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Related Experiment Videos

Tracking Colisteners' Knowledge States During Language Comprehension.

Olessia Jouravlev1,2, Rachael Schwartz3, Dima Ayyash1

  • 11 Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology.

Psychological Science
|November 17, 2018
PubMed
Summary
This summary is machine-generated.

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Even when alone, people consider others' understanding during communication. This social-N400 effect shows we model others' minds, even if they are just present.

Area of Science:

  • Cognitive psychology
  • Social neuroscience
  • Linguistics

Background:

  • Understanding language comprehension in social contexts is crucial.
  • Previous research has not fully explored how the mere presence of others affects language processing.
  • The N400 event-related potential is a known marker of semantic processing difficulty.

Purpose of the Study:

  • To investigate whether individuals' language processing is influenced by the comprehension state of others present.
  • To determine if social presence alone, without direct interaction, modulates semantic processing.
  • To explore the role of cognitive load in social modulation of language comprehension.

Main Methods:

  • Two event-related potential (ERP) experiments were conducted.
Keywords:
ERPsN400communicationjoint actionsopen dataopen materialsperspective takingsocial N400social cognition

Related Experiment Videos

  • Participants read sentences that were either plausible or implausible given specific contexts.
  • ERP data (specifically the N400 component) were recorded under different social conditions: alone, with a confederate unaware of the context, and with explicit perspective-taking instructions.

    • Main Results:

    • No significant N400 effect (semantic processing difficulty) was observed when participants were alone.
    • A significant 'social-N400 effect' emerged when a confederate was present and the sentences were implausible from their perspective.
    • This social-N400 effect occurred even without explicit instructions to consider the confederate's viewpoint, but not under high cognitive load.

    Conclusions:

    • Language comprehension is sensitive to the perceived understanding of others, even non-interactively present individuals.
    • The brain automatically engages in 'mind-modeling' of others during linguistic exchanges, unless cognitive resources are depleted.
    • These findings highlight the inherently social nature of human cognition and communication.