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Articles, Behavioral/Systems/Cognitive

Features versus Feelings: Dissociable Representations of the Acoustic Features and Valence of Aversive Sounds

Sukhbinder Kumar, Katharina von Kriegstein, Karl Friston and Timothy D. Griffiths
Journal of Neuroscience 10 October 2012, 32 (41) 14184-14192; DOI: https://doi.org/10.1523/JNEUROSCI.1759-12.2012
Sukhbinder Kumar
1Institute of Neuroscience, Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, United Kingdom,
2Wellcome Trust Centre for Neuroimaging, London, WC1N 3BG, United Kingdom, and
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Katharina von Kriegstein
3Max Planck Institute for Human Cognitive and Brain Sciences, 04103 Leipzig, Germany
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Karl Friston
2Wellcome Trust Centre for Neuroimaging, London, WC1N 3BG, United Kingdom, and
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Timothy D. Griffiths
1Institute of Neuroscience, Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, United Kingdom,
2Wellcome Trust Centre for Neuroimaging, London, WC1N 3BG, United Kingdom, and
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Abstract

This study addresses the neuronal representation of aversive sounds that are perceived as unpleasant. Functional magnetic resonance imaging in humans demonstrated responses in the amygdala and auditory cortex to aversive sounds. We show that the amygdala encodes both the acoustic features of a stimulus and its valence (perceived unpleasantness). Dynamic causal modeling of this system revealed that evoked responses to sounds are relayed to the amygdala via auditory cortex. While acoustic features modulate effective connectivity from auditory cortex to the amygdala, the valence modulates the effective connectivity from amygdala to the auditory cortex. These results support a complex (recurrent) interaction between the auditory cortex and amygdala based on object-level analysis in the auditory cortex that portends the assignment of emotional valence in amygdala that in turn influences the representation of salient information in auditory cortex.

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The Journal of Neuroscience: 32 (41)
Journal of Neuroscience
Vol. 32, Issue 41
10 Oct 2012
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Features versus Feelings: Dissociable Representations of the Acoustic Features and Valence of Aversive Sounds
Sukhbinder Kumar, Katharina von Kriegstein, Karl Friston, Timothy D. Griffiths
Journal of Neuroscience 10 October 2012, 32 (41) 14184-14192; DOI: 10.1523/JNEUROSCI.1759-12.2012

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Features versus Feelings: Dissociable Representations of the Acoustic Features and Valence of Aversive Sounds
Sukhbinder Kumar, Katharina von Kriegstein, Karl Friston, Timothy D. Griffiths
Journal of Neuroscience 10 October 2012, 32 (41) 14184-14192; DOI: 10.1523/JNEUROSCI.1759-12.2012
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