Ramos-Estebanez, C., Merabet, L.B., Machii, K., Fregni, F., Thut, G. , Wagner, T.A., Romei, V., Amedi, A. and Pascual-Leone, A. (2007) Visual phosphene perception modulated by subthreshold crossmodal sensory stimulation. Journal of Neuroscience, 27(15), pp. 4178-4181. (doi: 10.1523/JNEUROSCI.5468-06.2007)
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Abstract
Crossmodal sensory interactions serve to integrate behaviorally relevant sensory stimuli. In this study, we investigated the effect of modulating crossmodal interactions between visual and somatosensory stimuli that in isolation do not reach perceptual awareness. When a subthreshold somatosensory stimulus was delivered within close spatiotemporal congruency to the expected site of perception of a phosphene, a subthreshold transcranial magnetic stimulation pulse delivered to the occipital cortex evoked a visual percept. The results suggest that under subthreshold conditions of visual and somatosensory stimulation, crossmodal interactions presented in a spatially and temporally specific manner can sum up to become behaviorally significant. These interactions may reflect an underlying anatomical connectivity and become further enhanced by attention modulation mechanisms.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Romei, Dr Vincenzo and Thut, Professor Gregor |
| Authors: | Ramos-Estebanez, C., Merabet, L.B., Machii, K., Fregni, F., Thut, G., Wagner, T.A., Romei, V., Amedi, A., and Pascual-Leone, A. |
| College/School: | College of Science and Engineering > School of Psychology College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience |
| Journal Name: | Journal of Neuroscience |
| Journal Abbr.: | J. neurosci. |
| Publisher: | The Society for Neuroscience |
| ISSN: | 0270-6474 |
| ISSN (Online): | 1529-2401 |
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