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Stimulating the Performance Monitoring Network: Effects of Transcranial Direct Current Stimulation on Error-Processing

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dc.contributor.advisor McDonald, Craig G
dc.contributor.author Paquette, Natalie A
dc.creator Paquette, Natalie A
dc.date 2017-12-06
dc.date.accessioned 2018-05-17T17:15:16Z
dc.date.available 2018-05-17T17:15:16Z
dc.identifier doi:10.13021/G8ST1D
dc.identifier.uri https://hdl.handle.net/1920/10950
dc.description.abstract The human performance monitoring network (PMN) is a collection of neural components that modify behavior to generate successful task performance. However, activation of the involved cortical areas can hinder successful task performance when limited time is available to modify behavior. Presently, little is known about how the PMN functions under different time constraints. To investigate the link between the neural correlates of the PMN and commonly observed post-error behaviors, this study manipulated PMN activation via transcranial Direct Current Stimulation (tDCS) at the Medial Frontal Cortex (MFC). This study implemented a difficult visual discrimination task in which response- stimulus intervals (RSIs) were varied, coupled with tDCS, to investigate the effects on performance monitoring of different RSI lengths. A within subjects design was used, in which participants took part in both the experimental (anodal) and the control (sham) stimulation conditions. Critically, anodal stimulation significantly improved overall accuracy. Analyses of post-error behaviors also showed that anodal stimulation produced a significant increase in post-error accuracy (PEA) and post-error slowing (PES). These findings are consistent with the notion that post-error behavioral adjustments facilitate better overall task performance when sufficient processing time is available. The findings also provide causal evidence for the role of the MFC in PMN activity and resulting post-error behavioral adjustments.
dc.language.iso en en_US
dc.subject performance monitoring en_US
dc.subject tDCS en_US
dc.subject error-processing en_US
dc.subject Response-Stimulus Interval en_US
dc.title Stimulating the Performance Monitoring Network: Effects of Transcranial Direct Current Stimulation on Error-Processing en_US
dc.type Thesis en_US
thesis.degree.name Master of Arts in Psychology en_US
thesis.degree.level Master's en_US
thesis.degree.discipline Psychology en_US
thesis.degree.grantor George Mason University en_US


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