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201.
Pamela Qualter Ken Rotenberg Louise Barrett Peter Henzi Alexandra Barlow Maria Stylianou Rebecca A. Harris 《Journal of abnormal child psychology》2013,41(2):325-338
The hypothesis that lonely children show hypervigilance for social threat was examined in a series of three studies that employed different methods including advanced eye-tracking technology. Hypervigilance for social threat was operationalized as hostility to ambiguously motivated social exclusion in a variation of the hostile attribution paradigm (Study 1), scores on the Children’s Rejection-Sensitivity Questionnaire (Study 2), and visual attention to socially rejecting stimuli (Study 3). The participants were 185 children (11 years-7 months to 12 years-6 months), 248 children (9 years-4 months to 11 years-8 months) and 140 children (8 years-10 months to 12 years-10 months) in the three studies, respectively. Regression analyses showed that, with depressive symptoms covaried, there were quadratic relations between loneliness and these different measures of hypervigilance to social threat. As hypothesized, only children in the upper range of loneliness demonstrated elevated hostility to ambiguously motivated social exclusion, higher scores on the rejection sensitivity questionnaire, and disengagement difficulties when viewing socially rejecting stimuli. We found that very lonely children are hypersensitive to social threat. 相似文献
202.
Ken Corbett Ph.D. 《Psychoanalytic Dialogues》2013,23(4):353-370
This paper details the diagnostic discourse that has accumulated around feminine boys, including the traditional presuppositions of Gender Identity Disorder (GID). The GID discourse is examined for the ways in which it is built upon unquestioned beliefs about masculinity. Distinct from most modern considerations of gender, no effort has been made to critically theorize gender when thinking about feminine boys; masculinity is as masculinity was. Consequently, we are left with modes of diagnosis and treatment that are out of synch with modern social life, and a set of ideas that do not proceed from an adequate understanding of the range that is masculinity. New sustaining ideals are in play, and in accord with these ideals an argument is made for a new mode of psychotherapeutic address. The traditional individual trauma explanation for GID is questioned. Particular emphasis is given to the ways in which this traditional GID discourse fails to reckon with how masculinity is held in place by the strong arm of regulatory anxiety. A new position that incorporates a greater appreciation for the role of social trauma and melancholia is offered. It is argued that a theory that offers insight into the workings of melancholia as it builds the feminine boy affords a more robust set of ideas through which to contemplate the boy. In turn, we come upon a better avenue of psychotherapeutic action—one that does not employ behavioral strategies that reinforce social exclusion. 相似文献
203.
Visual search for a unique target is impaired when a salient distractor is presented (attentional capture). This phenomenon is said to occur because attention is diverted to a distractor before it reaches the target. Similarly, perception of the second of two targets embedded in a rapid stream of nontargets is impaired, suggesting attentional deprivation due to the processing of the first target (attentional blink). We examined whether these phenomena emerge from a common underlying attentional mechanism by using correlation studies. If these phenomena share a common foundation, the magnitude of these deficits should show within-subject correlations. Participants (N = 135) revealed significant attentional deficits during spatial and temporal capture and the attentional blink tasks. However, no significant correlation was found among these tasks. Experiment 2 (N = 95) replicated this finding using the same procedure as that used in Experiment 1 but included another attentional blink task that required spatial switching between the two targets. Strong correlations emerged only between the two attentional blink tasks (with/without spatial switching). The present results suggest that attentional deficits during spatial and temporal capture and the attentional blink tasks reflect different aspects of attention. 相似文献
204.
The present study examined strategic factors in a semantic-priming, lexical-decision task. The first experiment demonstrated that the greater the proportion of related word-word pairs to unrelated word-word pairs, the greater the amount of facilitation, a result which is consistent with others reported in the literature. The second experiment demonstrated that this strategic factor apparently requires that sufficient time (at least several hundred milliseconds) be available for the processing of the priming word, and thus is probably caused by attention-driven processes. The third experiment replicated and extended the results of the first two studies by demonstrating that prime-target stimulus onset asynchrony is an important limiting factor in determining whether such proportion-induced strategic factors are involved in word-recognition processes, even when no other aspect or variable of the procedure changes. The results are discussed in the context of Posner and Snyder’s (1975a) two-process model of word recognition. 相似文献
205.
206.
Ken Binmore 《Topoi》2008,27(1-2):17-27
Do conventions need to be common knowledge in order to work? David Lewis builds this requirement into his definition of a convention. This paper explores the extent to which his approach finds support in the game theory literature. The knowledge formalism developed by Robert Aumann and others militates against Lewis’s approach, because it shows that it is almost impossible for something to become common knowledge in a large society. On the other hand, Ariel Rubinstein’s Email Game suggests that coordinated action is no less hard for rational players without a common knowledge requirement. But an unnecessary simplifying assumption in the Email Game turns out to be doing all the work, and the current paper concludes that common knowledge is better excluded from a definition of the conventions that we use to regulate our daily lives. 相似文献
207.
There is evidence, beginning with Cheng (1986), that mobile animals may use the geometry of surrounding areas to reorient
following disorientation. Gallistel (1990) proposed that geometry is used to compute the major or minor axes of space and
suggested that such information might form an encapsulated cognitive module. Research reviewed here, conducted on a wide variety
of species since the initial discovery of the use of geometry and the formulation of the modularity claim, has supported some
aspects of the approach, while casting doubt on others. Three possible processing models are presented that vary in the way
in which (and the extent to which) they instantiate the modularity claim. The extant data do not permit us to discriminate
among them. We propose a modified concept of modularity for which an empirical program of research is more tractable. 相似文献
208.
Lymnaea stagnalis were operantly conditioned to not perform aerial respiratory behaviour in a specific context (i.e. context-1). The memory for this learned response was reactivated 3 days later in context-1. During the 1 h reconsolidation period following memory reactivation, randomly picked snails were either maintained in context-1 or exposed to a new context (i.e. context-2). One hour later in the post-reconsolidation period, snails in context-1 were placed for 1 h in context-2 and vice-versa. In neither the hypoxic reconsolidation nor the post reconsolidation periods did snails receive a reinforcing stimulus when they opened their pneumostome. All snails were blindly tested for memory 24 h later period in context-2. Only those snails that had been exposed to context-2 during the reconsolidation period exhibited 'memory' for context-2. That is, memory infidelity was observed. Snails exposed to context-2 in only the post-reconsolidation period did not show memory for context-2. The immediate cooling of snails after their exposure to the new context in the reconsolidation period blocked the formation the implanted memory. Snails trained in context-1 and exposed to context-2 in the consolidation period only, also did not have memory for context-2. However, the memory for context-1 could still be recalled following successful implantation of the 'new' memory. All data presented here are consistent with the notion that during the reconsolidation process memory can be updated. 相似文献
209.
The impact of abrupt-onset cues on memory search was investigated, where the abrupt-onset cue was a valid (Experiment 1), random (Experiment 2), or irrelevant (Experiment 3) predictor of the location containing the test probe. In Experiment 4, the abrupt-onset cue either preceded or followed the test probe. Sternberg-like functions were obtained in Experiments 1 and 2, with the effects of the abrupt-onset cue localized primarily in the intercept rather than the slope. Experiment 3 demonstrated that a spatially separated and irrelevant abrupt-onset cue increased latency even when all memory probes occurred at the fixation point. In Experiment 4, the robust impact of an abrupt-onset cue vanished, regardless of stimulus onset asynchrony, when it followed the target. We concluded that abrupt-onset cues captured attention regardless of their predictability, manifested as a delaying of search. However, once attention was captured by the target, a subsequent abrupt-onset stimulus had no effect. These results were discussed in terms of diffuse attention and contingent capture models of attention. 相似文献
210.