Ricciardi, Emiliano and Basso, Demis and Sani, Lorenzo and Bonino, Daniela and Vecchi, Tomaso and Pietrini, Pietro and Miniussi, Carlo Functional inhibition of the human middle temporal cortex affects non-visual motion perception: a repetitive transcranial magnetic stimulation study during tactile speed discrimination. Experimental Biology and Medicine, 236 (2). pp. 138-144. ISSN 1535-3702 (2011)
Full text not available from this repository.Abstract
The visual motion-responsive middle temporal complex (hMT+) is activated during tactile and aural motion discrimination in both sighted and congenitally blind individuals, suggesting a supramodal organization of this area. Specifically, non-visual motion processing has been found to activate the more anterior portion of the hMT+. In the present study, repetitive transcranial magnetic stimulation (rTMS) was used to determine whether this more anterior portion of hMT+ truly plays a functional role in tactile motion processing. Sixteen blindfolded, young, healthy volunteers were asked to detect changes in the rotation velocity of a random Braille-like dot pattern by using the index or middle finger of their right hand. rTMS was applied for 600 ms (10 Hz, 110% motor threshold), 200 ms after the stimulus onset with a figure-of-eight coil over either the anterior portion of hMT+ or a midline parieto-occipital site (as a control). Accuracy and reaction times were significantly impaired only when TMS was applied on hMT+, but not on the control area. These results indicate that the recruitment of hMT+ is necessary for tactile motion processing, and thus corroborate the hypothesis of a ‘supramodal’ functional organization for this sensory motion processing area.
| Item Type: | Article |
|---|---|
| Identification Number: | 10.1258/ebm.2010.010230 |
| Subjects: | R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry |
| Research Area: | Computer Science and Applications |
| Depositing User: | Users 72 not found. |
| Date Deposited: | 24 Nov 2015 12:56 |
| Last Modified: | 13 Sep 2016 09:53 |
| URI: | http://eprints.imtlucca.it/id/eprint/2934 |
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