Research
Sleep-like slow waves during wakefulness are associated with hallucinations and poorer cognition in Parkinson’s disease
Science · By Fosco Bernasconi, Thomas Andrillon, Juan Carlos Farah, Isabelle Arnulf, Sophie Schwartz, Jevita Potheegadoo, Saul Martínez-Horta, Javier Pagonabarraga, Jaime Kulisevsky & Olaf Blanke ·
The Brief
- Sleep-like slow waves occurring during wakefulness are associated with hallucinations in people with Parkinson's disease.
- The same slow waves are also associated with poorer cognition in people with Parkinson's disease.
- The findings were published in Science Translational Medicine, Volume 18, Issue 875, November 2026.
Why it matters
The study links a measurable brain activity pattern to hallucinations and cognitive decline in Parkinson's disease, which may inform how these symptoms are understood and studied.
Who’s affected
- clinicians and researchers studying Parkinson's disease
- people living with Parkinson's disease and their caregivers
- #parkinson's
- #sleep
- #hallucinations
- #cognition
- #neuroscience
Science Translational Medicine, Volume 18, Issue 875 , November 2026.
Timeline
Study published in Science Translational Medicine
science.org
Sleep-like slow waves during wakefulness are associated with hallucinations and poorer cognition in Parkinson’s disease