woensdag 1 juni 2011

TMS effects on subjective and objective measures of vision: Stimulation inte...

 
 

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Publication year: 2011
Source: Consciousness and Cognition, In Press, Corrected Proof, Available online 31 May 2011
Tom A., de Graaf , Sonja, Cornelsen , Christianne, Jacobs , Alexander T., Sack
Transcranial magnetic stimulation (TMS) can be used to mask visual stimuli, disrupting visual task performance or preventing visual awareness. While TMS masking studies generally fix stimulation intensity, we hypothesized that varying the intensity of TMS pulses in a masking paradigm might inform several ongoing debates concerning TMS disruption of vision as measured subjectively versus objectively, and pre-stimulus (forward) versus post-stimulus (backward) TMS masking. We here show that both pre-stimulus TMS pulses and post-stimulus TMS pulses could strongly mask visual stimuli. We found no dissociations between TMS effects on the subjective and objective measures of vision for any masking window or...
 Highlights: ► TMS was applied across a wide range of stimulation intensities to mask visual stimuli. ► Occipital TMS pulses could mask visual stimuli both when applied pre-stimulus and post-stimulus. ► TMS had similar effects on a subjective and an objective measure of vision across stimulation intensities. ► There were indications that pre-stimulus TMS masking operates differently from post-stimulus TMS masking.

 
 

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