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Related Experiment Video

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Brain Imaging Investigation of the Neural Correlates of Emotion Regulation
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Neural substrates of emotional interference: A quantitative EEG study.

T Batabyal1, S P Muthukrishnan1, R Sharma1

  • 1Stress and Cognitive Electroimaging Laboratory, Department of Physiology, All India Institute of Medical Sciences, New Delhi, India.

Neuroscience Letters
|July 17, 2018
PubMed
Summary

Emotional stimuli disrupt executive functions by disengaging fronto-parietal attention and default mode networks. This study explored neural activity during emotional interference tasks using EEG.

Keywords:
AmygdalaCortical sourcesEmotional interferenceFrontoparietal attentional networksInhibition

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Area of Science:

  • Neuroscience
  • Cognitive Psychology

Background:

  • Emotional stimuli capture attention and impair executive functions.
  • The neural basis of emotion-executive attention interaction is not fully understood.

Purpose of the Study:

  • To investigate the neural substrates involved in emotional interference.
  • To elucidate how emotional stimuli affect executive attentional networks.

Main Methods:

  • Electroencephalography (EEG) was used to record cortical source activity in 15 participants.
  • Participants performed Face Word and Word Face interference tasks.
  • Source activity was analyzed using sLORETA software, comparing task conditions to baseline.

Main Results:

  • Significant decreases in cortical activity were observed in 18 gyri during Face Word Interference and 54 gyri during Word Face Interference compared to baseline.
  • Both tasks showed disengagement of fronto-parietal attentional networks and default mode network areas.
  • Premotor cortical areas exhibited significant activity during baseline, potentially for motor inhibition.

Conclusions:

  • Emotional stimuli disrupt cognitive processes by interfering with attention and default mode networks.
  • The findings highlight the neural mechanisms underlying emotional interference with executive functions.
  • EEG and sLORETA are effective tools for studying the neural dynamics of emotional-cognitive interactions.