June 2006
Volume 6, Issue 6
Free
Vision Sciences Society Annual Meeting Abstract  |   June 2006
Effects of spatial and non-spatial working memory on location- and object-based attention
Author Affiliations
  • Wei-Lun Chou
    Department of Psychology, National Taiwan University
  • Su-Ling Yeh
    Department of Psychology, National Taiwan University
Journal of Vision June 2006, Vol.6, 129. doi:10.1167/6.6.129
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      Wei-Lun Chou, Su-Ling Yeh; Effects of spatial and non-spatial working memory on location- and object-based attention. Journal of Vision 2006;6(6):129. doi: 10.1167/6.6.129.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

A visual object inherently occupies a location, and a spatial location cannot be marked without some entity. Such an interwoven relationship between objects and locations has made the dissociation between object- and location-based attentional selection difficult. In a series of experiments, we examine whether the two kinds of selection can be modulated by different kinds of working memory tasks, and how stimulus configuration affects such modulation. A dual-task paradigm was used, in which the primary task was associated with a location or an object, and the secondary task involved either spatial or non-spatial working memory. Results from the first two sets of experiments revealed that location-based selection was affected by a secondary task that involved spatial working memory, whereas object-based selection was affected by a secondary task that involved non-spatial working memory. Changing the configuration of the stimuli influenced the modulation effects of the two kinds of working memory tasks accordingly. As spatial and non-spatial working memory modulate location- and object-based attention respectively, the double dissociation we have obtained in this study helps to disentangle object- and location-based attention, and provides a useful index for probing either one or both.

Chou, W.-L. Yeh, S.-L. (2006). Effects of spatial and non-spatial working memory on location- and object-based attention [Abstract]. Journal of Vision, 6(6):129, 129a, http://journalofvision.org/6/6/129/, doi:10.1167/6.6.129. [CrossRef]
Footnotes
 This study is supported by the National Science Council of Taiwan, NSC94-2752-H-002-008-PAE
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