55 Result(s)
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Samuel R. Chamberlain
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Article
Open AccessPlacebo effects in randomized trials of pharmacological and neurostimulation interventions for mental disorders: An umbrella review
There is a growing literature exploring the placebo response within specific mental disorders, but no overarching quantitative synthesis of this research has analyzed evidence across mental disorders. We carri...
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Article
Open AccessClarifying and extending our understanding of problematic pornography use through descriptions of the lived experience
Problematic pornography use (PPU) is a complex and growing area of research. However, knowledge of the PPU lived experience is limited. To address this gap, we conducted an online qualitative study with 67 ind...
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Article
Hazardous Alcohol Use in Trichotillomania
Trichotillomania is a prevalent mental health condition characterized by repetitive hair-pulling. Its relationship to alcohol use problems has received virtually no research scrutiny. Adults with trichotilloma...
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Article
Open AccessThe impact of the initial COVID-19 outbreak on young adults’ mental health: a longitudinal study of risk and resilience factors
Few studies assessing the effects of COVID-19 on mental health include prospective markers of risk and resilience necessary to understand and mitigate the combined impacts of the pandemic, lockdowns, and other so...
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Article
Cortical dopamine reduces the impact of motivational biases governing automated behaviour
Motivations shape our behaviour: the promise of reward invigorates, while in the face of punishment, we hold back. Abnormalities of motivational processing are implicated in clinical disorders characterised by...
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Article
Reward processing in trichotillomania and skin picking disorder
Trichotillomania (hair pulling disorder) and skin picking disorder are common and often debilitating mental health conditions, grouped under the umbrella term of body focused repetitive behaviors (BFRBs). Alth...
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Article
Open AccessStructural gray matter differences in Problematic Usage of the Internet: a systematic review and meta-analysis
Problematic Usage of the Internet (PUI) has been linked to diverse structural gray matter changes in individual data studies. However, no quantitative synthesis across studies has been conducted. We aimed to i...
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Article
Open AccessThe effects of lisdexamfetamine dimesylate on eating behaviour and homeostatic, reward and cognitive processes in women with binge-eating symptoms: an experimental medicine study
Lisdexamfetamine dimesylate (LDX) is the only drug currently approved by the FDA for the treatment of Binge-Eating Disorder (BED), but little is known about the behavioural mechanisms that underpin the efficac...
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Article
Open AccessTransdiagnostic phenotypes of compulsive behavior and associations with psychological, cognitive, and neurobiological affective processing
Compulsivity is a poorly understood transdiagnostic construct thought to underlie multiple disorders, including obsessive-compulsive disorder, addictions, and binge eating. Our current understanding of the cau...
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Article
Correction to: Monoamine Oxidase Inhibitors (MAOIs) in Psychiatric Practice: How to Use them Safely and Effectively
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Article
Authors’ Reply to Ulrich: Comment on ‘Monoamine Oxidase Inhibitors (MAOIs) in Psychiatric Practice: How to Use Them Safely and Effectively’
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Reference Work Entry In depth
Obsessive Compulsive Disorders
Obsessive-compulsive disorder (OCD) is a common and debilitating psychiatric condition. Relatively little, however, is understood about the etiology and brain basis of OCD despite decades of research. Although...
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Reference Work Entry In depth
Linking Addictive and Obsessive-Compulsive Behaviors
Addictive and obsessive-compulsive behaviors share a number of conceptual similarities and risk factors, indicating potential transdiagnostic mechanisms. This chapter reviews these similarities, with a focus o...
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Living Reference Work Entry In depth
Linking addictive and obsessive-compulsive behaviours
Addictive and obsessive-compulsive behaviors share a number of conceptual similarities and risk factors, indicating potential transdiagnostic mechanisms. This chapter reviews these similarities, with a focus o...
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Article
Open AccessAuthor Correction: Associations between dimensions of behaviour, personality traits, and mental-health during the COVID-19 pandemic in the United Kingdom
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Article
Open AccessAssociations between dimensions of behaviour, personality traits, and mental-health during the COVID-19 pandemic in the United Kingdom
The COVID-19 pandemic (including lockdown) is likely to have had profound but diverse implications for mental health and well-being, yet little is known about individual experiences of the pandemic (positive a...
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Article
Open AccessDigital Hazards for Feeding and Eating: What We Know and What We Don't
We aimed to accrue recent evidence exploring effects of modern online activities (e.g., Internet use) on feeding and eating disorder symptoms, and related traits. We examined available evidence to ascertain an...
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Article
Monoamine Oxidase Inhibitors (MAOIs) in Psychiatric Practice: How to Use them Safely and Effectively
Monoamine oxidase inhibitors (MAOIs) were among the first licensed pharmacological treatments for patients with depression but over time have fallen out of mainstream clinical use. This has led to a loss of cl...
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Article
Open AccessPersonality traits and their clinical associations in trichotillomania and skin picking disorder
Despite being discussed in the psychiatric literature for decades, very little is known about personality features associated with trichotillomania and skin picking disorder (known as body focused repetitive b...
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Article
Open AccessBrain micro-architecture and disinhibition: a latent phenoty** study across 33 impulsive and compulsive behaviours
Impulsive and compulsive symptoms are common, tend to co-occur, and collectively account for a substantive global disease burden. Latent phenoty** offers a promising approach to elucidate common neural mecha...
