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Mid-Frontal Theta Modulates Response Inhibition and Decision Making Processes in Emotional Contexts

1
Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University and Academia Sinica, Taipei 11529, Taiwan
2
Department of Electrical Engineering, National Central University, Chungli, Zhongli District, Taoyuan City 32001, Taiwan
3
Institute of Statistical Science, Academia Sinica, Taipei 11529, Taiwan
*
Author to whom correspondence should be addressed.
Brain Sci. 2019, 9(10), 271; https://doi.org/10.3390/brainsci9100271
Received: 10 September 2019 / Revised: 5 October 2019 / Accepted: 8 October 2019 / Published: 11 October 2019
Inhibitory control is an integral part of executive functions. In this study, we report event-related spectral perturbation (ERSP) results from 15 healthy adults performing an emotional stop-signal task with the use of happy, disgusted, and neutral emotional faces. Our ERSP results at the group level suggest that changes in low frequency oscillatory power for emotional and neutral conditions start at as early as 200 ms after stimulus onset and 300 ms before button press for successful go trials. To quantify the dynamics of trial-by-trial theta power, we applied the hierarchical drift diffusion model to single-trial ERSP at the mid-frontal electrode site for the go condition. Hierarchical drift diffusion modeling (HDDM) assigned higher frontal low-frequency oscillatory power for evidence accumulation in emotional contexts as compared to a neutral setting. Our results provide new evidence for dynamic modulation of sensory processing of go stimuli in inhibition and extend our knowledge for processing of response inhibition in emotional contexts. View Full-Text
Keywords: event-related spectral perturbation (ERSP); theta; beta; response inhibition; stop signal; hierarchical drift diffusion modeling (HDDM) event-related spectral perturbation (ERSP); theta; beta; response inhibition; stop signal; hierarchical drift diffusion modeling (HDDM)
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Nayak, S.; Kuo, C.; Tsai, A. .-H. Mid-Frontal Theta Modulates Response Inhibition and Decision Making Processes in Emotional Contexts. Brain Sci. 2019, 9, 271.

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