Optical Imaging of a Tactile Illusion in Area 3b of the Primary Somatosensory Cortex
Top Cited Papers
- 31 October 2003
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 302 (5646) , 881-885
- https://doi.org/10.1126/science.1087846
Abstract
In the tactile funneling illusion, the simultaneous presentation of brief stimuli at multiple points on the skin produces a single focal sensation at the center of the stimulus pattern even when no physical stimulus occurs at that site. Consistent with the funneling percept, we show with optical imaging in area 3b of the primary somatosensory cortex (SI) that simultaneous stimulation of two fingertips produces a single focal cortical activation between the single fingertip activation regions. Thus, in contrast to traditional views of the body map, topographic representation in the SI reflects the perceived rather than the physical location of peripheral stimulation.Keywords
This publication has 18 references indexed in Scilit:
- Fine-Scale Organization of SI (Area 3b) in the Squirrel Monkey Revealed With Intrinsic Optical ImagingJournal of Neurophysiology, 2001
- Real and Illusory Contour Processing in Area V1 of the Primate: a Cortical Balancing ActCerebral Cortex, 2001
- Spatial Distribution of Contextual Interactions in Primary Visual Cortex and in Visual PerceptionJournal of Neurophysiology, 2000
- Sensory funneling of liminal multiple- point air-puff stimulation produces dramatic reduction in reaction time but relatively invariant P300 somatosensory evoked potentialNeuroReport, 1999
- Horizontal Propagation of Visual Activity in the Synaptic Integration Field of Area 17 NeuronsScience, 1999
- Consistent Features of the Representation of the Hand in Area 3b of Macaque MonkeysSomatosensory Research, 1987
- Stimulus Specific Responses from Beyond the Classical Receptive Field: Neurophysiological Mechanisms for Local-Global Comparisons in Visual NeuronsAnnual Review of Neuroscience, 1985
- Representations of the body surface in cortical areas 3b and 1 of squirrel monkeys: Comparisons with other primatesJournal of Comparative Neurology, 1982
- Representations of the body surface in postcentral parietal cortex of Macaca fascicularisJournal of Comparative Neurology, 1980