HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Okubo, M. Articles by Michimata, C. Search for Related Content PubMed PubMed Citation Articles by Okubo, M. Articles by Michimata, C.

Hemispheric Processing of Categorical and Coordinate Spatial Relations in the Absence of Low Spatial Frequencies

University of Tokyo

Chikashi Michimata

Sophia University

Right-handed participants performed the categorical and coordinate spatial relation judgments on stimuli presented to either the left visual field—right hemisphere (LVF-RH) or the right visual field—left hemisphere (RVF-LH). The stimulus patterns were formulated either by bright dots or by contrast-balanced dots. When the stimuli were bright, an RVF-LH advantage was observed for the categorical task, whereas an LVF-RH advantage was observed for the coordinate task. When the stimuli were contrast balanced, the RVF-LH advantage was observed for the categorical task, but the LVF-RH advantage was eliminated for the coordinate task. Because the contrast-balanced dots are largely devoid of low spatial frequency content, these results suggest that processing of low spatial frequency is responsible for the right hemisphere advantage for the coordinate spatial processing.

This article has been cited by other articles:

				E. Mercure, F. Dick, H. Halit, J. Kaufman, and M. H. Johnson Differential Lateralization for Words and Faces: Category or Psychophysics? J. Cogn. Neurosci., November 1, 2008; 20(11): 2070 - 2087. [Abstract] [Full Text] [PDF]

				M. Okubo and C. Michimata The Role of High Spatial Frequencies in Hemispheric Processing of Categorical and Coordinate Spatial Relations J. Cogn. Neurosci., November 1, 2004; 16(9): 1576 - 1582. [Abstract] [Full Text] [PDF]