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201.
Scott LS 《Perception》2006,35(8):1107-1128
We sought to elucidate the behavioral and electrophysiological correlates of face processing, in adults and infants, by manipulating either the featural or configural information within the face. Two different experiments are reported. In these experiments, event-related potentials (ERPs) were recorded from the scalp while adult, 8-month-old, and 4-month-old participants completed configural-change and featural-change face tasks. The infants also completed a behavioral visual paired-comparison task with featural and configural face changes. ERP results reveal hemispheric differences in processing featural but not configural changes for the N170 in adults. Furthermore, featural and configural changes are processed differently within the right and left hemispheres. The right hemisphere N170 is significantly greater for configural compared to featural changes. The left hemisphere N170, however, exhibits the opposite effect. Infant data suggest that similar to adults, 8-month-old, but not 4-month-old participants, exhibit similar hemispheric differences between featural and configural changes for the P400 component. Behavioral results suggest increased sensitivity to both featural and configural face changes in 8-month-olds compared to 4-month-olds. 相似文献
202.
Williams MT Schaefer TL Furay AR Ehrman LA Vorhees CV 《Stress (Amsterdam, Netherlands)》2006,9(3):153-163
We examined the ontogeny of the corticosterone response to (+)-methamphetamine in neonatal rats. In experiment-1, animals were injected with 10 mg/kg of (+)-methamphetamine or saline and plasma corticosterone levels were examined in separate groups 30 or 105 min later on postnatal day (P) 1, 3, 5, 7, 9, 11, 13, 15, 17, or 19. The adrenal response to methamphetamine was best described by a U-shaped function with the nadir of corticosterone release occurring between P7 and P13. Experiment-2 was similar except that the effect of four consecutive days of exposure to (+)-methamphetamine (four times daily at 2 h intervals with 10 mg/kg) was assessed with a single final dose early on the fifth day (i.e. P1-5, 3-7, 5-9, 7-11, 9-13, 11-15, 13-17, 15-19). The 30 min corticosterone response after multiple methamphetamine doses was augmented compared to single exposures, with the exception of the two earliest dosing intervals ending on P5 and P7, where the responses were lower. In addition, at 105 min, the levels of corticosterone were attenuated relative to a single drug administration. With the exception of animals receiving methamphetamine from P15 to P19, thymus weights were unaffected. The data demonstrate that (+)-methamphetamine is a robust activator of corticosterone release in developing animals and this release is extensively modified by age and previous drug exposure. 相似文献
203.
ABSTRACT Past research shows that self-focused attention is robustly positively related to depression, and women are more likely than men to self-focus in response to depressed mood (e.g., R. Ingram, 1990 ; S. Nolen-Hoeksema, 1987 ). The goal of the current study was to further delineate gender differences in the correlates of self-focus as measured through the frequency of spontaneous use of self-referencing words. The frequency of such word use during a life history interview was correlated with self-reports, observations by clinically trained interviewers, and personality judgments by acquaintances. Results indicated that the relationship between self-reference and observations of depressive symptoms was stronger for women than men, and the relationship between self-reference and narcissistic authority and entitlement was stronger for men than for women. Acquaintance ratings supported these correlates. These findings illuminate the importance of using multiple measures and paying attention to gender differences in research on self-focus. 相似文献
204.
Two studies examine the impact of individual differences in group identity on psychological empowerment and well‐being among members of the ethnic minority and majority. Study 1 revealed an interaction between ethnicity and group identity in predicting empowerment and well‐being. Moreover, the results revealed that psychological empowerment partially mediated the relationship between group identity and well‐being among ethnic minorities. Using a mini‐longitudinal design, the results of Study 2 revealed interactions between ethnicity and group identity at Time 1 predicting psychological empowerment, well‐being, and positive affect at Time 2. In addition, the results confirmed psychological empowerment at Time 2 as a mediator of the relationship between group identity at Time 1 and well‐being at Time 2. 相似文献
205.
Josée Poirier Katie Wolfinger Lisa Spellman Lewis P. Shapiro 《Journal of psycholinguistic research》2010,39(5):411-427
Ellipsis refers to an element that is absent from the input but whose meaning can nonetheless be recovered from context. In
this cross-modal priming study, we examined the online processing of Sluicing, an ellipsis whose antecedent is an entire clause:
The handyman threw a book to the programmer but I don’t know which book the handyman threw to the programmerellipsis. To understand such an elliptical construction, the listener arguably must ‘fill in’ the missing material (“the handyman threw___
to the programmer”) based on that which occurs in the antecedent clause. We aimed to determine the point in time in which
reconstruction of the sluiced sentence is attempted and whether such a complex antecedent is re-accessed by the ellipsis.
Out of the two antecedent constituents for which we probed, only the Object (programmer) was found active in the elliptical clause, confirming that an antecedent is attributed to the sluice in real time. Possible
reasons for the non-observation of the Subject (handyman) are considered. We also suggest that ellipses are detected earlier in coordinated than subordinated sentences. 相似文献
206.
Lisa K. Fazio Pooja K. Agarwal Elizabeth J. Marsh Henry L. Roediger 《Memory & cognition》2010,38(4):407-418
Multiple-choice testing has both positive and negative consequences for performance on later tests. Prior testing increases
the number of questions answered correctly on a later test but also increases the likelihood that questions will be answered
with lures from the previous multiple-choice test (Roediger & Marsh, 2005). Prior research has shown that the positive effects
of testing persist over a delay, but no one has examined the durability of the negative effects of testing. To address this,
subjects took multiple-choice and cued recall tests (on subsets of questions) both immediately and a week after studying.
Although delay reduced both the positive and negative testing effects, both still occurred after 1 week, especially if the
multiple-choice test had also been delayed. These results are consistent with the argument that recollection underlies both
the positive and negative testing effects. 相似文献
207.
Processing approaches to cognition have a long history, from act psychology to the present, but perhaps their greatest boost was given by the success and dominance of the levels-of-processing framework. We review the history of processing approaches, and explore the influence of the levels-of-processing approach, the procedural approach advocated by Paul Kolers, and the transfer-appropriate processing framework. Processing approaches emphasise the procedures of mind and the idea that memory storage can be usefully conceptualised as residing in the same neural units that originally processed information at the time of encoding. Processing approaches emphasise the unity and interrelatedness of cognitive processes and maintain that they can be dissected into separate faculties only by neglecting the richness of mental life. We end by pointing to future directions for processing approaches. 相似文献
208.
Abstract In this study we describe an investigation into the residual written word retrieval skills of M.E.D., a patient with a severe aphasia. M.E.D.'s performance on written naming and writing to dictation tasks showed a distinctive pattern of performance across semantic categories. The patient's ability to write the names of countries and famous people was consistently superior to her ability to write the names of objects. These results could be considered as indicative of a double dissociation in the proper nouns category, as there are already patients on record who have a selective deficit in retrieving proper nouns. 相似文献
209.
Creativity is valuable for individuals and society; it is thus important to understand how creativity can be fostered and encouraged. Teachers have a unique opportunity to promote creativity among their students. Teaching for Creativity Scales analyze constructs that influence teachers’ perceptions of teaching for creativity. Approximately 650 teachers completed the survey. In the exploratory factor analysis, the items fit a 4-factor structure, producing 4 subscales: teacher self-efficacy, environmental encouragement, societal value, and student potential. The instrument was revised and distributed to additional teachers for a confirmatory factor analysis. With a few item deletions, the proposed model was a good fit for the data (CMIN/df = 1.819, CFI = .923, TLI rho2 = .917, RMSEA = .053). With continued testing and revisions, this instrument could be useful for measuring perceptional changes due to designed interventions, comparing different populations of teachers, and describing creativity perceptions at a given school. 相似文献
210.
What do social networking sites reveal about the relation between the self and the community? We conceptualise social networking sites as technologies of the self and the community enabling individuals to self‐present and also objectifying the community's evaluation of individuals (through ‘structures of recognition’ such as page views, friends and lovehearts). We analyse the way in which 37 Scottish adolescents used the social networking site Bebo in nonprescribed and creative ways. First, they challenged the single authorship of profiles by co‐creating multi‐authored profiles. Second, they used creative language to obscure meaning from the preying eyes of parents, teachers and potential employers. We conclude by discussing the simplistic assumptions that Bebo makes about the relation between the self and the community. In contrast, newer social networking sites such as Facebook and Google+ are increasingly enabling people to present different facets of themselves to different communities. How people use social networking sites, and how these sites are developing to attract more users, reveals how the multiplicity of human identity is related to the multiple communities that people participate in. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献