Does practicing naming at different times of day impact how people with aphasia relearn words?

What is it about?

This paper examines whether time of day affects word relearning in people with chronic post-stoke aphasia. The researchers compared naming practice done in the morning with practice done in the evening, closer to sleep. Thirteen adults completed both a morning and an evening training session. After each session, they were tested right away, 12 hours later, and 24 hours later. There was no difference in how well people named words right after training. However, after 24 hours, words practiced in the evening were remembered more consistently. Words practiced in the morning were more likely to decline by the next day. This suggests that sleep may help protect newly relearned words from being forgotten.

Why is it important?

Aphasia recovery varies widely, and clinicians are always looking for practical ways to improve outcomes. Much research focuses on how much therapy to give. This study asks a different question: Does when therapy happens matter? If practicing closer to bedtime improves retention, this could be a simple, low-cost way to strengthen therapy results. Even short evening home practice sessions might help maintain gains without increasing treatment intensity. Notably, the study connects aphasia recovery to well-established research on sleep and memory, opening new directions for investigation.