Features Versus Feelings: Dissociable Representations of the Acoustic Features and Valence of Aversive Sounds
Overview
Affiliations
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.
Psychoacoustic and Archeoacoustic nature of ancient Aztec skull whistles.
Fruhholz S, Rodriguez P, Bonard M, Steiner F, Bobin M Commun Psychol. 2024; 2(1):108.
PMID: 39528620 PMC: 11555264. DOI: 10.1038/s44271-024-00157-7.
Auditory guidance of eye movements toward threat-related images in the absence of visual awareness.
Hu J, Badde S, Vetter P Front Hum Neurosci. 2024; 18:1441915.
PMID: 39175660 PMC: 11338778. DOI: 10.3389/fnhum.2024.1441915.
Neurovascular coupling dysfunction associated with cognitive impairment in presbycusis.
Xing C, Feng J, Yao J, Xu X, Wu Y, Yin X Brain Commun. 2024; 6(4):fcae215.
PMID: 38961873 PMC: 11220505. DOI: 10.1093/braincomms/fcae215.
Live music stimulates the affective brain and emotionally entrains listeners in real time.
Trost W, Trevor C, Fernandez N, Steiner F, Fruhholz S Proc Natl Acad Sci U S A. 2024; 121(10):e2316306121.
PMID: 38408255 PMC: 10927510. DOI: 10.1073/pnas.2316306121.
Listening to your partner: serotonin increases male responsiveness to female vocal signals in mice.
Hood K, Hurley L Front Hum Neurosci. 2024; 17:1304653.
PMID: 38328678 PMC: 10847236. DOI: 10.3389/fnhum.2023.1304653.