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When semantics aids phonology: A processing advantage for iconic word forms in aphasia.
Lotte Meteyard1, Emily Stoppard1, Dee Snudden1
1Department of Clinical Language Sciences, University of Reading, UK.
Iconic words, which have a non-arbitrary link between sound and meaning, aid word learning. This study found that iconicity also improves spoken word processing for individuals with aphasia.
Area of Science:
- Linguistics
- Neurolinguistics
- Cognitive Science
Background:
- Iconicity, the non-arbitrary link between phonology and semantics, is present in spoken and signed languages.
- Previous research indicates iconic forms enhance word learning.
- The processing benefits of iconicity in individuals with aphasia remain under-explored.
Purpose of the Study:
- To investigate if iconic word forms provide a processing advantage for individuals with aphasia.
- To assess the impact of iconicity across different spoken word processing tasks.
Main Methods:
- Compared performance on repetition, reading aloud, auditory lexical decision, and visual lexical decision tasks.
- Utilized iconic and control word stimuli.
- Included 13 individuals with aphasia post-left-hemisphere stroke.
Main Results:
- Some individuals showed an advantage for iconic words in all tasks.
- Consistent group-level advantages for iconic words emerged in reading aloud and auditory lexical decision.
- These tasks involve semantic-phonological mapping.
Conclusions:
- Iconicity facilitates spoken word processing in individuals with aphasia.
- The benefit stems from a strengthened connection between semantic information and phonological forms.
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