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Dorsolateral prefrontal cortex response to negative tweets relates to executive functioning.

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Area of Science:

  • Neuroscience
  • Psychology
  • Social Media Studies

Background:

  • Emotional stimuli can negatively impact cognitive functions.
  • The effects of negative social media content on cognition are not well understood.
  • Social media is widely used and can elicit strong emotional responses.

Purpose of the Study:

  • To investigate the cognitive and neural effects of exposure to negative social media content.
  • To examine how discriminatory tweets affect executive functioning and brain activity.

Main Methods:

  • Fifty-seven adults performed a spatial reasoning task before and after reading negative or neutral tweets during functional magnetic resonance imaging (fMRI).
  • Participants were assigned to read either negative, discriminatory tweets or neutral tweets.
  • Affect and performance were measured post-reading.

Main Results:

  • Participants exposed to negative tweets reported worsened affect and showed performance interference compared to the neutral group.
  • Negative affect was associated with reduced activity in the left dorsolateral prefrontal cortex.
  • Cognitive performance decrements on an unrelated spatial task suggest broader executive function impairment.

Conclusions:

  • Engaging with negative, emotionally charged social media content can detrimentally affect executive functioning in unrelated cognitive domains.
  • Neural changes in the prefrontal cortex correlate with negative affect and predict performance decline.
  • This study highlights the significant cognitive consequences of social media exposure to negative content.