ERIC Number: ED223246
Record Type: Non-Journal
Publication Date: 1980
Reference Count: N/A
Effects of Spatial Configuration on Search of Visual Displays. Umea Psychological Reports No. 151.
The visual scanning of redundant and random spatial configurations of two-digit numbers was investigated in a target recognition task. The experimental technique involved a brief exposure of a probe (a two-digit number) at the center of the visual field, followed by a spatial pattern of 16 two-digit numbers which included the matching target in half the number of trials. The experiment was run and controlled by a PDP 8/e computer, and five different display types, varying in spatial order of elements, boundaries of the stimulus field, and grouping of the elements, were presented on an alpha-numeric display. The correlation between the spatial and numerical orders of the stimulus elements was either perfect or zero. An ordered scanning occurred for systematic spatial configurations, while for the random configurations, recognition seemed to be based on the perceived clarity of elements. Performance was facilitated when the spatial and numerical orders of the elements were related, but was detrimental when they were unrelated. For random spatial configurations, the recognition of the target was dependent on its distance to the point of fixation and independent of the numerical relations. The general effects were more pronounced when the subjects were informed about the relation between spatial and numerical order. Data tables and 15 references are included in this report. (Author/LMM)
Publication Type: Reports - Research
Education Level: N/A
Sponsor: Swedish Council for Social Science Research, Stockholm.
Authoring Institution: Umea Univ. (Sweden).