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Objective: Unilateral nostril breathing (UNB) is a yogic pranayama technique that has been shown to improve verbal and spatial cognition in neurologically intact individuals. Early study of UNB in healthy individuals has shown benefits for attention and memory. This preliminary study explored whether UNB influenced various measures of attention, language, spatial abilities, depression, and anxiety in post-stroke individuals, both with and without aphasia.

Design: A within-subjects repeated-measures design was used to determine whether UNB improved cognitive, linguistic, and affect variables in post-stroke individuals. Within-subjects comparisons determined UNB's effects over time, and between-subjects comparison was used to determine whether changes in these variables differed between post-stroke individuals with and without aphasia.

Setting: Athens and Atlanta, Georgia.

Participants: Eleven post-stroke …