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161.
Contingent visual marking by transients 总被引:1,自引:0,他引:1
Preview search is a phenomenon in which a set of new items can be searched with seemingly no interference from items already present in the display. The preview effect has been shown to occur only when the presentation of the new items is accompanied by a luminance change (Donk & Theeuwes, 2001). In a series of experiments, we extend the type of transients that can lead to a preview benefit to offsets and motion, and confirm Donk and Theeuwes's finding that equiluminant color changes do not lead to a preview effect. Like Donk and Theeuwes, we find that preview search does not occur when only the old items undergo a transient change, suggesting that the processes responsible for preview search are triggered when the new items undergo a change detectable by the magnocellular system. In addition, we find that irrelevant transients interfere with preview search only when they match the current attentional set (e.g., luminance change or motion). Results suggest that preview search is not the automatic capture of attention by transients, but rather is contingent on top-down control settings. 相似文献
162.
How much memory does oculomotor search have? 总被引:4,自引:0,他引:4
Research has demonstrated that oculomotor visual search is guided by memory for which items or locations within a display have already been inspected. In the study reported here, we used a gaze-contingent search paradigm to examine properties of this memory. Data revealed a memory buffer for search history of three to four items. This buffer was effected in part by a space-based trace attached to a location independently of whether the object that had been seen at that position remained visible, and was subject to interference from other stimuli seen in the course of a trial. 相似文献
163.
The present study addressed whether the allocation of attention to a particular region in space can prevent processing of distractor information from non-attended regions. A cue indicated the area in visual space where the target singleton would be presented. Observers were required to detect this target singleton and ignore a distractor singleton presented within a non-attended region. The results indicate that the allocation of attention to a region in space cannot prevent the processing of unwanted information from elsewhere in the visual field. It is concluded that the function of the allocation of attention is not to enhance the processing capacity within the attended region but rather to attenuate interference from distractors in unattended regions. 相似文献
164.
Visual search has memory 总被引:9,自引:0,他引:9
By monitoring subjects' eye movements during a visual search task, we examined the possibility that the mechanism responsible for guiding attention during visual search has no memory for which locations have already been examined. Subjects did reexamine some items during their search, but the pattern of revisitations did not fit the predictions of the memoryless search model. In addition, a large proportion of the refixations were directed at the target, suggesting that the revisitations were due to subjects' remembering which items had not been adequately identified. We also examined the patterns of fixations and compared them with the predictions of a memoryless search model. Subjects' fixation patterns showed an increasing hazard function, whereas the memoryless model predicts a flat function. Lastly, we found no evidence suggesting that fixations were guided by amnesic covert scans that scouted the environment for new items during fixations. Results do not support the claims of the memoryless search model, and instead suggest that visual search does have memory. 相似文献
165.
166.
F. Richard Ferraro Rachel Kramer Stephanie Weigel 《The Journal of general psychology》2018,145(1):79-92
We applied Brinley (1965) plot analysis to the eating disorders field. Across 23 studies and 165 experimental conditions [experienced by a total of 773 eating disorder (ED) participants, including anorexia nervosa (AN), binge eating (BE), bulimia nervosa (BN), and eating disorders not otherwise specified (EDNOS) and 995 controls], the best-fit regression equation was Y (ED) = 1.08 X (CONTROL) – 31. This equation accounted for 98.2% of the variance. Thus, the ED subjects were only 1.08 times slower than the control subjects, suggesting little processing speed slowing in ED. We also examined simple reaction time [SRT; Y (ED) = .91 X (CONTROL) + 63; variance accounted for = 93.6%] and choice reaction time (CRT; Y (ED) = 1.12X (CONTROL) – 43, variance accounted for = 99.7%). These slopes are significantly different. ED subjects are more impacted when the task involves a decision component (CRT) than when it does not (SRT). 相似文献
167.
In this study, 107 boys and girls aged 3 to 8 years were rated by their mothers on 6 factors: Reactive and Proactive Aggression, Secure and Insecure Attachment, and Prosocial Orientation and Social Initiative (i.e., social competence). Both secure attachment and prosocial orientation predicted proactive and reactive aggression, but prosocial orientation mediated the attachment-aggression relation in the case of reactive but not proactive aggression. 相似文献
168.
Influence of stimulus repetition on negative priming. 总被引:2,自引:0,他引:2
Potential age-related differences in the influence of stimulus repetition on negative and positive priming were investigated in a same-different picture comparison task. Forty-eight young adults and 48 old adults compared a target picture of a familiar object with a standard picture of a familiar object to determine if they were the same or different, while ignoring an overlapping distractor picture presented in a different color. Negative priming effects increased in magnitude with the repetition of the experimental stimuli in a similar fashion for both young and old adults. Conversely, positive priming effects decreased in magnitude with increases in stimulus repetition for both young and old adults. These data suggest that identity-based inhibition develops in a similar fashion from young adulthood to old age. Furthermore, these data add to the growing body of studies that suggest age invariance in the ability to inhibit task-irrelevant information in the environment on the basis of stimulus identity. 相似文献
169.
The authors examined the ability of younger and older adults to detect changes in dynamic displays. Older and younger adults viewed displays containing numerous moving objects and were asked to respond when a new object was added to the display. Accuracy, response times, and eye movements were recorded. For both younger and older participants, the number of eye movements accounted for a large proportion of variance in transient detection performance. Participants who actively searched for the change performed significantly worse than did participants who employed a passive or covert scan strategy, indicating that passive scanning may be a beneficial strategy in certain dynamic environments. The cost of an active scan strategy was especially high for older participants in terms of both accuracy and response times. However, older adults who employed a passive or covert scan strategy showed greater improvement, relative to older active searchers, than did younger adults. These results highlight the importance of individual differences in scanning strategy in real-world dynamic, cluttered environments. 相似文献
170.
Linking antisocial behavior, substance use, and personality: an integrative quantitative model of the adult externalizing spectrum 总被引:1,自引:0,他引:1
Krueger RF Markon KE Patrick CJ Benning SD Kramer MD 《Journal of abnormal psychology》2007,116(4):645-666
Antisocial behavior, substance use, and impulsive and aggressive personality traits often co-occur, forming a coherent spectrum of personality and psychopathology. In the current research, the authors developed a novel quantitative model of this spectrum. Over 3 waves of iterative data collection, 1,787 adult participants selected to represent a range across the externalizing spectrum provided extensive data about specific externalizing behaviors. Statistical methods such as item response theory and semiparametric factor analysis were used to model these data. The model and assessment instrument that emerged from the research shows how externalizing phenomena are organized hierarchically and cover a wide range of individual differences. The authors discuss the utility of this model for framing research on the correlates and the etiology of externalizing phenomena. 相似文献