Sensorimotor conflicts induce somatic passivity and louden quiet voices in healthy listeners
| Autor: | Oliver Alan Kannape, Giulio Rognini, Pavo Orepic, Nathan Faivre, Olaf Blanke |
|---|---|
| Přispěvatelé: | Center for Neuroprosthetics and Brain Mind Institute, School of Life Sciences, Swiss Federal Institute of Technology (EPFL), Laboratoire de Psychologie et NeuroCognition (LPNC ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), University of Geneva [Switzerland] |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Auditory perception
medicine.medical_specialty Auditory verbal hallucinations Hallucinations media_common.quotation_subject Self-attenuation Sensory system Stimulation Audiology Delusions 050105 experimental psychology Loudness Somatic passivity 03 medical and health sciences [SCCO]Cognitive science Sensorimotor processing 0302 clinical medicine Passivity experiences Perception medicine Humans 0501 psychology and cognitive sciences Biological Psychiatry ComputingMilieux_MISCELLANEOUS media_common 05 social sciences medicine.disease 030227 psychiatry Sensorimotor control Psychiatry and Mental health Psychotic Disorders Schizophrenia QUIET Voice Predictive mechanisms Psychology 030217 neurology & neurosurgery |
| Zdroj: | Schizophrenia Research Schizophrenia Research, Elsevier, 2021, 231, pp.170-177. ⟨10.1016/j.schres.2021.03.014⟩ |
| ISSN: | 0920-9964 |
| DOI: | 10.1016/j.schres.2021.03.014⟩ |
| Popis: | Sensorimotor conflicts are known to alter the perception of accompanying sensory signals and deficits in sensory attenuation have been observed in schizophrenia. In the auditory domain, self-generated tones or voices (compared to tones or voices presented passively or with sensorimotor delays) have been associated with changes in loudness perception and attenuated neural responses. It has been argued that for sensory signals to be attenuated, predicted and sensory consequences must have a consistent spatiotemporal relationship, between button presses and reafferent tactile signals, via predictive sensory signaling, a process altered in schizophrenia. Here, we investigated auditory sensory attenuation for a series of morphed voices while healthy participants applied sensorimotor stimulations that had no spatiotemporal relationship to the voice stimuli and that have been shown to induce mild psychosis-like phenomena. In two independent groups of participants, we report a loudening of silent voices and found this effect only during maximal sensorimotor conflicts (versus several control conditions). Importantly, conflicting sensorimotor stimulation also induced a mild psychosis-like state in the form of somatic passivity and participants who experienced stronger passivity lacked the sensorimotor loudening effect. We argue that this conflict-related sensorimotor loudness amplification may represent a reduction of auditory self-attenuation that is lacking in participants experiencing a concomitant mild psychosis-like state. We interpret our results within the framework of the comparator model of sensorimotor control, and discuss the implications of our findings regarding passivity experiences and hallucinations in schizophrenia. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect