ῘῚ῝̯̮῟Ίῐῌ῎ῒ̮̮̮ῑ̯̮῞ΐῗ῏ῖῙῑ̮῍ῑ̮
Q Q Q Q῎ΐ Q Q ῑ̮ QQ ῒThe e#ects of orientation specificity in spatial memory and body orientation on directional judgments Hironori OTO and Shinsuke HISHITANI ( Hokkaido Universitiy) Two experiments were conducted to examine the e#ects of orientation specificity in spatial memory and body orientation on directional judgments. In Experiment 1, 27 undergraduates were asked to make judgments concerning relative directions on their campus. They were asked to imagine being at one campus location, facing in a particular direction, and to judge the direction of an unseen target with respect to the imagined position. In Experiment 2, 28 undergraduates were asked to make judgments concerning a path within room. The results indicate that judgments were fastest when the imagined directions were aligned with both preterred orientation of longterm spatial memory and body orientation and were slower when any of these directions were out of alignment.
This paper investigated the role of visuo-spatial working memory in distance estimation during map learning. Participants were asked to learn a map and perform a distance estimation task on the basis of the memorized map. The capacities of visual (i.e. visual cache) and spatial (i.e. inner scribe) components of visuo-spatial working memory were assessed for each participant and distance estimate errors were compared across high and low visuo-spatial capacity participants. The visual component predicted performance accuracy. In addition, low visual capacity participants provided longer distance estimates between two locations as a function of the number of intervening points between them. Although spatial component capacity also predicted estimated distances, it did not affect performance accuracy or estimated distance bias as a function of intervening points. It appears that distance is estimated on the basis of visual component capacity, and that low visual capacity individuals try to draw upon non-spatial information to support a limited visual capacity.
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