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Interplay of morphological configuration and language switching in numerical processing and word processing.

Carla E Contreras-Saavedra1, Klaus Willmes2, Iring Koch1

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Summary

This study investigated how switching between languages and word structures affects cognitive processing. Findings show language and morphological configuration are integrated into a single schema, impacting switch costs.

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Area of Science:

  • Psycholinguistics
  • Cognitive Science
  • Linguistics

Background:

  • Morphological configuration varies within and between languages.
  • This variability impacts word formation in tasks like number naming and compound word construction.
  • Understanding this interplay is crucial for psycholinguistic models of language processing.

Purpose of the Study:

  • To investigate the interaction between morphological configuration switching and language switching.
  • To determine how these switches influence cognitive performance.
  • To explore the integration of morphological and linguistic information in the brain.

Main Methods:

  • Participants performed language comprehension tasks on two-digit numbers and language production tasks on compound words.
  • Experiments involved switching between languages (German, English, Spanish) and morphological configurations.
  • Language-switch cost was measured by comparing performance on switch vs. repetition trials.

Main Results:

  • An under-additive switch cost pattern was observed across all experiments.
  • Larger language-switch costs occurred during morphological configuration repetition compared to switching.
  • This indicates morphological configuration and language are processed within a unified schema.

Conclusions:

  • Morphological configuration and language are integrated into a single language-related schema.
  • This integration is independent of the specific language task (comprehension vs. production).
  • The findings suggest a unified cognitive mechanism for processing language structure and identity.