Journal article
Visual working memory modulates low-level saccade target selection: Evidence from rapidly generated saccades in the global effect paradigm
Journal of vision (Charlottesville, Va.), Vol.13(13), pp.4-4
2013
DOI: 10.1167/13.13.4
PMCID: PMC3817959
PMID: 24190909
Abstract
In three experiments, we examined the influence of visual working memory (VWM) on the metrics of saccade landing position in a global effect paradigm. Participants executed a saccade to the more eccentric object in an object pair appearing on the horizontal midline, to the left or right of central fixation. While completing the saccade task, participants maintained a color in VWM for an unrelated memory task. Either the color of the saccade target matched the memory color (target match), the color of the distractor matched the memory color (distractor match), or the colors of neither object matched the memory color (no match). In the no-match condition, saccades tended to land at the midpoint between the two objects: the global, or averaging, effect. However, when one of the two objects matched VWM, the distribution of landing position shifted toward the matching object, both for target match and for distractor match. VWM modulation of landing position was observed even for the fastest quartile of saccades, with a mean latency as low as 112 ms. Effects of VWM on such rapidly generated saccades, with latencies in the express-saccade range, indicate that VWM interacts with the initial sweep of visual sensory processing, modulating perceptual input to oculomotor systems and thereby biasing oculomotor selection. As a result, differences in memory match produce effects on landing position similar to the effects generated by differences in physical salience.
Details
- Title: Subtitle
- Visual working memory modulates low-level saccade target selection: Evidence from rapidly generated saccades in the global effect paradigm
- Creators
- Andrew Hollingworth - Department of Psychology, University of Iowa, Iowa City, IA, USAMichi Matsukura - Department of Psychology, University of Iowa, Iowa City, IA, USASteven J Luck - Center for Mind & Brain and Department of Psychology, University of California, Davis, CA, USA
- Resource Type
- Journal article
- Publication Details
- Journal of vision (Charlottesville, Va.), Vol.13(13), pp.4-4
- Publisher
- The Association for Research in Vision and Ophthalmology
- DOI
- 10.1167/13.13.4
- PMID
- 24190909
- PMCID
- PMC3817959
- ISSN
- 1534-7362
- eISSN
- 1534-7362
- Language
- English
- Date published
- 2013
- Academic Unit
- Psychological and Brain Sciences
- Record Identifier
- 9984213270202771
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