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      Orienting attention in visual space by nociceptive stimuli: investigation with a temporal order judgment task based on the adaptive PSI method.

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          Abstract

          Despite their high relevance for defending the integrity of the body, crossmodal links between nociception, the neural system specifically coding potentially painful information, and vision are still poorly studied, especially the effects of nociception on visual perception. This study investigated if, and in which time window, a nociceptive stimulus can attract attention to its location on the body, independently of voluntary control, to facilitate the processing of visual stimuli occurring in the same side of space as the limb on which the visual stimulus was applied. In a temporal order judgment task based on an adaptive procedure, participants judged which of two visual stimuli, one presented next to either hand in either side of space, had been perceived first. Each pair of visual stimuli was preceded (by 200, 400, or 600 ms) by a nociceptive stimulus applied either unilaterally on one single hand, or bilaterally, on both hands simultaneously. Results show that, as compared to the bilateral condition, participants' judgments were biased to the advantage of the visual stimuli that occurred in the same side of space as the hand on which a unilateral, nociceptive stimulus was applied. This effect was present in a time window ranging from 200 to 600 ms, but importantly, biases increased with decreasing time interval. These results suggest that nociceptive stimuli can affect the perceptual processing of spatially congruent visual inputs.

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          Author and article information

          Journal
          Exp Brain Res
          Experimental brain research
          Springer Nature
          1432-1106
          0014-4819
          July 2017
          : 235
          : 7
          Affiliations
          [1 ] Institute of Neuroscience, Université catholique de Louvain, Brussels, Avenue Mounier 53, boite COSY B1.53.04, 1200, Brussels, Belgium. lieve.filbrich@uclouvain.be.
          [2 ] Institute of Neuroscience, Université catholique de Louvain, Brussels, Avenue Mounier 53, boite COSY B1.53.04, 1200, Brussels, Belgium.
          Article
          10.1007/s00221-017-4951-2
          10.1007/s00221-017-4951-2
          28374087
          7d334b6f-a5c4-4d2f-a963-dca8bb6978dc
          History

          Adaptive,Crossmodal attention,Nociception,Temporal order judgments,Vision

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