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Modulating Complex Sentence Processing in Aphasia Through Attention and Semantic Networks.

Carolyn Baker¹, Tracy Love^1,2

¹SDSU/UCSD Joint Doctoral Program in Language & Communicative Disorders, San Diego, CA.

Journal of Speech, Language, and Hearing Research : JSLHR

|November 7, 2023

Summary

This summary is machine-generated.

Engaging attention and semantic activation can improve lexical processing and sentence comprehension in individuals with aphasia (IWAs). These strategies help resolve interference, aiding language recovery.

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Area of Science:

Psycholinguistics
Neuroscience
Speech and Language Pathology

Background:

Lexical processing deficits, including delayed semantic activation, are linked to syntactic disruptions and comprehension deficits in individuals with aphasia (IWAs).
These lexical impairments can hinder sentence processing and increase interference during syntactic retrieval.

Purpose of the Study:

To investigate if attention and semantic pre-activation manipulations can enhance lexical activation and syntactic dependency linking in IWAs and age-matched controls (AMCs).
To determine if these manipulations improve the resolution of similarity-based interference during syntactic retrieval.

Main Methods:

Utilized eye-tracking-while-listening within a visual world paradigm.
Examined the effects of semantic and attentional manipulations on lexical processing and syntactic retrieval of direct-object nouns in object-relative sentences.

Main Results:

AMCs showed facilitated dependency linking and interference resolution without changes in initial lexical access.
IWAs demonstrated increased and sustained lexical activation with attentional cues, and greater facilitation in dependency linking with semantic cues.

Conclusions:

Attention and semantic activation can be manipulated to strengthen lexical representations, facilitating retrieval and mitigating interference.
These findings suggest potential therapeutic strategies to reduce lexical processing deficits in IWAs and improve encoding.