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181.
Connectivity among semantic associates: an fMRI study of semantic priming   总被引:1,自引:0,他引:1  
Semantic priming refers to a reduction in the reaction time to identify or make a judgment about a stimulus that has been immediately preceded by a semantically related word or picture and is thought to result from a partial overlap in the semantic associates of the two words. A semantic priming lexical decision task using spoken words was presented in event-related fMRI and behavioral paradigms. Word pairs varied in terms of semantic relatedness and the connectivity between associates. Thirteen right-handed subjects underwent fMRI imaging and 10 additional subjects were tested in a behavioral version of the semantic priming task. It was hypothesized priming would be greatest, reaction time fastest, and cortical activation reduced the most for related word pairs of high connectivity, followed by related word pairs of low connectivity, and then by unrelated word pairs. Behavioral and fMRI results confirmed these predictions. fMRI activity located primarily in bilateral posterior superior and middle temporal regions showed modulation by connectivity and relatedness. The results suggest that these regions are involved in semantic processing.  相似文献   
182.
183.
The present study compared sexual permissiveness between African adults and European adults. The 301 participants (154 males, 147 females) living in the area of Maputo, Mozambique, and the 309 participants (157 males, 152 females) living in the area of Toulouse, France, were presented with the Portuguese and French versions of 7 permissiveness items taken from the Sexual Attitudes Scale devised by Hendrick & Hendrick (1987 ). Permissiveness scores were shown to be lower among Mozambican participants than among French participants. A clear effect of religious involvement on permissiveness was also demonstrated, and this effect was of the same magnitude in both samples.  相似文献   
184.
The ability to both identify and explain others’ intentional acts is fundamental for successful social interaction. In two cross-sectional studies, we investigated 3- to 9-year-olds’ (n = 148) understanding of the folk concept of intentionality, using three types of intentionality measures. The relationship between this type of reasoning and false belief and interpretive mind understanding was also examined. Judgment of the appropriateness of an explanation was based on adult responses (n = 20). Overall, the results indicated that the ability to both identify and appropriately explain a range of intentional acts does not fully emerge until 7 years of age or later. The pattern of explanations revealed the gradual development of a folk concept of intentionality. Preschool- and early school-age children focused on the protagonists’ desires and actions, whereas 8- and 9-year-olds and adults were more likely to reference the protagonists’ awareness and skills.  相似文献   
185.
The present study aims to identify the processes underlying athletes' psychological disengagement during a competitive event. It was expected that goal attainment would predict psychological disengagement through the mediation of physical self‐worth. It was further hypothesized that athletic identity and passion for the activity would be predictors of psychological disengagement. Athletes completed measures of athletic identity, passion, and physical self‐worth before a competition; and perceived goal attainment, physical self‐worth, and psychological disengagement after a competition. Physical self‐worth mediated the relationship between perceived goal attainment and discounting. Obsessive passion and athletic identity were negatively related to devaluing over and above goal attainment and physical self‐worth. The study highlights individual and contextual correlates of psychological disengagement in the sport setting.  相似文献   
186.
This article celebrates the 50th anniversary of the introduction of John L. Holland's (1959) theory of vocational personalities and work environments by describing the theory's development and evolution, its instrumentation, and its current status. Hallmarks of Holland's theory are its empirical testability and its user-friendliness. By constructing measures for operationalizing the theory's constructs, Holland and his colleagues helped ensure that the theory could be implemented in practice on a widespread basis. Empirical data offer considerable support for the existence of Holland's RIASEC types and their ordering among persons and environments. Although Holland's congruence hypotheses have received empirical support, congruence appears to have modest predictive power. Mixed support exists for Holland's hypotheses involving the secondary constructs of differentiation, consistency, and vocational identity. Evidence of the continued impact of Holland's theory on the field of counseling psychology, particularly in the area of interest assessment, can be seen from its frequent implementation in practice and its use by scholars. Ideas for future research and practice using Holland's theory are suggested.  相似文献   
187.
The authors hypothesize that people who fear dependence evidence a particular defensive bias by perceiving benefits received to have been less voluntarily given, which justifies not depending upon their partner. In Study 1, both members of married couples completed daily diaries regarding benefits they gave and received and the extent to which each was given involuntarily versus voluntarily. Avoidant attachment measured before marriage predicted perceiving one’s spouse to have given benefits less voluntarily, controlling for that spouse’s reports of how voluntarily benefits had been given. In Study 2, participants identified three specific benefits received from a friend. Days later, participants were primed with avoidant feelings or not before reporting the extent to which the benefits identified earlier had been given voluntarily. Participants primed to feel avoidant perceived their friend to have given them benefits less voluntarily than did the remaining participants.  相似文献   
188.
In January of 2007, freezing temperatures destroyed citrus and vegetable crops in California. By May 2007, more than 9,000 freeze‐related unemployment applications had been filed. Through face‐to‐face interviews, this study documents the experience of 63 farmworkers to find out how they survived the freeze and accessed services. Findings revealed that more than half of the interviewees did not seek benefits from the governmental One‐Stop centers set up to help them. Less than 10% of interviewees stated the benefits had covered their needs. Creating simple, nonbureaucratic guidelines for assisting affected individuals emerged as a need.  相似文献   
189.
Our purpose in the following was to investigate the start-up rhetoric employed by U.S. President Barack Obama in his speeches. The initial 5 min from eight of his speeches from May to September of 2009 were selected for their variety of setting, audience, theme, and purpose. It was generally hypothesized that Barack Obama, widely recognized for the excellence of his rhetorical performance, would pursue both constant and variable strategies in his effort to establish contact with his audience. More specifically, it was hypothesized that the make-up of the audience—primarily native or non-native speakers of English—would be a prominent independent variable. A number of temporal and verbal measures were used as dependent variables. Variations were evident in mean length in syllables and duration in seconds of utterances (articulatory phrases), articulation rate in syllables per second of ontime, mean duration of silent pauses in seconds, and frequency of fillers, hesitations, colloquial words and phrases, introductory phrases, and 1st person singular pronominals. Results indicated that formality versus informality of the setting and presence or absence of a teleprompter were more prominent than native versus non-native audiences. Our analyses confirm Obama’s skillfulness in challenging and variable settings and clearly detect orderliness and scientific generalizability in language use. The concept of orality/literacy provides a theoretical background and emphasizes dialogical interaction of audience and speaker.  相似文献   
190.
There is support for a differentiated model of early internalizing emotions and behaviors, yet researchers have not examined the course of multiple components of an internalizing domain across early childhood. In this paper we present growth models for the Internalizing domain of the Infant-Toddler Social and Emotional Assessment and its component scales (General Anxiety, Separation Distress, Depression/Withdrawal, and Inhibition to Novelty) in a sample of 510 one- to three-year-old children. For all children, Internalizing domain scores decreased over the study, although girls had significantly higher initial levels and boys had steeper declines. General Anxiety increased over the study period and, when modeled individually, girls evidenced higher initial levels and greater increases. For all children, Separation Distress and Inhibition to Novelty decreased significantly over time, while Depression/Withdrawal remained low without change. Findings from our parallel process model, in which all components were modeled simultaneously, revealed that initial levels of internalizing scales were closely associated while rates of change were less closely related. Sex differences in variability around initial levels and rates of change emerged on some scales. Findings suggest that, for one- to three-year-olds, examining scales of the internalizing domain separately rather than as a unitary construct reveals more meaningful developmental and gender variation.  相似文献   
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