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https://hdl.handle.net/2440/91264
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dc.contributor.author | Stewart, E. | - |
dc.contributor.author | Ma-Wyatt, A. | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | Journal of Vision, 2015; 15(5):10-10 | - |
dc.identifier.issn | 1534-7362 | - |
dc.identifier.issn | 1534-7362 | - |
dc.identifier.uri | http://hdl.handle.net/2440/91264 | - |
dc.description.abstract | While the attentional shift preceding a saccadic eye movement has been well documented, the mechanisms surrounding the attentional shift preceding a reach are not well understood. It is unknown whether these mechanisms may be the same as those used in perceptual tasks, or those used in the planning of a saccade. We mapped the spatiotemporal properties of attention relative to a reach to determine the time course of attentional facilitation for hand movements alone. Participants had to reach toward a target and during the reach a perceptual probe could appear at one of six locations around the target, and at nine temporal offsets relative to the cue. Results showed a consistent pattern of facilitation in the planning stages of the reach, with attention increasing and then reaching a plateau during the completion of the movement before dropping off. These results demonstrate that planning a hand movement necessitates a shift in attention across the visual field around 150 ms before the onset of a reach. While these results are broadly consistent with the results of experiments mapping attentional shifts for saccades, the spatiotemporal profile of facilitation found shows that reaching without a concurrent eye movement also causes shifts in attention across the visual field. These results also suggest that the profile of the attentional shift preceding and during a hand movement is different at different locations across the visual field. | - |
dc.description.statementofresponsibility | Emma E. M. Stewart; Anna Ma-Wyatt | - |
dc.language.iso | en | - |
dc.publisher | Association for Research in Vision and Ophthalmology | - |
dc.source.uri | http://jov.arvojournals.org/Article.aspx?articleid=2276778 | - |
dc.subject | Humans | - |
dc.subject | Attention | - |
dc.subject | Visual Fields | - |
dc.subject | Saccades | - |
dc.subject | Adult | - |
dc.subject | Female | - |
dc.subject | Male | - |
dc.subject | Young Adult | - |
dc.subject | Spatio-Temporal Analysis | - |
dc.title | The spatiotemporal characteristics of the attentional shift relative to a reach | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1167/15.5.10 | - |
pubs.publication-status | Published | - |
Appears in Collections: | Aurora harvest 2 Psychology publications |
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