Effects of Increasing Stimulated Area in Spatiotemporally Congruent Unisensory and Multisensory Conditions
| Autor: | Monica Gori, Chiara Martolini, Sabrina Signorini, Giulia Cappagli |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
media_common.quotation_subject
Stimulation Sensory system 050105 experimental psychology Article bodily stimulation lcsh:RC321-571 03 medical and health sciences 0302 clinical medicine Perception Sensory threshold 0501 psychology and cognitive sciences increasing stimulated area lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry media_common spatiotemporal coincidence unisensory and multisensory perception General Neuroscience Spatial interaction multisensory interaction 05 social sciences Multisensory integration Multisensory interaction Percept Psychology Neuroscience 030217 neurology & neurosurgery |
| Zdroj: | Brain Sciences, Vol 11, Iss 343, p 343 (2021) Brain Sciences Brain Sciences; Volume 11; Issue 3; Pages: 343 |
| ISSN: | 2076-3425 |
| Popis: | Research has shown that the ability to integrate complementary sensory inputs into a unique and coherent percept based on spatiotemporal coincidence can improve perceptual precision, namely multisensory integration. Despite the extensive research on multisensory integration, very little is known about the principal mechanisms responsible for the spatial interaction of multiple sensory stimuli. Furthermore, it is not clear whether the size of spatialized stimulation can affect unisensory and multisensory perception. The present study aims to unravel whether the stimulated area’s increase has a detrimental or beneficial effect on sensory threshold. Sixteen typical adults were asked to discriminate unimodal (visual, auditory, tactile), bimodal (audio-visual, audio-tactile, visuo-tactile) and trimodal (audio-visual-tactile) stimulation produced by one, two, three or four devices positioned on the forearm. Results related to unisensory conditions indicate that the increase of the stimulated area has a detrimental effect on auditory and tactile accuracy and visual reaction times, suggesting that the size of stimulated areas affects these perceptual stimulations. Concerning multisensory stimulation, our findings indicate that integrating auditory and tactile information improves sensory precision only when the stimulation area is augmented to four devices, suggesting that multisensory interaction is occurring for expanded spatial areas. |
| Databáze: | OpenAIRE |
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