The Spatial and Temporal Deployment of Voluntary Attention across the Visual Field

Guilhem Ibos, Jean-René Duhamel and Suliann Ben Hamed

PLOS ONE, 2009, vol. 4, issue 8, 1-8

Abstract: Several studies have addressed the question of the time it takes for attention to shift from one position in space to another. Here we present a behavioural paradigm which offers a direct access to an estimate of voluntary shift time by comparing, in the same task, a situation in which subjects are required to re-engage their attention at the same spatial location with a situation in which they need to shift their attention to another location, all other sensory, cognitive and motor parameters being equal. We show that spatial attention takes on average 55 ms to voluntarily shift from one hemifield to the other and 38 ms to shift within the same hemifield. In addition, we show that across and within hemifields attentional processes are different. In particular, attentional spotlight division appears to be more difficult to operate within than across hemifields.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0006716

DOI: 10.1371/journal.pone.0006716

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