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Physiological responses to proposals during dyadic decision-making conversations.

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Area of Science:

  • Psychology
  • Neuroscience
  • Sociology

Background:

  • Joint decision-making involves complex interaction dynamics.
  • Physiological responses can offer insights into conversational processes.
  • Depression can affect social interaction and physiological regulation.

Purpose of the Study:

  • To investigate the physiological underpinnings of joint decision-making.
  • To examine how proposal sequences in conversations relate to skin conductance (SC) responses.
  • To compare SC responses between depressed and non-depressed individuals during decision-making tasks.

Main Methods:

  • Utilized a novel conversation-analytically informed paradigm.
  • Measured skin conductance (SC) responses in dyads during joint decision-making tasks.
  • Compared SC responses in different conversational roles (speaker vs. recipient) and conditions (depressed vs. non-depressed dyads).

Main Results:

  • SC response rates were higher and more synchronized during proposal sequences.
  • Proposal speakers exhibited higher SC rates than recipients.
  • Participants with depression showed elevated SC rates when making proposals compared to non-depressed individuals.
  • SC response rates were higher for proposal speakers when their proposals were accepted.

Conclusions:

  • Joint decision-making, particularly proposal sequences, elicits distinct physiological responses.
  • Individual differences, such as depression, modulate these physiological responses.
  • Understanding these physiological correlates can inform interventions for social interaction challenges and democratic practices.