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ERIC Number: EJ944380
Record Type: Journal
Publication Date: 2011-Nov
Pages: 6
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0278-2626
Effects of the Global and Local Attention on the Processing of Categorical and Coordinate Spatial Relations
Michimata, Chikashi; Saneyoshi, Ayako; Okubo, Matia; Laeng, Bruno
Brain and Cognition, v77 n2 p292-297 Nov 2011
Participants made categorical or coordinate spatial judgments on the global or local elements of shapes. Stimuli were composed of a horizontal line and two dots. In the Categorical task, participants judged whether the line was above or below the dots. In the Coordinate task, they judged whether the line would fit between the dots. Stimuli were made hierarchical so that the global patterns composed of a "global line" made of local dots-and-line units, and "global dot" made of a single dots-and-line unit. The results indicated that the categorical task was better performed when participants attended to the local level of the hierarchical stimuli. On the other hand, the coordinate task was better performed when they attended to the global level. These findings are consistent with computer simulation models of the attentional modulation of neuronal receptive fields' size suggesting that (1) coordinate spatial relations are more efficiently encoded when one attends to a relatively large region of space, whereas (2) categorical spatial relations are more efficiently encoded when one attends to a relatively small region of space. (Contains 2 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A