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Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
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Related Experiment Video

Updated: Sep 17, 2025

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
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Exploring the Relationship Between Mental Boundary Strength and Phonetic Accommodation.

Iona Gessinger1, Nicolas Becker2, Benjamin R Cowan3

  • 1ADAPT Centre, School of Computer Science, University College Dublin, Ireland.

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|June 28, 2025
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Summary

This study links mental boundaries to phonetic accommodation in German speakers. Thicker mental boundaries correlated with greater adaptation to specific speech sounds, suggesting personality influences language.

Keywords:
Big FiveBoundary QuestionnaireGerman adaptationMental boundariesphonetic accommodation

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Area of Science:

  • Psycholinguistics
  • Sociolinguistics
  • Personality Psychology

Background:

  • Explores the connection between the psychological construct of mental boundaries and the linguistic phenomenon of phonetic accommodation.
  • Proposes that individuals with weaker mental boundaries may exhibit a higher tendency for phonetic adaptation.
  • Addresses the need for research tools to study this relationship in German speakers.

Purpose of the Study:

  • To translate and validate the Boundary Questionnaire Short-form (BQ-Sh) for German speakers (BQ-Sh-G).
  • To investigate the relationship between mental boundary strength and phonetic accommodation in German.
  • To examine the interplay between mental boundaries, Big Five personality traits, and phonetic convergence.

Main Methods:

  • Translation and validation of the English BQ-Sh into the German BQ-Sh-G.
  • Correlation analysis between BQ-Sh-G scores and the NEO-Five Factor Inventory (Big Five personality traits).
  • Experimental investigation of phonetic accommodation in German, focusing on the word ending <-ig> and wh-question intonation, using BQ-Sh-G scores.

Main Results:

  • The German adaptation (BQ-Sh-G) proved equivalent to the original BQ-Sh.
  • BQ-Sh-G scores showed positive correlations with Neuroticism and Openness, and a negative correlation with Conscientiousness.
  • A trend indicated that thicker mental boundaries were associated with increased convergence towards <-ig> variants.

Conclusions:

  • Mental boundary strength is a potential predictor of phonetic accommodation tendencies.
  • Different personality traits, including mental boundary strength, may influence the accommodation to various phonetic features.
  • Further research is recommended to explore the predictive power of the boundary construct across a wider range of phonetic features.