Incremental comprehension of spoken quantifier sentences: Evidence from brain potentials

Area of Science:

• Psycholinguistics
• Cognitive Neuroscience
• Computational Linguistics

Background:

• Previous research indicated that quantifier meanings are not immediately processed during sentence comprehension.
• This conclusion was based on studies using serial visual presentation (SVP), which may not reflect natural language processing.
• Discrepancies between online (N400 effects) and offline (plausibility judgments) measures fueled this debate.

Purpose of the Study:

• To investigate whether quantifier meanings are incrementally incorporated during spoken sentence comprehension.
• To compare online comprehension of quantifiers in spoken versus visually presented sentences.
• To determine if prosodic information influences incremental processing of quantifiers.

Main Methods:

• An event-related potential (ERP) experiment was conducted using spoken sentences containing positive and negative quantifiers.
• Participants listened to sentences such as 'Practically all/practically no postmen prefer delivering mail, when the weather is good/bad during the day'.
• N400 effects were analyzed to assess the timing of quantifier meaning integration.

Main Results:

• Sentence truth-value N400 effects were observed for both positive and negative quantifier sentences.
• These findings contrast with previous studies using serial visual presentation (SVP).
• The results suggest fully incremental comprehension of quantifiers in spoken language.

Conclusions:

• Spoken language comprehension, aided by prosodic information, supports incremental processing of quantifier meanings.
• Comprehension of quantifier sentences in spoken form appears more incremental than in serial visual presentation.
• This challenges previous assumptions about the non-incremental nature of quantifier processing.