A Neurobiological Framework for the Therapeutic Potential of Music and Sound Interventions for Post-Traumatic Stress Symptoms in Critical Illness Survivors.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing mechanistic reasoning and indirect evidence without systematic trial evaluation.
PubMed 35270804 · doi:10.3390/ijerph19053113
What was done
This was a narrative review guided by the Scale for the Assessment of Narrative Review Articles (SANRA), searching PubMed and CINAHL. The authors synthesized neurobiological literature regarding post-traumatic stress disorder (PTSD) pathophysiology to develop a mechanistic framework for using music and sound interventions in critical illness (post-ICU) survivors.
What was found
The abstract reports no quantitative data or effect sizes. It details qualitative neurobiological targets involved in PTSD (dysfunctional hypothalamic-pituitary-adrenal [HPA] axis, hyperactive amygdala, hippocampal atrophy, and hypoactive prefrontal cortex) and synthesizes literature suggesting music engagement can stimulate neurogenesis, normalize the stress response, improve coping and emotional regulation, and reduce depression, anxiety, dissociation, and overall PTSD symptom severity.
Why it matters
Post-ICU PTSD has limited targeted treatment options; this paper outlines a biologically plausible framework to justify and design future clinical trials of music-based interventions in critical illness survivors.
Limits
This is a narrative review without systematic search protocols, meta-analysis, or risk of bias assessments. The abstract explicitly notes a current lack of direct music intervention studies conducted specifically in ICU survivors, meaning the proposed benefits rely on mechanistic extrapolation and indirect evidence from other populations. No sample sizes or numerical findings are reported.
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