Brain responses to auditory and visual stimulus offset: Shared representations of temporal edges

Herdener, Marcus; Lehmann, Christoph; Esposito, Fabrizio; di Salle, Francesco; Federspiel, Andrea; Bach, Dominik R; Scheffler, Klaus; Seifritz, Erich (2009). Brain responses to auditory and visual stimulus offset: Shared representations of temporal edges. Human brain mapping, 30(3), pp. 725-733. Hoboken, N.J.: Wiley-Blackwell 10.1002/hbm.20539

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Edges are crucial for the formation of coherent objects from sequential sensory inputs within a single modality. Moreover, temporally coincident boundaries of perceptual objects across different sensory modalities facilitate crossmodal integration. Here, we used functional magnetic resonance imaging in order to examine the neural basis of temporal edge detection across modalities. Onsets of sensory inputs are not only related to the detection of an edge but also to the processing of novel sensory inputs. Thus, we used transitions from input to rest (offsets) as convenient stimuli for studying the neural underpinnings of visual and acoustic edge detection per se. We found, besides modality-specific patterns, shared visual and auditory offset-related activity in the superior temporal sulcus and insula of the right hemisphere. Our data suggest that right hemispheric regions known to be involved in multisensory processing are crucial for detection of edges in the temporal domain across both visual and auditory modalities. This operation is likely to facilitate cross-modal object feature binding based on temporal coincidence. Hum Brain Mapp, 2008. (c) 2008 Wiley-Liss, Inc.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy > Management
04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy > Psychiatric Neurophysiology [discontinued]

UniBE Contributor:

Herdener, Marcus; Lehmann, Christoph; Esposito, Fabio; Federspiel, Andrea; Bach, Dominik and Seifritz, Erich

ISSN:

1065-9471

ISBN:

18266216

Publisher:

Wiley-Blackwell

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:55

Last Modified:

06 Dec 2013 13:47

Publisher DOI:

10.1002/hbm.20539

PubMed ID:

18266216

Web of Science ID:

000264015900003

URI:

https://boris.unibe.ch/id/eprint/23311 (FactScience: 41254)

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