Effects of light therapy on sleep and anxiety in Parkinson's disease: A pilot trial.
Shen Y; Li HX; Dai J; Zhou QJ; Tao MX; Xie WY; Lou H; Liu JY · 2026 · Journal of affective disorders
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Background Light therapy (LT) may improve sleep and affective disorders in Parkinson's disease (PD), but effects of different intensities and underlying mechanisms remain unclear. Methods Thirty-three patients with PD were randomized to…
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Metadata source: Europe PMC · DOI 10.1016/j.jad.2026.122121