New research results indicate that inner dialogue and speaking out loud create different reactions in the brain, such that when speaking out loud, the pupil dilates, while mental counting in silence can reduce the size of the pupil.
ISNA is a semi-official Iranian news agency (Iranian Students News Agency). This is a translation of that outlet's own report; it is the outlet's account, not Artesh's finding.
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The Inner Voice Has a Remarkable Impact on Brain Activity
6d ago
October 25, 2026
1 min read
📰 ISNA
📋 Key Takeaway
A new study reveals that inner dialogue and vocal expression affect brain activity differently, with loud speaking causing pupil dilation and silent mental counting leading to pupil constriction. This research highlights the complexities of cognitive processes and their physiological effects.
🔍 Quick Context Guide
💡 Bottom Line:
Understanding the brain's response to inner dialogue and vocal expression can enhance cognitive science research.
📰 What Happened
A new study has found that inner dialogue and vocal expression trigger different reactions in the brain, specifically affecting pupil size. Speaking out loud causes pupil dilation, while silent mental counting results in pupil constriction.
- Inner dialogue and vocal expression impact brain activity differently.
- Pupil size changes are linked to cognitive processes.
💡 Why It Matters
🇮🇷 For Iran: This research may have implications for understanding cognitive processes in educational and psychological contexts within Iran.
🌍 Regional: Insights from this study could influence regional educational practices.
🌐 International: The findings may contribute to global discussions on cognitive science and psychology.
📚 Background
Cognitive neuroscience explores how mental processes are linked to brain activity, and studies like this provide insights into human behavior.
Cognitive neuroscience
Psychology of speech
📡 Source:
NEUTRAL
📊 Confidence:
70%
This article presents scientific findings and should be interpreted as part of ongoing research in cognitive science.
🏷️ Entities Mentioned
🌐
Translated from the original and edited for English readers. View original source →
Translation confidence: 85%
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