Melissa J. Ree

• Masters (Clin Psych) PhD
• clinical Associate Professor at The University of Western Australia

Sleep discrepancy (negative discrepancy reflects worse self-reported sleep than objective measures, such as actigraphy, and positive discrepancy the opposite) has been linked to adverse health outcomes. This study is first to investigate the relationship between sleep discrepancy and brain glucose metabolism (assessed globally and regionally via po...

This was the first study to use cluster analysis to characterise sleep discrepancy (the discordance between self‐reported and objective sleep) across multiple sleep parameters, in community‐dwelling older adults. For sleep efficiency, negative discrepancy (the tendency to self‐report worse sleep than objectively‐measured) was associated with poorer...

The State-Trait Inventory for Cognitive and Somatic Anxiety (STICSA) is a widely used measure of state and trait anxiety. Within the Classical Testing Theory model, consistent findings provide support for its multidimensional factor structure, discriminant, convergent, and nomological validity, as well as age and gender invariance, across healthy a...

STICSA state scale

Objectives: This article aims to report on the sleep health characteristics of a population-level sample of young Australian adults and examine associations with measures of physical and mental health. Methods: A cross-sectional study using data from the Raine Study. Data from participants (n = 1234) born into the study (Generation 2) at the 22-...

Objective Insomnia, even when comorbid with other diagnoses is an independent health issue that warrants treatment. Cognitive behavioural therapy for insomnia (CBT-I) is the recommended first-line treatment. Although the science is clear that CBT-I supports outcomes for those with mental ill health, the routine use of CBT-I in mental health context...

Objectives: 1) Systematically review meta-analyses and systematic reviews that (a) explored health/lifestyle factors affecting sleep, and/or (b) investigated behavioral/psychological sleep interventions in young people (10-25-years); 2) Evaluate the quality of published literature, and, if an intervention; 3) Examine method and effectiveness of mo...

Insomnia is a chronic condition and major healthcare problem for Australians across the lifespan. Insomnia’s high prevalence and disease burden render it an important target for treatment. Further, and importantly, there exist established bidirectional links between insomnia and a range of health conditions, with insomnia both contributing to risk,...

Study Objectives: To determine cognitive profiles in individuals with short sleep duration insomnia (SSDI) and normal sleep duration insomnia (NSDI; also, paradoxical insomnia), compared to healthy sleepers. Method: Polysomnographic (PSG) and neuropsychological data were analysed from 902 community-based Raine Study participants aged 22 ± 0.6 years...

Study Objectives This randomized, double-blind, placebo-controlled, cross-over study was conducted to evaluate the safety and efficacy of two-weeks of nightly sublingual cannabinoid extract (ZTL-101) in treating chronic insomnia (symptoms ≥three months). Methods Co-primary study endpoints were safety of the medication based on adverse event report...

Objective: This study aimed to provide the first estimate of sleep knowledge, practices, and attitudes regarding paediatric sleep in Australian health professionals. Methods: 263 Australian health professionals (medical practitioners, nurses, psychologists, social workers, occupational therapists, pharmacists, dentists and sleep coaches) completed...

People with psychosis benefit enormously from Cognitive Behavioural Therapy for Insomnia (CBTI), although some variability exists in treatment outcomes. While recent efforts have focused on profiling sleep at treatment initiation, an alternative methodological approach involves using treatment response as a starting point to better understand what...

This study investigated sleep subtypes in schizophrenia, and their response to Cognitive Behavioural Therapy for Insomnia (CBT-I) treatment. Sleep profiling was conducted using latent class analysis on baseline Pittsburgh Sleep Quality Index data (N = 74 outpatients with schizophrenia who were poor sleepers, 52% male, mean age = 41.4 years). Of the...

Understanding the underlying mechanisms of recovery from insomnia is an important goal for improving existing treatments. In a randomised controlled trial, 57 participants with insomnia disorder were given either cognitive therapy (CT) or mindfulness-based therapy (MBT) following 4 sessions of CBT. Each participant was assessed on process measures...

Insomnia disorder is a high prevalence condition with a high disease burden, which, left untreated, can increase risk of poorer health outcomes. Due to Insomnia's tendency towards having a chronic course, long-term treatment approaches are required to reduce the impact of Insomnia over time. After reviewing the available literature, The Australasia...

Individuals with psychiatric disorders such as schizophrenia, bipolar disorder, and post-traumatic stress disorder often report Insomnia and difficulties sleeping which can significantly impede recovery, worsen symptoms, and reduce quality of life. This volume presents a detailed theoretical rationale and session-by-session outline for delivering C...

Sleep dysfunction is a pervasive issue in schizophrenia and psychosis. Current knowledge is drawn almost exclusively from studies using quantitative research methodologies that include measures and tools developed in healthy population groups. Qualitative studies investigating the first-person perspectives of sleep problems are therefore important...

Although cognitive behavioural therapy (CBT) for insomnia has resulted in significant reductions in symptoms, most patients are not classified as good sleepers after treatment. The present study investigated whether additional sessions of cognitive therapy (CT) or mindfulness-based therapy (MBT) could enhance CBT in 64 participants with primary ins...

This study examines cognitive and behavioral factors linked to insomnia in individuals with schizophrenia and other psychotic disorders (with and without insomnia) and healthy controls (with and without insomnia). Fifty-five psychiatric inpatients and 66 healthy controls (n = 25 with insomnia in both groups) completed the Insomnia Severity Index, T...

Symptoms of psychosis such as hallucinations and delusions can be intrusive and unwanted and often remain treatment-resistant. Due to recent progress in basic and clinical sciences, novel approaches such as sleep-based interventions are increasingly becoming offered to address the physical and mental health issues of people with severe mental illne...

The current article describes the psychometric properties of the Thought Control Questionnaire (TCQ; Wells & Davies, 1994) in 176 psychiatric inpatients at admission and discharge (352 completed TCQs). Factor analysis revealed four factors; Reappraisal/Distraction, Social Control, Punishment, and Worry. Scale descriptive statistics, reliabilities a...

To date, little research has endeavoured to discriminate between cognitive and somatic dimensions of trait anxiety and, consequently, it remains uncertain whether these anxiety dimensions can be reliably distinguished at the trait level. The four studies presented here support the validity of the distinction between cognitive and somatic anxiety at...

We describe the development of a cognitive therapy intervention for chronic insomnia. The therapy is based on a cognitive model which suggests that the processes that maintain insomnia include: (1) worry and rumination, (2) attentional bias and monitoring for sleep-related threat, (3) unhelpful beliefs about sleep, (4) misperception of sleep and da...

Research on mindfulness-based cognitive therapy (MBCT; Segal, Williams, & Teasdale, 2002a) has supported the effectiveness of this approach for use with preventing relapse in recurrent depression. This study evaluated the use of MBCT in a heterogeneous sample of 26 psychiatric outpatients with mood and/or anxiety disorders. Results from both comple...

Cognitive theories state that psychological disorders are associated with, and are possibly maintained by, interpretive biases, which are tendencies to make threatening interpretations of ambiguous stimuli. Recent models of insomnia have highlighted the importance of cognitive processes. The aim of this study was to empirically evaluate whether an...

Disorder-congruent interpretations of ambiguous stimuli characterize several psychological disorders and have been implicated in their maintenance. Models of insomnia have highlighted the importance of cognitive processes, but the possibility that biased interpretations are important has been minimally investigated. Hence, a priming methodology was...

The attempted control of intrusive, uncontrollable thoughts has been implicated in the maintenance of a range of psychological disorders. The current paper describes the refinement of the Thought Control Questionnaire Insomnia (TCQI; Behav. Cogn. Psychoth. 29 (2001)) through its administration to a sample (n=385) including good sleepers and individ...

Chapter 14 explores insomnia, its cognitive models and key cognitive constructs. Behavioural experiments are proposed to address unhelpful beliefs about sleep and tiredness, worry, monitoring, thoughts leading to safety behaviours, and investigate distorted perceptions.

A safety behaviour is an overt or covert strategy employed in order to prevent a feared outcome from occurring. These behaviours can, however, prevent the disconfirmation of unhelpful beliefs, and may make the feared outcome more likely to occur (Salkovskis, 1991). The current study extends Harvey's (2002a) investigation of safety behaviours in ins...