Rising sound intensity: an intrinsic warning cue activating the amygdala

Bach, Dominik R; Schächinger, Hartmut; Neuhoff, John G; Esposito, Fabrizio; Di Salle, Francesco; Lehmann, Christoph; Herdener, Marcus; Scheffler, Klaus; Seifritz, Erich (2007). Rising sound intensity: an intrinsic warning cue activating the amygdala. Cerebral cortex, 18(1), pp. 145-150. New York, N.Y.: Oxford University Press 10.1093/cercor/bhm040

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Human subjects overestimate the change of rising intensity sounds compared with falling intensity sounds. Rising sound intensity has therefore been proposed to be an intrinsic warning cue. In order to test this hypothesis, we presented rising, falling, and constant intensity sounds to healthy humans and gathered psychophysiological and behavioral responses. Brain activity was measured using event-related functional magnetic resonance imaging. We found that rising compared with falling sound intensity facilitates autonomic orienting reflex and phasic alertness to auditory targets. Rising intensity sounds produced neural activity in the amygdala, which was accompanied by activity in intraparietal sulcus, superior temporal sulcus, and temporal plane. Our results indicate that rising sound intensity is an elementary warning cue eliciting adaptive responses by recruiting attentional and physiological resources. Regions involved in cross-modal integration were activated by rising sound intensity, while the right-hemisphere phasic alertness network could not be supported by this study.

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:

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

ISSN:

1047-3211

ISBN:

17490992

Publisher:

Oxford University Press

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:51

Last Modified:

26 Oct 2019 07:43

Publisher DOI:

10.1093/cercor/bhm040

PubMed ID:

17490992

Web of Science ID:

000251505900014

BORIS DOI:

10.7892/boris.21529

URI:

https://boris.unibe.ch/id/eprint/21529 (FactScience: 7334)

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