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Attending to the possibilities of action
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Humphreys, G. W., Kumar, S., Yoon, E. Y., Wulff, M., Roberts, Katherine L. and Riddoch, M. J. (2013) Attending to the possibilities of action. Philosophical Transactions of the Royal Society B : Biological Sciences, Volume 368 (Number 1628). Article number 20130059. doi:10.1098/rstb.2013.0059 ISSN 0962-8436.
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Official URL: http://dx.doi.org/10.1098/rstb.2013.0059
Abstract
Actions taking place in the environment are critical for our survival. We review evidence on attention to action, drawing on sets of converging evidence from neuropsychological patients through to studies of the time course and neural locus of action-based cueing of attention in normal observers. We show that the presence of action relations between stimuli helps reduce visual extinction in patients with limited attention to the contralesional side of space, while the first saccades made by normal observers and early perceptual and attentional responses measured using electroencephalography/event-related potentials are modulated by preparation of action and by seeing objects being grasped correctly or incorrectly for action. With both normal observers and patients, there is evidence for two components to these effects based on both visual perceptual and motor-based responses. While the perceptual responses reflect factors such as the visual familiarity of the action-related information, the motor response component is determined by factors such as the alignment of the objects with the observer's effectors and not by the visual familiarity of the stimuli. In addition to this, we suggest that action relations between stimuli can be coded pre-attentively, in the absence of attention to the stimulus, and action relations cue perceptual and motor responses rapidly and automatically. At present, formal theories of visual attention are not set up to account for these action-related effects; we suggest ways that theories could be expected to enable action effects to be incorporated.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology | ||||
Journal or Publication Title: | Philosophical Transactions of the Royal Society B : Biological Sciences | ||||
Publisher: | Royal Society Publishing | ||||
ISSN: | 0962-8436 | ||||
Official Date: | 9 September 2013 | ||||
Dates: |
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Volume: | Volume 368 | ||||
Number: | Number 1628 | ||||
Article Number: | Article number 20130059 | ||||
DOI: | 10.1098/rstb.2013.0059 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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