Seeing an image of the hand affects performance on a crossmodal congruency task for sequences of events

•The spatial CCE is larger when viewing an image of a hand than object.•We tested this effect for visuotactile temporal numerosity judgements.•The CCE was unaffected by stimulus context or hand identity.•Performance improved when images of hands were presented with faces/names.•Stimulus context infl...

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Veröffentlicht in:Consciousness and cognition 2020-04, Vol.80, p.102900-17, Article 102900
Hauptverfasser: O' Dowd, Alan, Sorgini, Francesca, Newell, Fiona N.
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Sprache:eng
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Zusammenfassung:•The spatial CCE is larger when viewing an image of a hand than object.•We tested this effect for visuotactile temporal numerosity judgements.•The CCE was unaffected by stimulus context or hand identity.•Performance improved when images of hands were presented with faces/names.•Stimulus context influences temporal visuotactile interactions but not the CCE. The crossmodal congruency effect (CCE) is augmented when viewing an image of a hand compared to an object. It is unclear if this contextual effect extends to a non-spatial CCE. Here, participants discriminated the number of tactile vibrations delivered to the hand whilst ignoring visual distractors on images of their own or another’s hand or an object. The CCE was not modulated by stimulus context. Viewing one’s hand from a third person perspective increased errors relative to viewing an object (Experiment 1). Errors were reduced when viewing hands, from first or third person perspectives, with additional identity markers (Experiments 2 and 3). Our results suggest no effect of context on the non-spatial CCE and that differences in task performance between hand and object images depend on their visual properties. These findings are discussed in light of the relationship between body representation and perception of body-centred stimuli in the temporal domain.
ISSN:1053-8100
1090-2376
DOI:10.1016/j.concog.2020.102900