A brainstem signaling system may link sleep disruption and psychiatric symptoms
A review explores the locus coeruleus, a source of noradrenaline, as a possible connection between altered arousal, sleep and psychiatric symptoms. It describes candidate mechanisms and treatment targets.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
This review proposes that altered signaling in the locus coeruleus may help connect psychiatric symptoms with disrupted sleep and stress responses. It combines evidence from several research settings and discusses potential treatment targets. The abstract does not establish a single shared cause of these disorders or show that targeting this brain region improves patient outcomes.
Although the title calls this systematic, the abstract describes a narrative review and does not report a search method, study count or pooled estimates.
Why this system matters
The locus coeruleus supplies noradrenaline and participates in arousal, attention, stress responses and sleep regulation. The review discusses how disturbed activity in this system may accompany changes in emotional regulation, sensory processing and cognitive control.
Different patterns of disruption
The reviewed research describes both reduced activity and excessive responsiveness, rather than a uniform abnormality across disorders. The authors also discuss drugs and other techniques targeting these pathways, but the abstract provides no comparative treatment results.
The original publication
Noradrenergic dysregulation in the locus coeruleus: Implications for neuropsychiatric disease pathophysiology- A systematic review.
Mir FA, Jha SK, Nehs CJ
Neurosci Biobehav Rev · 2025
- PubMed ID
- 41167443
- Record checked
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