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81.
82.
In the present object recognition study, we examined the relationship between brain activation and four behavioral measures:
error rate, reaction time, observer sensitivity, and response bias. Subjects perceptually matched object pairs in which structural
similarity (SS), an index of structural differentiation, and exposure duration (DUR), an index of task difficulty, were manipulated.
The SS manipulation affected the fMRI signal in the left anterior fusiform and parietal cortices, which in turn reflected
a bias to respond same. Conversely, an SS-modulated fMRI signal in the right middle frontal gyrus reflected a bias to respond different. The DUR manipulation affected the fMRI signal in occipital and posterior fusiform regions, which in turn reflected greater
sensitivity, longer reaction times, and greater accuracy. These findings demonstrate that the regions most strongly implicated
in processing object shape (SS-modulated regions) are associated with response bias, whereas regions that are not directly
involved in shape processing are associated with successful recognition performance. 相似文献
83.
84.
Does high familiarity with a face enable particularly efficient visual processing? In three experiments, we presented briefly and successively two pairs of faces (either famous or recently learned), masking each presentation. Between the first and the second presentations, one face changed, and the task was to locate this change. Performance was significantly better when the change involved a famous face. This superfamiliarity effect was found only for changes occurring in the left visual field and was abolished by inverting the faces. Extended prior study of the recently learned faces did not improve performance with these stimuli. The results suggest that superfamiliarity promotes highly efficient visual processing and may especially activate a configural mode of analysis. 相似文献
85.
The present study examined the perceptions school-age children have of stutterers. Four groups of fourth and fifth grade students viewed a videotape with either the speaker stuttering or not stuttering while reading a poem. A semantic differential scale of bi-polar adjective pairs was used to rate the speaker on intelligence and personality traits. The current study found that there is a significant difference between school-age children's perceptions of stutterers and nonstutterers with the ratings for the disfluent speaker more negative than the ratings for the fluent speaker. It was found that children did not rate personality and intelligence related traits differently. This information can be used to validate the need for education regarding stuttering for children and those who work with children. EDUCATIONAL OBJECTIVES: The reader will learn about and be able to (1). identify perceptions of stutterers by a variety of groups; (2). discuss the implications of research on perceptions of stutterers; and (3). compare/contrast children and adults and their perceptions. 相似文献
86.
Research has shown that children and adults believe that emissions from the eye occur during the act of vision. Such beliefs are similar to ancient extramission theories of perception. In Study 1, the authors tested the idea that extramission beliefs might stem from people's thinking about what might occur during vision as opposed to what is necessary for seeing. Training participants to think about what is necessary for vision, however, had no effect on extramission responses. The results of Study 2 indicated that emphasizing the idea of visual input led to a decline in extramission responses and supported the hypothesis that extramission notions stem from the outer-oriented phenomenology of vision. 相似文献
87.
Fostering group identification and creativity in diverse groups: the role of individuation and self-verification 总被引:4,自引:0,他引:4
Swann WB Kwan VS Polzer JT Milton LP 《Personality & social psychology bulletin》2003,29(11):1396-1406
A longitudinal study examined the interplay of identity negotiation processes and diversity in small groups of master's of business administration (MBA) students. When perceivers formed relatively positive impressions of other group members, higher diversity predicted more individuation of targets. When perceivers formed relatively neutral impressions of other group members, however, higher diversity predicted less individuation of targets. Individuation at the outset of the semester predicted self-verification effects several weeks later, and self-verification, in turn, predicted group identification and creative task performance. The authors conclude that contrary to self-categorization theory, fostering individuation and self-verification in diverse groups may maximize group identification and productivity. 相似文献
88.
Distinct complex brain systems support selective attention and emotion, but connections between them suggest that human behavior should reflect reciprocal interactions of these systems. Although there is ample evidence that emotional stimuli modulate attentional processes, it is not known whether attention influences emotional behavior. Here we show that evaluation of the emotional tone (cheery/dreary) of complex but meaningless visual patterns can be modulated by the prior attentional state (attending vs. ignoring) used to process each pattern in a visual selection task. Previously ignored patterns were evaluated more negatively than either previously attended or novel patterns. Furthermore, this emotional devaluation of distracting stimuli was robust across different emotional contexts and response scales. Finding that negative affective responses are specifically generated for ignored stimuli points to a new functional role for attention and elaborates the link between attention and emotion. This finding also casts doubt on the conventional marketing wisdom that any exposure is good exposure. 相似文献
89.
Jane J. Carroll 《Journal of Addictions & Offender Counseling》1999,19(2):50-61
Tenets of Adlerian theory and practice are compatible with the philosophy and practices of Alcoholics Anonymous. Counselors can expect treatment approaches based on Adlerian counseling theory to be congruent with 12-Step practices of individuals who are in recovery from alcohol dependence. 相似文献
90.
Menopause is a normative life transition that is experienced by virtually all women, yet remains poorly understood. The dominance of the biomedical model results in a unidimensional definition of menopause as a biological event, ignoring the influence of cultural and psychosocial factors. Counselors who use an integrative approach can not only provide accurate biomedical information but also conceptualize menopause as a normative midlife transition. The purpose of this article is to provide a foundation in biomedical issues and to consider how these independently, and in interaction with cultural and psychosocial factors, influence the experience of menopause. 相似文献