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  Supplementary motor area activations predict individual differences in temporal-change sensitivity and its illusory distortions

Herrmann, B., Henry, M., Scharinger, M., & Obleser, J. (2014). Supplementary motor area activations predict individual differences in temporal-change sensitivity and its illusory distortions. NeuroImage, 101, 370-379. doi:10.1016/j.neuroimage.2014.07.026.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0019-FD20-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-82B5-D
Genre: Journal Article

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 Creators:
Herrmann, Björn1, Author              
Henry, Molly1, Author              
Scharinger, Mathias1, Author              
Obleser, Jonas1, Author              
Affiliations:
1Max Planck Research Group Auditory Cognition, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_751545              

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Free keywords: Temporal rate change; Time–pitch interdependence; Functional magnetic resonance imaging; Feature-selective attention; Perceptual illusion
 Abstract: Perception of time and temporal change is critical for human cognition. Yet, perception of temporal change is susceptible to contextual influences such as changes of a sound's pitch. Using functional magnetic resonance imaging (fMRI), the current study aimed to investigate perception of temporal rate change and pitch-induced illusory distortions. In a 6 × 6 design, human participants (N = 19) listened to frequency-modulated sounds (~ 4 Hz) that varied over time in both modulation rate and pitch. Participants judged the direction of rate change (‘speeding up’ vs. ‘slowing down’), while ignoring changes in pitch. Behaviorally, rate judgments were strongly biased by pitch changes: Participants perceived rate to slow down when pitch decreased and to speed up when pitch increased (‘rate-change illusion’). The fMRI data revealed activation increases with increasing task difficulty in pre-SMA, left putamen, and right IFG/insula. Importantly, activation in pre-SMA was linked to the perceptual sensitivity to discriminate rate changes and, together with the left putamen, to relative reductions in susceptibility to pitch-induced illusory distortions. Right IFG/insula activations, however, only scaled with task difficulty. These data offer a distinction between regions whose activations scale with perceptual sensitivity to features of time (pre-SMA) and those that more generally support behaving in difficult listening conditions (IFG/insula). Hence, the data underscore that individual differences in time perception can be related to different patterns of neurofunctional activation.

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Language(s): eng - English
 Dates: 2014-07-162014-07-162014-11-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.neuroimage.2014.07.026
PMID: 25087482
Other: Epub 2014
 Degree: -

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Title: NeuroImage
Source Genre: Journal
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Publ. Info: Orlando, FL : Academic Press
Pages: - Volume / Issue: 101 Sequence Number: - Start / End Page: 370 - 379 Identifier: ISSN: 1053-8119
CoNE: /journals/resource/954922650166