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11.
Douglas M. Klieger Martin E. Franklin 《Journal of psychopathology and behavioral assessment》1993,15(3):207-217
The Fear Survey Schedule III, developed by Wolpe and Lang (1969, 1977), is used frequently to classify subjects as phobic or nonphobic. Subjects selected for their intense-fear scores on blood, fire, bat, and snake items did not significantly differ from no-fear subjects on an objective behavioral assessment test. Analyses of subject verbal reports suggest several possibilities for the inability to discriminate between fearful and nonfearful subjects. Researchers are cautioned about the use of the Fear Survey Schedule for selecting phobic subjects without supporting evidence. 相似文献
12.
Horowitz TS Klieger SB Fencsik DE Yang KK Alvarez GA Wolfe JM 《Perception & psychophysics》2007,69(2):172-184
Is content addressable in the representation that subserves performance in multiple-object-tracking (MOT) experiments? We devised an MOT variant that featured unique, nameable objects (cartoon animals) as stimuli. There were two possible response modes: standard, in which observers were asked to report the locations of all target items, and specific, in which observers had to report the location of a particular object (e.g., "Where is the zebra?"). A measure of capacity derived from accuracy allowed for comparisons of the results between conditions. We found that capacity in the specific condition (1.4 to 2.6 items across several experiments) was always reliably lower than capacity in the standard condition (2.3 to 3.4 items). Observers could locate specific objects, indicating a content-addressable representation. However, capacity differences between conditions, as well as differing responses to the experimental manipulations, suggest that there may be two separate systems involved in tracking, one carrying only positional information, and one carrying identity information as well. 相似文献
13.
Observers in a multiple object tracking task can track about four to five independently moving targets among several moving distractors, even if all of the stimuli disappear for a 300-msec gap. How observers reacquire targets following such a gap reveals what kind of information they can maintain for targets. Previous research has suggested that participants maintain minimal information about a set of moving objects--namely, just their present spatial locations. We report five new experiments that demonstrate retention of location information for at least four objects, and extrapolated motion information for around two objects. 相似文献