Neural mechanisms underlying valence inferences to sound: The role of the right angular gyrus
Autor: | Nadia Gonzalez, Jorge Docampo, Emmanuel Stamatakis, Sarah Hawkins, Claudio Bruno, Ian Cross, Fernando Bravo |
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Rok vydání: | 2017 |
Předmět: |
Adult
Male Auditory perception Cognitive Neuroscience media_common.quotation_subject Theory of Mind Experimental and Cognitive Psychology Functional Laterality 050105 experimental psychology Developmental psychology Angular gyrus 03 medical and health sciences Behavioral Neuroscience 0302 clinical medicine Social cognition Parietal Lobe Theory of mind Perception Image Processing Computer-Assisted Cognitive dissonance medicine Humans 0501 psychology and cognitive sciences Valence (psychology) media_common Analysis of Variance Brain Mapping 05 social sciences medicine.disease Magnetic Resonance Imaging Oxygen Sound Acoustic Stimulation Auditory Perception Autism Female Psychology Music 030217 neurology & neurosurgery Cognitive psychology |
Zdroj: | Neuropsychologia. 102:144-162 |
ISSN: | 0028-3932 |
Popis: | We frequently infer others' intentions based on non-verbal auditory cues. Although the brain underpinnings of social cognition have been extensively studied, no empirical work has yet examined the impact of musical structure manipulation on the neural processing of emotional valence during mental state inferences. We used a novel sound-based theory-of-mind paradigm in which participants categorized stimuli of different sensory dissonance level in terms of positive/negative valence. Whilst consistent with previous studies which propose facilitated encoding of consonances, our results demonstrated that distinct levels of consonance/dissonance elicited differential influences on the right angular gyrus, an area implicated in mental state attribution and attention reorienting processes. Functional and effective connectivity analyses further showed that consonances modulated a specific inhibitory interaction from associative memory to mental state attribution substrates. Following evidence suggesting that individuals with autism may process social affective cues differently, we assessed the relationship between participants' task performance and self-reported autistic traits in clinically typical adults. Higher scores on the social cognition scales of the AQ were associated with deficits in recognising positive valence in consonant sound cues. These findings are discussed with respect to Bayesian perspectives on autistic perception, which highlight a functional failure to optimize precision in relation to prior beliefs. |
Databáze: | OpenAIRE |
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