Psychological processes associated with insomnia in patients with multiple sclerosis

Area of Science:

• Neurology
• Sleep Medicine
• Psychology

Background:

• Insomnia disorder (ID) frequently co-occurs with multiple sclerosis (MS), yet the psychological mechanisms sustaining ID in MS remain unclear.
• Understanding these mechanisms is crucial for effective treatment of sleep disturbances in MS patients.

Purpose of the Study:

• To investigate the role of emotional, cognitive, and behavioral factors in maintaining insomnia among individuals with both MS and ID.
• To compare these psychological factors in patients with MS and ID, MS only, and individuals with insomnia but no neurological disease.

Main Methods:

• A between-subjects design compared three groups: insomnia and MS (n=26), MS only (n=31), and insomnia without neurological disease (n=26).
• Data collection involved clinical interviews and self-report measures of presleep arousal, unhelpful beliefs about sleep, and sleep-related safety behaviors.
• All MS patients underwent neurological examinations.

Main Results:

• Individuals with comorbid ID and MS exhibited significantly higher cognitive and somatic arousal, more dysfunctional beliefs about insomnia's impact, and increased sleep-related safety behaviors.
• These psychological factors were comparable to those found in individuals with insomnia but without MS.
• No correlation was identified between specific MS clinical characteristics and the presence of ID.

Conclusions:

• The psychological processes perpetuating insomnia in individuals with MS are consistent with those observed in the general population with insomnia.
• Cognitive behavioral therapy for chronic insomnia is a recommended treatment approach for ID comorbid with MS.
• Primary care providers and neurologists should consider psychological interventions for managing insomnia in MS patients.