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211.
212.
Three experiments assessed whether perceived stimulus duration depends on whether participants process an expected or an unexpected visual stimulus. Participants compared the duration of a constant standard stimulus with a variable comparison stimulus. Changes in expectancy were induced by presenting one type of comparison more frequently than another type. Experiment 1 used standard durations of 100 and 400 ms, and Experiments 2 and 3 durations of 400 and 800 ms. Stimulus frequency did not affect perceived duration in Experiment 1. In Experiments 2 and 3, however, frequent comparisons were perceived as shorter than infrequent ones, and discrimination performance was better for infrequent comparisons. Overall, this study supports the notion that infrequent stimuli increase the speed of an internal pacemaker. 相似文献
213.
Previous reports have demonstrated that the comprehension of sentences describing motion in a particular direction (toward, away, up, or down) is affected by concurrently viewing a stimulus that depicts motion in the same or opposite direction. We report 3 experiments that extend our understanding of the relation between perception and language processing in 2 ways. First, whereas most previous studies of the relation between perception and language processing have focused on visual perception, our data show that sentence processing can be affected by the concurrent processing of auditory stimuli. Second, it is shown that the relation between the processing of auditory stimuli and the processing of sentences depends on whether the sentences are presented in the auditory or visual modality. 相似文献
214.
Mayr U 《Psychonomic bulletin & review》2006,13(5):794-799
Schneider and Logan (2006) recently showed that cue-switch and task-switch costs are sensitive to the relative probability
of cue switches versus task switches. From this they concluded that taskswitch costs reflect priming of cue-cue transitions
rather than actual task-switching operations. However, because this design confounded probability of specific cue transitions
with probability of task switches, the results could also reflect task-switch-level adjustments. The present experiment (N = 80) pits the critical prediction of the cue-priming account, namely that costs for high-probability cue-cue transitions
are smaller than for low-probability cue-cue transitions, against the main prediction of the switch-probability account, namely
that switch probability, irrespective of specific cue-cue transitions, determines switch costs. Whereas the cue-priming prediction
was rejected, a specific version of the probability account—that subjects are sensitive to the probability of a task switch,
given a cue switch—was fully confirmed. Thus, tasks are in fact the critical representational units that determine task-switch
cost. 相似文献
215.
On the basis of experiences in pastoral hospital care, the relationship between disease, sin, and guilt in the life of patients is explored. Against the disregard of this subject in medicine, and even in most of pastoral care, it is argued that patients' interest requires that their hidden or manifest questions be addressed, rather than their being exposed to efforts at "helping" through mere attempts at "debt clearance." Only by openly confronting sin and guilt can the patient be taken seriously in his role as subject of his disease. Theological and anthropological background considerations revealing the essence of sin as a disruption or even destruction of the Divine gift of life in its realization through a lived relationship to God and other humans are offered as evidence for this claim. 相似文献
216.
Krampe RT Mayr U Kliegl R 《Journal of experimental psychology. Human perception and performance》2005,31(3):379-397
The authors demonstrate that the timing and sequencing of target durations require low-level timing and executive control. Sixteen young (M-sub(age) = 19 years) and 16 older (M-sub(age) = 70 years) adults participated in 2 experiments. In Experiment 1, individual mean-variance functions for low-level timing (isochronous tapping) and the sequencing of multiple targets (rhythm production) revealed (a) a dissociation of low-level timing and sequencing in both age groups, (b) negligible age differences for low-level timing, and (c) large age differences for sequencing. Experiment 2 supported the distinction between low-level timing and executive functions: Selection against a dominant rhythm and switching between rhythms impaired performances in both age groups and induced pronounced perseveration of the dominant pattern in older adults. 相似文献
217.
Data from the first five waves of the National Youth Survey were used to test the applicability of the Developmental Pathways model to a nationally representative sample of girls. Overall, girls were less likely to be involved in all types of delinquent behavior, with the majority of girls reporting no delinquent involvement across the five waves of data collected. Using the Developmental Pathways model, similar developmental patterns of antisocial and delinquent involvement were found for girls as have been found for boys. Approximately 70% of involved girls followed most steps in each of the pathways. We also evaluated the relation of family and peer factors to specific pathways and found differences in those relations for boys and girls. For girls, only parental monitoring was related to involvement in one of the three pathways. For boys, specific relations were found between family and peer variables and each of the three developmental pathways. As with previous studies on girls involvement in disruptive behavior, these results suggest some general consistency in patterns with that of boys, although differences in frequency and predictors of risk. 相似文献
218.
Previous findings are inconsistent with regard to whether men are judged as being more or less competent leaders than women. However, masculine-relative to feminine-looking persons seem to be judged consistently as more competent leaders. Can this different impact of biological sex and physical appearance be due to the disparate availability of meta-cognitive knowledge about both sources? The results of Study 1 indicated that individuals possess meta-cognitive knowledge about a possible biasing influence of persons' biological sex, but not for their physical appearance. In Study 2, participants judged the leadership competence of a male versus female stimulus person with either masculine or feminine physical appearance. In addition, the available cognitive capacity was manipulated. When high capacity was available, participants corrected for the influence of stimulus persons' sex, but they fell prey to this influence under cognitive load. However, the effect of physical appearance was not moderated by cognitive capacity. 相似文献
219.
Perceptual fluency is the subjective experience of ease with which an incoming stimulus is processed. Although perceptual fluency is assessed by speed of processing, it remains unclear how objective speed is related to subjective experiences of fluency. We present evidence that speed at different stages of the perceptual process contributes to perceptual fluency. In an experiment, figure-ground contrast influenced detection of briefly presented words, but not their identification at longer exposure durations. Conversely, font in which the word was written influenced identification, but not detection. Both contrast and font influenced subjective fluency. These findings suggest that speed of processing at different stages condensed into a unified subjective experience of perceptual fluency. 相似文献
220.
Older and younger participants read sentences about objects and were then shown a picture of an object that either matched or mismatched the implied shape of the object in the sentence. Participants' response times were recorded when they judged whether the object had been mentioned in the sentence. Responses were faster in the shape-matching condition for all participants, but the mismatch effect was stronger for older than for younger adults, even when the larger variability of the older group's response times was controlled for. These results suggest that older adults may construct stronger situation models than younger adults. 相似文献