Waving goodbye to contrast: self-generated hand movements attenuate visual sensitivity
| Autor: | Jaan Aru, Axel Cleeremans, Laurène Vuillaume, Madis Vasser |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Visual perception
media_common.quotation_subject Interference theory Metacognition Experimental and Cognitive Psychology Sensory system Stimulus (physiology) perception 050105 experimental psychology Hand movements sensory attenuation 03 medical and health sciences 0302 clinical medicine active inference Perception 0501 psychology and cognitive sciences media_common Sensory attenuation 05 social sciences Généralités Visual sensitivity Psychiatry and Mental health Clinical Psychology Neurology Metacognitive Monitoring virtual reality Neurology (clinical) Psychology sensory sensitivity metacognition 030217 neurology & neurosurgery Cognitive psychology Research Article |
| Zdroj: | Neuroscience of Consciousness Neuroscience of consciousness, 2019 (1 |
| ISSN: | 2057-2107 |
| Popis: | It is well known that the human brain continuously predicts the sensory consequences of its own body movements, which typically results in sensory attenuation. Yet, the extent and exact mechanisms underlying sensory attenuation are still debated. To explore this issue, we asked participants to decide which of two visual stimuli was of higher contrast in a virtual reality situation where one of the stimuli could appear behind the participants' invisible moving hand or not. Over two experiments, we measured the effects of such virtual occlusion on first-order sensitivity and on metacognitive monitoring. Our findings show that self-generated hand movements reduced the apparent contrast of the stimulus. This result can be explained by the active inference theory. Moreover, sensory attenuation seemed to affect only first-order sensitivity and not (second-order) metacognitive judgments of confidence. SCOPUS: ar.j info:eu-repo/semantics/published |
| Databáze: | OpenAIRE |
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