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排序方式: 共有78条查询结果,搜索用时 15 毫秒
21.
Adrienne S. Juarascio Stephanie M. Manasse Leah Schumacher Hallie Espel Evan M. Forman 《Cognitive and behavioral practice》2017,24(1):1-13
Binge eating disorder (BED), characterized by recurrent eating episodes in which individuals eat an objectively large amount of food within a short time period accompanied by a sense of loss of control, is the most common eating disorder. While existing treatments, such as cognitive behavioral therapy (CBT), produce remission in a large percentage of individuals with BED, room for improvement in outcomes remains. Two reasons some patients may continue to experience binge eating after a course of treatment are: (a) Difficulty complying with the prescribed behavioral components of CBT due to the discomfort of implementing such strategies; and (b) a lack of focus in current treatments on strategies for coping with high levels of negative affect that often drive binge eating. To optimize treatment outcomes, it is therefore crucial to provide patients with strategies to overcome these issues. A small but growing body of research suggests that acceptance-based treatment approaches may be effective for the treatment of binge eating. The goal of the current paper is to describe the development of an acceptance-based group treatment for BED, discuss the structure of the manual and the rationale and challenges associated with integrating acceptance-based strategies into a CBT protocol, and to discuss clinical strategies for successfully implementing the intervention. 相似文献
22.
The neurocognitive architecture for response selection is uncertain. Some theorists suggest that it is mediated by an amodal
central mechanism, whereas others propose a set of independent control mechanisms. In a functional neuroimaging experiment,
we investigated the nature of response selection by examining how its underlying brain mechanisms are affected by stimulus
modality. To do this, we used a modified flanker task, in which the target and flanker (distractor) stimuli differed in time
rather than space, making it accessible for both visual and auditory stimuli. As in the traditional flanker task, larger reaction
times were observed for incongruent than congruent trials (i.e., a congruency effect) for both modalities. Congruency affected
brain activation for both modalities in prefrontal cortex, parietal cortex, and the putamen. Modality-dependent activation
was found in additional prefrontal and parietal regions for the visual modality and in left inferior prefrontal cortex for
the auditory modality. Modality-dependent activity specifically related to response congruency was also found in sensory cortical
regions. These data suggest that modality affects the brain regions throughout the cortex mediating response selection even
for conceptually identical stimuli and tasks. They are consistent with the hypothesis that (at least partially) independent
brain networks mediate response selection and that input modality may be a powerful factor for organizing neural activity
to support task performance. 相似文献
23.
Schumacher R 《Perception》2008,37(3):433-445
This paper focuses on the epistemic conditions of visual perception, ie it concentrates on the question of what kind of knowledge is required for us in order to be able to see colours and shapes as spatial properties of things. According to contemporary theories of sensory perception that follow the tradition of George Berkeley, like Alva Noe's so-called enactive approach to perception, this type of visual perception requires a certain kind of implicit practical knowledge, namely implicit sensorimotor knowledge of the way sensory stimulation varies as the perceiver moves. Two objections are presented against this central claim of the enactive approach. First, empirical evidence from psychological research on children's cognitive and motor development suggests that visual content is entirely independent of sensorimotor knowledge. Second, the enactive approach gets involved in the characteristic problems of classical sense--datum theories by introducing the extremely problematic claim that the recognition of appearances is the epistemic starting point for the perception of things and their properties. 相似文献
24.
In two experiments, we investigated the processing of extrafoveal objects in a double-object naming task. On most trials, participants named two objects; but on some trials, the objects were replaced shortly after trial onset by a written word probe, which participants had to name instead of the objects. In Experiment 1, the word was presented in the same location as the left object either 150 or 350 msec after trial onset and was either phonologically related or unrelated to that object name. Phonological facilitation was observed at the later but not at the earlier SOA. In Experiment 2, the word was either phonologically related or unrelated to the right object and was presented 150 msec after the speaker had begun to inspect that object. In contrast with Experiment 1, phonological facilitation was found at this early SOA, demonstrating that the speakers had begun to process the right object prior to fixation. 相似文献
25.
26.
Apomorphine is known to improve the retention performance of a brightness discrimination task after post-training intrahippocampal application to rats. The present study shows that the retention performance of dopamine supersensitive rats was improved by a low dose of apomorphine which was still ineffective in control animals. Dopamine supersensitivity by itself had no effect on acquisition and retention parameters of brightness discrimination. The result further supports the assumption that dopamine receptors in rat hippocampus can modulate the formation of memory. 相似文献
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29.
In three experiments, we examined the effect of temporal context in amodal completion of partly occluded nontarget figures. In a primed same-different task, test pairs were preceded by a sequence of two primes, one of which was a single, the other a composite figure. Single figures reappeared in the composite ones, which also contained a square that could be viewed, alternatively, as an occluder or as yielding a mosaic fit to the other shape. To measure context influences between single and composite figures, both of which were nontargets, we studied their combined effect as primes on the test pairs of the same-different task, expecting that congruency between both primes should lead to a superadditive priming effect on the task. We found that single figures presented first provided facilitatory context for local and global occlusion as well as for mosaic interpretations of subsequently presented composite figures. These effects occurred only when the composite figure was presented briefly (50 msec). No superadditive facilitation occurred when composite figures were presented first and single figures followed them. The restriction of the effect to short presentations and its temporal asymmetry were taken as evidence that prior context biases possible occlusion interpretations during the process of completion, rather than afterward. 相似文献
30.
DISSOCIATION OF STORAGE AND REHEARSAL IN VERBAL WORKING MEMORY: 总被引:30,自引:0,他引:30
Edward Awh John Jonides Edward E. Smith Eric H. Schumacher Robert A. Koeppe Stewart Katz 《Psychological science》1996,7(1):25-31
Abstract— Current cognitive models of verbal working memory include two components a phonological store and a rehearsal mechanism that refreshes the contents of this store We present research using positron emission tomography (PET) to provide further evidence for this functional division In Experiment I, subjects performed a variant of Sternberg's (1966) item recognition task Experiment 2 used a continuous memory task with control conditions designed to separate the brain regions underlying storage and rehearsal The results show that independent brain regions mediate storage and rehearsal In Experiment 3, a dual-task procedure supported the assumption that these memory tasks elicited a rehearsal strategy 相似文献