Major

Neuroscience

Anticipated Graduation Year

2020

Access Type

Open Access

Abstract

Previous research has linked prefrontal and posterior parietal cortices (key hubs of the Frontoparietal Network; FPN) to analogical reasoning performance. Here we applied transcranial alternating current stimulation (tACS) at theta frequency (6 Hz) to nodes in dorsolateral prefrontal cortex (DLPFC) and posterior parietal cortex (PPC) to investigate the causal role of FPN connectivity in visual and verbal analogical reasoning. 94 participants participated in a between-subjects, double-blind design with three conditions. We found that ‘desynchronized’ stimulation led to enhanced visual analogical reasoning compared to sham and ‘synchronized’ stimulation conditions. These findings support a causal role of the FPN in visual analogical reasoning.

Community Partners

N/A

Faculty Mentors & Instructors

Robert Morrison, PhD, Department of Psychology

Supported By

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Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

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Executive Control Network Transcranial Alternating Stimulation (tACS) Modulates Visual Analogical Reasoning

Previous research has linked prefrontal and posterior parietal cortices (key hubs of the Frontoparietal Network; FPN) to analogical reasoning performance. Here we applied transcranial alternating current stimulation (tACS) at theta frequency (6 Hz) to nodes in dorsolateral prefrontal cortex (DLPFC) and posterior parietal cortex (PPC) to investigate the causal role of FPN connectivity in visual and verbal analogical reasoning. 94 participants participated in a between-subjects, double-blind design with three conditions. We found that ‘desynchronized’ stimulation led to enhanced visual analogical reasoning compared to sham and ‘synchronized’ stimulation conditions. These findings support a causal role of the FPN in visual analogical reasoning.