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Can sound stimulation lessen long-term concussion symptoms?

2023-11-22
(Press-News.org) New research indicates that acoustic stimulation of the brain may ease persistent symptoms in individuals who experienced mild traumatic brain injury in the past.

The study, which is published in Annals of Clinical and Translational Neurology, included 106 military service members, veterans, or their spouses with persistent symptoms after mild traumatic brain injury 3 months to 10 years ago. Participants were randomized 1:1 to receive 10 sessions of engineered tones linked to brainwaves (intervention), or random engineered tones not linked to brainwaves (sham control). All participants rested comfortably in a zero-gravity chair in the dark with eyes closed and listened to the computer-generated tones via earbud-style headphones. The primary outcome was change in symptom scores, with secondary outcomes of heart rate variability and self-reported measures of sleep, mood, and anxiety.

Among all study participants, symptom scores clinically and statistically improved compared with baseline, with benefits largely sustained at 3 months and 6 months; however, there were no significant differences between the intervention and control groups. Similar patterns were observed for secondary outcomes.

The results indicate that although acoustic stimulation is associated with marked improvement in postconcussive symptoms, listening to acoustic stimulation based on brain electrical activity, as it was delivered in this study, may not improve symptoms, brain function, or heart rate variability more than randomly generated, computer engineered acoustic stimulation.

"Postconcussive symptoms have proven very difficult to treat, and the degree of improvement seen in this study is virtually unheard of, though further research is needed to identify what elements are key to its success," said corresponding author Michael J. Roy, MD, MPH, of Uniformed Services University and the Walter Reed National Military Medical Center, in Bethesda.

URL upon publication: https://onlinelibrary.wiley.com/doi/10.1002/acn3.51937

 

 

Additional Information
NOTE: The information contained in this release is protected by copyright. Please include journal attribution in all coverage. For more information or to obtain a PDF of any study, please contact: Sara Henning-Stout, newsroom@wiley.com.

About the Journal
Annals of Clinical and Translational Neurology is a peer-reviewed journal for rapid dissemination of high-quality research related to all areas of neurology. The journal publishes original research and scholarly reviews focused on the mechanisms and treatments of diseases of the nervous system; high-impact topics in neurologic education; and other topics of interest to the clinical neuroscience community.

About Wiley
Wiley is a knowledge company and a global leader in research, publishing, and knowledge solutions. Dedicated to the creation and application of knowledge, Wiley serves the world’s researchers, learners, innovators, and leaders, helping them achieve their goals and solve the world's most important challenges. For more than two centuries, Wiley has been delivering on its timeless mission to unlock human potential. Visit us at Wiley.com. Follow us on Facebook, Twitter, LinkedIn and Instagram.

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[Press-News.org] Can sound stimulation lessen long-term concussion symptoms?