NeuralCipher Research overview
The text below is the source article’s original abstract under a verified reuse license. cc by
IntroductionSleep disturbances in Parkinson's disease (PD) are extremely common and significantly impact quality of life. Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is an established therapy for motor symptoms and may also influence sleep outcomes. However, the relationship between stimulation location, structural networks, and sleep improvements remains poorly understood, particularly over longer durations.MethodsWe conducted a retrospective analysis of 53 PD patients implanted with bilateral STN-DBS. Sleep outcomes were assessed using self-report measures, with subsection scores for nighttime sleep, daytime wakefulness, and total sleep disturbance analysed. Local stimulation effects were modelled using sweet spot analyses, and innervated tracts were examined through discriminative fiber filtering. Associations with motor improvements and demographic factors were analysed.ResultsSignificant improvements were reported in both nighttime sleep and daytime wakefulness. Motor symptom improvements were significantly positively associated with cumulative sleep scores but did not fully explain sleep changes. Sweet spot analyses revealed associations between cumulative sleep score improvements and the sensorimotor STN, while fiber filtering implicated brainstem, cerebellar, and cortical motor tracts for daytime and cumulative sleep improvements. These associations remained significant after controlling for motor improvements.DiscussionOur findings suggest that STN-DBS may modulate sleep via broader structural connections and beyond motor symptom improvements. The lateralised effects and involvement of widespread tracts underscore the complexity of DBS-related sleep modulation. Future studies should incorporate longitudinal designs and objective measures to disentangle motor-independent mechanisms and optimise therapeutic strategies.
Scientific assessment
Research question
Assess the question within the original study’s scope.
Methods & sample
Check the source article for study design and sample details.
Key findings
An editorially approved findings summary is not yet published for this record.
Limitations
Generalizability, bias and clinical meaning require separate assessment.
Methods, samples and clinical conclusions are not inferred from bibliographic metadata.