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Replicating the facilitatory effects of transcranial random noise stimulation on motion processing: A registered reportuse asterix (*) to get italics
Mica B. Carroll*, Grace Edwards*, Chris I. BakerPlease use the format "First name initials family name" as in "Marie S. Curie, Niels H. D. Bohr, Albert Einstein, John R. R. Tolkien, Donna T. Strickland"
2022
<p>Non-invasive brain stimulation (NIBS) techniques have the potential to demonstrate the causal impact of targeted brain regions on specific behaviors, and to regulate or facilitate behavior in clinical applications. Transcranial random noise stimulation (tRNS) is one form of transcranial electric stimulation (tES) in which an alternating current is passed between electrodes at random frequencies. High-frequency tRNS (hf-tRNS) is thought to enhance excitability and has been reported to have facilitatory effects on behavior in healthy and clinical populations. Due to the potential application of tRNS, clear demonstrations of the efficacy and replicability of stimulation are critical. Here, we propose to replicate the facilitatory effect of hf-tRNS over the human middle temporal complex (hMT+) on contralateral motion processing, initially demonstrated by Ghin et al. (2018). The improvement in performance was specific to global motion processing in the visual field contralateral to stimulation. The motivation to replicate this effect is reinforced by the well-supported hypothesis that hMT+ is critical for contralateral global motion processing. We hypothesize that we will replicate the facilitatory effect of hf-tRNS to hMT+ on contralateral global motion processing in comparison to sham stimulation. Furthermore, we extend the original findings with the addition of a within-subjects comparison between stimulation to target region hMT+ and an active control, the forehead. We expect to find a significant contralateral stimulation effect for hMT+ only.</p>
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tRNS; hMT+; facilitation; maximum likelihood procedure; motion coherence; vision
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Life Sciences
No need for them to be recommenders of PCI Registered Reports. Please do not suggest reviewers for whom there might be a conflict of interest. Reviewers are not allowed to review preprints written by close colleagues (with whom they have published in the last four years, with whom they have received joint funding in the last four years, or with whom they are currently writing a manuscript, or submitting a grant proposal), or by family members, friends, or anyone for whom bias might affect the nature of the review - see the code of conduct
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2022-06-02 21:25:02
Robert McIntosh