Audiovisual Simultaneity Judgements in Synaesthesia

Abstract Synaesthesia is a multimodal phenomenon in which the activation of one sensory modality leads to an involuntary additional experience in another sensory modality. To date, normal multisensory processing has hardly been investigated in synaesthetes. In the present study we examine processes...

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Published inMultisensory research Vol. 34; no. 7; pp. 681 - 692
Main Authors Borgolte, Anna, Bransi, Ahmad, Seifert, Johanna, Toto, Sermin, Szycik, Gregor R, Sinke, Christopher
Format Journal Article
LanguageEnglish
Published Leiden|Boston Brill 12.05.2021
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ISSN2213-4794
2213-4808
2213-4808
DOI10.1163/22134808-bja10050

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Summary:Abstract Synaesthesia is a multimodal phenomenon in which the activation of one sensory modality leads to an involuntary additional experience in another sensory modality. To date, normal multisensory processing has hardly been investigated in synaesthetes. In the present study we examine processes of audiovisual separation in synaesthesia by using a simultaneity judgement task. Subjects were asked to indicate whether an acoustic and a visual stimulus occurred simultaneously or not. Stimulus onset asynchronies (SOA) as well as the temporal order of the stimuli were systematically varied. Our results demonstrate that synaesthetes are better in separating auditory and visual events than control subjects, but only when vision leads.
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ISSN:2213-4794
2213-4808
2213-4808
DOI:10.1163/22134808-bja10050