Journal
NEUROPSYCHOLOGIA
Volume 45, Issue 14, Pages 3335-3339Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neuropsychologia.2007.06.014
Keywords
ventral stream; dorsal stream; visual discrimination; Transcranial magnetic stimulation
Funding
- MRC [G0000003, G0601975] Funding Source: UKRI
- Medical Research Council [G0000003, G0601975] Funding Source: Medline
Ask authors/readers for more resources
A previous transcranial magnetic stimulation (TMS) study [Ellison, A., & Cowey, A. (2006). TMS can reveal contrasting functions of the dorsal and ventral visual processing streams. Experimental Brain Research, 175, 618-625] showed that both the dorsal and ventral cortical visual processing streams are involved in the processing of a task in which judgement of relative spatial position is required. In order to determine whether both streams are active in a parallel or serial manner, a double pulse TMS (20 Hz) experiment was carried out to expose peaks of disruption, indicative of when each of the areas under investigation is most potently involved. Results show that TMS over lateral occipital cortex produces greater disruption of performance than that provoked by TMS over posterior parietal cortex, significantly so when applied at 50 and 100 ms post-visual art ay onset. Both areas showed peaks of disruption up to 350 ms after visual stimulus onset. The results are discussed with respect to why each of these areas is involved in this task and what the pattern of their involvement reveals. (C) 2007 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available