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Updated: Oct 18, 2025

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Conversational Task Increases Heart Rate Variability of Individuals Susceptible to Perceived Social Isolation.

Ying Xing Feng1,2, Nur Syahirah Roslan1,2, Lila Iznita Izhar2,3

  • 1Centre for Intelligent Signal and Imaging Research (CISIR), Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia.

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Summary

Introverts prone to loneliness show physiological differences, but conversational tasks with strangers improve heart rate variability (HRV). This suggests social interaction offers physiological benefits for loneliness.

Keywords:
conversationextraversion personalityheart rate variability (HRV)mental healthperceived social isolation

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Area of Science:

  • Psychology
  • Neuroscience
  • Physiology

Background:

  • Introversion is linked to perceived social isolation (loneliness), which has negative health implications.
  • Lonely individuals often use social media, but this can worsen relationships and lead to depression.
  • Conversational tasks aim to improve social skills but their physiological benefits are unclear.

Purpose of the Study:

  • To investigate physiological changes in introverts during a conversational task.
  • To compare physiological responses of introverts susceptible to loneliness with extraverts.

Main Methods:

  • Recorded physiological signals (EDA, HR, HRV) from 28 healthy individuals during a conversational task.
  • Participants were grouped by trait extraversion, with introverts considered more susceptible to loneliness.

Main Results:

  • Introverts showed higher neuroticism and distinct EDA, HR, and HRV patterns compared to extraverts.
  • Resting heart rate variability (HRV) in lonely-susceptible individuals was below healthy levels.
  • Conversational tasks significantly increased HRV in susceptible individuals to control levels.

Conclusions:

  • Conversational therapy may offer physiological benefits for introverts, potentially reducing social isolation and loneliness.
  • Heart rate variability (HRV) can be a physiological marker for loneliness and a target for interventions.
  • Maintaining social interaction is crucial for physiological well-being, even with changing interaction methods.