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Repeated noninvasive stimulation of the ventromedial prefrontal cortex reveals cumulative amplification of pleasant compared to unpleasant scene processing: A single subject pilot study

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  • Constantin Winker
  • Maimu A Rehbein
  • Dean Sabatinelli
  • Markus Junghofer

Abstract

The ventromedial prefrontal cortex (vmPFC) is a major hub of the reward system and has been shown to activate specifically in response to pleasant / rewarding stimuli. Previous studies demonstrate enhanced pleasant cue reactivity after single applications of transcranial direct current stimulation (tDCS) to the vmPFC. Here we present a pilot case study in which we assess the cumulative impact of multiple consecutive vmPFC-tDCS sessions on the processing of visual emotional stimuli in an event-related MEG recording design. The results point to stable modulation of increased positivity biases (pleasant > unpleasant stimulus signal strength) after excitatory vmPFC stimulation and a reversed pattern (pleasant

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  • Constantin Winker & Maimu A Rehbein & Dean Sabatinelli & Markus Junghofer, 2020. "Repeated noninvasive stimulation of the ventromedial prefrontal cortex reveals cumulative amplification of pleasant compared to unpleasant scene processing: A single subject pilot study," PLOS ONE, Public Library of Science, vol. 15(1), pages 1-11, January.
    • Handle: RePEc:plo:pone00:0222057
    DOI: 10.1371/journal.pone.0222057
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