AI Article Synopsis
- The study examined how pain (nociceptive stimuli) affects the processing of visual cues, focusing on their spatial alignment.
- Participants made judgments about the timing of visual stimuli near their hand, with the hand sometimes experiencing pain, while other visual stimuli were presented to the left or right.
- Results showed that participants consistently favored visual stimuli near the painful hand, suggesting that pain influences how we integrate sensory information from different modalities into a unified perception of space.
Article Abstract
The present study investigated the influence of nociceptive stimuli on visual stimuli processing according to the relative spatial congruence between the two stimuli of different sensory modalities. Participants performed temporal order judgments on pairs of visual stimuli, one presented near the hand on which nociceptive stimuli were occasionally applied, the other one either to its left or to its right. The visual hemifield in which the stimulated hand and the near visual stimulus appeared was manipulated by changing gaze direction. The stimulated hemibody and the stimulated visual hemifield were therefore either congruent or incongruent, in terms of anatomical locations. Despite the changes in anatomical congruence, judgments were always biased in favor of the visual stimuli presented near the stimulated hand. This indicates that nociceptive-visual interaction may rely on a realignment of the respective initial anatomical representations of the somatic and retinotopic spaces toward an integrated, multimodal representation of external space.
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| http://dx.doi.org/10.1016/j.concog.2017.11.011 | DOI Listing |
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