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171.
Social network sites (SNSs) such as Facebook have become integral in the development and maintenance of interpersonal relationships. Users of SNSs seek social support and validation, often using posts that illustrate how they have changed over time. The purpose of the present research is to examine how the valence and temporal context of an SNS post affect the likelihood of other users providing social support. Participants viewed hypothetical SNS posts and reported their intentions to provide social support to the users. Results revealed that participants were more likely to provide social support for posts that were positive and included temporal context (i.e., depicted improvement over time; Study 1). Furthermore, this research suggests that visual representations of change over time are needed to elicit social support (Study 2). Results are discussed in terms of their practical implications for SNS users and theoretical implications for the literature on social support and social media. 相似文献
172.
Ronacher B Wohlgemuth S Vogel A Krahe R 《Journal of comparative psychology (Washington, D.C. : 1983)》2008,122(3):252-263
A characteristic feature of hearing systems is their ability to resolve both fast and subtle amplitude modulations of acoustic signals. This applies also to grasshoppers, which for mate identification rely mainly on the characteristic temporal patterns of their communication signals. Usually the signals arriving at a receiver are contaminated by various kinds of noise. In addition to extrinsic noise, intrinsic noise caused by stochastic processes within the nervous system contributes to making signal recognition a difficult task. The authors asked to what degree intrinsic noise affects temporal resolution and, particularly, the discrimination of similar acoustic signals. This study aims at exploring the neuronal basis for sexual selection, which depends on exploiting subtle differences between basically similar signals. Applying a metric, by which the similarities of spike trains can be assessed, the authors investigated how well the communication signals of different individuals of the same species could be discriminated and correctly classified based on the responses of auditory neurons. This spike train metric yields clues to the optimal temporal resolution with which spike trains should be evaluated. 相似文献
173.
ABSTRACT— People often show considerable systematic variability in their ability to perform many different cognitive tasks. In this article, we argue that by combining an individual-differences approach with an experimental-cognitive-neuroscience approach one can often further constrain potential theories of the underlying cognitive mechanisms. In support of this proposal, we outline three basic benefits of using an individual-differences approach: validating neurophysiological measures, demonstrating associations among constructs, and demonstrating dissociations among apparently similar constructs. To illustrate these points, we describe recent work by us and other researchers that utilizes each of these techniques to address specific questions within the domain of visual working memory. It is our hope that some of these techniques for utilizing individual variability may be applied to other domains within cognitive neuroscience. 相似文献
174.
Lieberman DA Vogel AC Nisbet J 《Quarterly journal of experimental psychology (2006)》2008,61(2):194-202
Animal research has shown that reinforcement is substantially less effective when it is delayed, but in studies of human motor learning delays in providing feedback typically have much less effect. One possible explanation is that in human research participants know the response to be learned and can thus focus on it during the delay; that is not the case in experiments on animals. We tested this hypothesis using a task in which participants had minimal information on what movement was correct and found that, as in animal experiments, participants learned only when feedback was immediate. A second experiment confirmed that the effects of the delay depended on how many responses had to be held in working memory: the greater the memory load, the poorer the learning. The results point to the importance of activity during a delay on learning; implications for the teaching of motor skills are discussed. 相似文献
175.
William J. Lyddon Alison L. Clay Cheri L. Sparks 《Journal of counseling and development : JCD》2001,79(3):269-274
Increased general interest among counselors in the way language, narratives, and stories influence clients' personal and social realities has drawn particular attention to metaphorical language and its facilitative role in counseling. In this article, the authors suggest that metaphors and metaphorical knowing may play a significant role in facilitating at least 5 developmental change processes in counseling: relationship building, accessing and symbolizing client emotions, uncovering and challenging clients' tacit assumptions, working with client resistance, and introducing new frames of reference. 相似文献
176.
Adam P. Vogel Helen J. Chenery Catriona M. Dart Binh Doan Mildred Tan David A. Copland 《Journal of psycholinguistic research》2009,38(5):459-473
Lexical-semantic access and retrieval was examined in 15 adults diagnosed with schizophrenia and matched controls. This study
extends the literature through the inclusion of multiple examinations of lexical-semantic production within the same patient
group and through correlating performance on these tasks with various positive and negative clinical symptoms. On tasks of
verbal fluency, meaning generation, sentence production using contextual information and confrontation naming, participants
with schizophrenia made significantly more semantic errors on naming tasks; produced fewer meanings for homophones; produced
fewer items on semantic, phonological, cued and switching fluency tasks; and produced more errors on sentence production tasks
when compared to healthy controls. Significant correlations were also observed between ratings of psychomotor poverty and
measures of semantic production and mental inflexibility. This study has provided additional evidence for deficits in lexical-semantic
retrieval which are not due to underlying semantic store degradation, do not involve phonological based retrieval, and at
the level of sentence generation appear to vary as a function of the contextual constraints provided. 相似文献
177.
Trafton Drew Andrew W. McCollough Todd S. Horowitz Edward K. Vogel 《Psychonomic bulletin & review》2009,16(2):411-417
What is the role of attention in multiple-object tracking? Does attention enhance target representations, suppress distractor representations, or both? It is difficult to ask this question in a purely behavioral paradigm without altering the very attentional allocation one is trying to measure. In the present study, we used event-related potentials to examine the early visual evoked responses to task-irrelevant probes without requiring an additional detection task. Subjects tracked two targets among four moving distractors and four stationary distractors. Brief probes were flashed on targets, moving distractors, stationary distractors, or empty space. We obtained a significant enhancement of the visually evoked P1 and N1 components (~100–150 msec) for probes on targets, relative to distractors. Furthermore, good trackers showed larger differences between target and distractor probes than did poor trackers. These results provide evidence of early attentional enhancement of tracked target items and also provide a novel approach to measuring attentional allocation during tracking. 相似文献
178.
179.
Biased Assimilation and Attitude Polarization in Response to Learning About Biological Explanations of Homosexuality 总被引:1,自引:0,他引:1
According to attribution theory stigmatized behaviors with biological explanations will be perceived more positively than those with psychological explanations, but informing people of the biological explanations of homosexuality has produced mixed results on attitudes. To examine if biased processing could explain previous findings we tested whether biased assimilation (initial attitudes’ effect on perceived persuasiveness) and attitude polarization (initial attitudes’ effect on reported attitude change) affected learning about biological explanations of homosexuality among 210 U.S. undergraduates. General Linear Model analyses showed that (1) individuals with positive attitudes toward homosexuality saw biological explanations as a more persuasive reason to accept homosexuality than those with negative attitudes, and (2) initial attitudes generally led to a strengthening of those attitudes after learning about biological explanations. 相似文献
180.