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Background: In order to comprehend fully a speaker's intention in everyday communication, information is integrated from multiple sources, including gesture and speech. There are no published studies that have explored the impact of aphasia on iconic co‐speech gesture and speech integration.

Aims: To explore the impact of aphasia on co‐speech gesture and speech integration in one participant with aphasia and 20 age‐matched control participants.

Methods & Procedures: The participant with aphasia and 20 control participants watched video vignettes of people producing 21 verb phrases in three different conditions, verbal only (V), gesture only (G), and verbal gesture combined (VG). Participants were required to select a corresponding picture from one of four alternatives: integration target, a verbal‐only match, a gesture‐only match, and an unrelated foil. The probability of choosing the integration target in the …