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Related Experiment Video

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Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language

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Verb Argument Structure in Narrative Speech: Mining AphasiaBank.

Svetlana Malyutina¹, Jessica D Richardson², Dirk B den Ouden²

¹Neurolinguistics Laboratory, National Research University Higher School of Economics, Moscow, Russia.

Seminars in Speech and Language

|February 17, 2016

Summary

People with aphasia use verbs less complexly, especially those with Broca's aphasia. This suggests verb argument structure knowledge deficits impact spontaneous speech in aphasia.

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Area of Science:

Linguistics
Neuroscience
Speech-Language Pathology

Background:

Verb argument structure influences language processing in controlled settings.
Unrestricted speech studies are crucial for understanding aphasia in natural contexts.

Purpose of the Study:

To investigate the impact of verb argument structure complexity on verb usage in spontaneous speech of individuals with aphasia.
To compare verb selection and diversity in speakers with aphasia and control speakers.

Main Methods:

Analysis of narrative speech samples from the AphasiaBank database.
Examination of verb argument structure characteristics, including subcategorization options and number of arguments.
Comparison between speakers with various types of aphasia and neurologically healthy control speakers.

Main Results:

Verb argument structure complexity did not impede verb selection across all aphasia types.
Individuals with aphasia, particularly Broca's aphasia, exhibited less complex and diverse verb usage.
Reduced number of arguments and less varied subcategorization options were observed in the aphasia group.

Conclusions:

Verb use deficits in aphasia are not solely due to complexity but likely stem from difficulties in applying or damaged verb argument structure knowledge.
Findings highlight the importance of considering verb argument structure in the context of spontaneous language production in aphasia.
The study provides insights into the specific challenges faced by individuals with aphasia in naturalistic communication settings.