Abstract：
:Transcranial magnetic stimulation (TMS) applied over the occipital lobe approximately 100 ms after the onset of a stimulus decreases its visibility if it appears in the location of the phosphene. Because phosphenes can also be elicited by stimulation of the parietal regions, we asked if the same procedure that is used to reduce visibility of stimuli with occipital TMS will lead to decreased stimulus visibility when TMS is applied to parietal regions. TMS was randomly applied at 0-130 ms after the onset of the stimulus in steps of 10 ms in occipital and parietal regions. Participants responded to the orientation of the line stimulus and rated its visibility. We replicate previous reports of phosphenes from both occipital and parietal TMS. As previously reported, we also observed visual suppression around the classical 100 ms window both in the objective line orientation and subjective visibility responses with occipital TMS. Parietal stimulation, on the other hand, did not consistently reduce stimulus visibility in any time window.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Tapia E,Mazzi C,Savazzi S,Beck DMdoi
10.1007/s00221-014-3888-ysubject
Has Abstractpub_date
2014-06-01 00:00:00pages
1989-97issue
6eissn
0014-4819issn
1432-1106journal_volume
232pub_type
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