out loud makes it more memorable than simply reading it silently. This robust finding has been labeled the production effect and has been attributed to the enhanced distinctiveness of produced relative to unproduced items (MacLeod et al. Journal of Experimental Psychology: Learning, Memory, and Cognition, 36, 671–685, 2010). Produced items have the additional information that they were spoken aloud encoded in their representations, and this information
is useful during retrieval in certifying prior encoding. The present study explored whether production must be self-performed
to be beneficial, or whether another person’s production also makes an item more memorable. In two experiments, the production
effect was shown to be reliable when production was done by someone other than the rememberer (i.e., by the experimenter or
by another participant), but substantially smaller than the benefit from self-performed production. Intriguingly, the effect
was intermediate when production was done by both the rememberer and another person. Distinctiveness—and hence the production
effect—is greatest to the extent that it is personal. 相似文献
104.
The nucleus accumbens (NAc) has been implicated in mediating different forms of decision making in humans and animals. In
the present study, we observed that inactivation of the rat NAc, via infusion of GABA agonists, reduced preference for a large/risky
option and increased response latencies on a probabilistic discounting task. Discrete inactivations of the NAc shell and core
revealed further differences between these regions in mediating choice and response latencies, respectively. The effect on
choice was attributable to reduced win–stay performance (i.e., choosing risky after a being rewarded for a risky choice on
a preceding trial). Moreover, NAc inactivation altered choice only when the large/risky option had greater long-term value,
in terms of the amount of food that could be obtained over multiple trials relative to the small/certain option. Inactivation
of the NAc or the shell subregion also slightly reduced preference for larger rewards on a reward magnitude discrimination.
Thus, the NAc seems to play a small role in biasing choice toward larger rewards, but its contribution to behavior is amplified
when delivery of these rewards is uncertain, helping to direct response selection toward more favorable outcomes. 相似文献
105.
This study examined an activity restriction/pleasurable activities mismatch model for psychosocial and health-related outcomes. A total of 108 spousal caregivers of patients with Alzheimer's Disease (AD) were assessed for their experience of social and recreational activities over the past month as well as their perception of how restricted they were for engaging in social and recreational activities. Participants were divided into three groups based on their reported activities and activity restriction: HPLR = High Pleasant Events + Low Activity Restriction (i.e., reference group; N = 28); HPHR/LPLR = Either High Pleasant Events + High Activity Restriction or Low Pleasant Events + Low Activity Restriction (N = 43); LPHR = Low Pleasant Events + High Activity Restriction (N = 37). We hypothesized that participants reporting low pleasant events combined with high activity restriction (LPHR) would demonstrate greater disturbance relative to other two groups in multiple outcome domains, including: (a) greater mood disturbance, (b) greater use of negative coping factors, (c) reduced use of positive coping strategies, (d) reduced report of psychological resource factors (e.g., personal mastery, self-efficacy), and (e) increased report of subjective health difficulties (e.g., sleep disturbance). Results generally supported our hypotheses, suggesting that assessment of both constructs is important for best predicting quality of well-being in AD caregivers, and potentially for establishing maximal effect in behavior therapy for caregivers. 相似文献
106.
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108.
John Dixon Kevin Durrheim Colin G. Tredoux Linda R. Tropp Beverley Clack Liberty Eaton Michael Quayle 《Political psychology》2010,31(6):831-855
A Random Digit Dialing survey (n = 794) examined the interracial contact experiences and racial attitudes of White South Africans. The survey measured racial attitudes not only in terms of individuals' prejudice, but also in terms of their perceptions of group threat, perceived injustice, and support for various government policies designed to rectify the legacy of apartheid. The results indicated that the frequency and quality of interracial contact predicted Whites' support for both race compensatory and race preferential policies of redress, and these effects were partly mediated by perceived threat, sense of fairness, and racial prejudice. The research points to a potential rapprochement between the social psychological theories of intergroup contact and group positioning theories derived from the work of Blumer. It also highlights the value of adopting a more expansive and politically nuanced conception of the “consequences” of contact and desegregation. 相似文献
109.
Colin G. DeYoung 《Social and Personality Psychology Compass》2010,4(12):1165-1180
Personality neuroscience involves the use of neuroscience methods to study individual differences in behavior, motivation, emotion, and cognition. Personality psychology has contributed much to identifying the important dimensions of personality, but relatively little to understanding the biological sources of those dimensions. However, the rapidly expanding field of personality neuroscience is increasingly shedding light on this topic. This article provides a survey of progress in the use of neuroscience to study personality traits, organized using a hierarchical model of traits based on the Big Five dimensions: Extraversion, Neuroticism, Agreeableness, Conscientiousness, and Openness/Intellect. Evidence is reviewed for hypotheses about the biological systems involved in each trait. 相似文献
110.