Use of co-verbal gestures during word-finding difficulty among Cantonese speakers with fluent aphasia and unimpaired controls.

The study focused exclusively on fluent aphasia, so findings may not apply to non-fluent aphasia syndromes. The broad definition of word-finding difficulty may have included word production errors, potentially masking specific relationships between gesture types and retrieval mechanisms. The narrative tasks used did not heavily involve spatial descriptions, which may have limited the opportunity for gestures that are theoretically more facilitative for lexical retrieval. The study is observational and cannot establish causality between gesture use and word retrieval.

The authors report no conflicts of interest.

Do not interpret the higher frequency of gestures in people with aphasia as evidence that gestures are effective for word finding. The study found no significant difference in retrieval success when gestures were used compared to when they were not.