کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4344355 1296647 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bilateral temporal cortex transcranial direct current stimulation worsens male performance in a multisensory integration task
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
Bilateral temporal cortex transcranial direct current stimulation worsens male performance in a multisensory integration task
چکیده انگلیسی

Somatosensory integration is a critical cognitive function for human social interaction. Though somatosensory integration has been highly explored in cognitive studies; only a few studies have explored focal modulation of cortical excitability using a speech perception paradigm. In the current study, we aimed to investigate the effects of tDCS applied over the temporal cortex of healthy subjects during a go-no-go task in which stimuli were shapes and non-words. Twenty-eight subjects were randomized to receive cathodal, anodal or sham tDCS bilaterally over the superior temporal cortex (the reference electrode was on deltoid) in a counterbalanced order. The effects on judgment of congruency between shapes and non-words in healthy volunteers were measured by a go-no-go task. Our findings show a significant modification of performance according to the polarity of stimulation, task and subject gender. We found that men performed worse on the no-go condition for congruent stimuli during cathodal tDCS. For reaction time, on the other hand, there was a similar effect for anodal and cathodal stimulation. There were significantly faster responses on incongruent trials during both anodal and cathodal tDCS. Along with previous literature showing gender differences in tasks associated with speech perception, the findings of this study provide additional evidence suggesting that men may have a more focal and restricted neural processing in this multisensory integration task.


► tDCS induces a polarity, gender and task specific effect in a multisensory integration task.
► Bilateral cathodal temporal cortex tDCS worsens task accuracy in males only.
► Bilateral anodal or cathodal temporal cortex tDCS results in decreased reaction time for both genders.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 527, Issue 2, 11 October 2012, Pages 105–109
نویسندگان
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