Exploring the Relationship Between Sleepiness, Psychosis and Mood: A Quantitative Approach

Marinescu, Ioana-Mihaela (2025) Exploring the Relationship Between Sleepiness, Psychosis and Mood: A Quantitative Approach. Doctoral thesis, University of East Anglia.

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Abstract

This thesis aimed to explore the relationship between hypersomnia, psychiatric symptoms, and wellbeing in the context of mental health disorders (mood and psychosis).

A systematic review was conducted to synthesise existing research into hypersomnia in mood. This review examined 42 studies, all of them using quantitative design. The review confirmed that there are strong correlations between hypersomnia and low mood, suggesting that hypersomnia has a negative impact on mood and increases the risk of future mood deterioration. The findings emphasised the importance of employing objective measures to assess hypersomnia and the integration of qualitative and mixed-methods research approaches to advance understanding in this area, in particular around the mechanisms underlying these associations.

An empirical study was then conducted in patients with psychosis to understand rates of hypersomnia in this group and differences between the patients with and without hypersomnia with respect to sleep, antipsychotic medication, clinical symptoms, and quality of life. Fifty-seven participants completed an online survey reporting on their sleep, clinical symptoms, and quality of life. The study found significant differences in gender and age, with hypersomnia patients exhibiting a higher likelihood of being younger and male, but no significant differences regarding diagnosis, medication type, or antipsychotic medication dose, clinical symptoms, quality of life, and physical activity between the study groups. One reason for this lack of significance may be the limited differences observed between groups, as even individuals who did not meet the criteria for hypersomnia reported extended sleep durations. The study highlighted the need for longitudinal research and a focus on the direction of effect among hypersomnia, clinical symptoms, and quality of life with the view of designing and offering tailored interventions targeting excessive sleepiness in people with psychosis.

Item Type:	Thesis (Doctoral)
Faculty \ School:	Faculty of Medicine and Health Sciences > Norwich Medical School
Depositing User:	Chris White
Date Deposited:	13 Oct 2025 10:13
Last Modified:	13 Oct 2025 10:13
URI:	https://ueaeprints.uea.ac.uk/id/eprint/100700
DOI:

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