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Examining the unique relationships between problematic use of the internet and impulsive and compulsive tendencies: network approach
- Chang Liu, Kristian Rotaru, Lei Ren, Samuel R. Chamberlain, Erynn Christensen, Mary-Ellen Brierley, Karyn Richardson, Rico S. C. Lee, Rebecca Segrave, Jon E. Grant, Edouard Kayayan, Sam Hughes, Leonardo F. Fontenelle, Amelia Lowe, Chao Suo, René Freichel, Reinout W. Wiers, Murat Yücel, Lucy Albertella
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- Journal:
- BJPsych Open / Volume 10 / Issue 3 / May 2024
- Published online by Cambridge University Press:
- 09 May 2024, e104
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- Article
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Background
Both impulsivity and compulsivity have been identified as risk factors for problematic use of the internet (PUI). Yet little is known about the relationship between impulsivity, compulsivity and individual PUI symptoms, limiting a more precise understanding of mechanisms underlying PUI.
AimsThe current study is the first to use network analysis to (a) examine the unique association among impulsivity, compulsivity and PUI symptoms, and (b) identify the most influential drivers in relation to the PUI symptom community.
MethodWe estimated a Gaussian graphical model consisting of five facets of impulsivity, compulsivity and individual PUI symptoms among 370 Australian adults (51.1% female, mean age = 29.8, s.d. = 11.1). Network structure and bridge expected influence were examined to elucidate differential associations among impulsivity, compulsivity and PUI symptoms, as well as identify influential nodes bridging impulsivity, compulsivity and PUI symptoms.
ResultsResults revealed that four facets of impulsivity (i.e. negative urgency, positive urgency, lack of premeditation and lack of perseverance) and compulsivity were related to different PUI symptoms. Further, compulsivity and negative urgency were the most influential nodes in relation to the PUI symptom community due to their highest bridge expected influence.
ConclusionsThe current findings delineate distinct relationships across impulsivity, compulsivity and PUI, which offer insights into potential mechanistic pathways and targets for future interventions in this space. To realise this potential, future studies are needed to replicate the identified network structure in different populations and determine the directionality of the relationships among impulsivity, compulsivity and PUI symptoms.
The role of psychological distress in the relationship between lifestyle and compulsivity: An analysis of independent, bi-national samples
- Mary-Ellen E. Brierley, Lucy Albertella, Kristian Rotaru, Louise Destree, Emma M. Thompson, Chang Liu, Erynn Christensen, Amelia Lowe, Rebecca A. Segrave, Karyn E. Richardson, Edouard Kayayan, Samuel R. Chamberlain, Jon E. Grant, Rico S. C. Lee, Sam Hughes, Murat Yücel, Leonardo F. Fontenelle
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- Journal:
- CNS Spectrums / Volume 28 / Issue 2 / April 2023
- Published online by Cambridge University Press:
- 13 December 2021, pp. 164-173
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Background
Poor mental health is a state of psychological distress that is influenced by lifestyle factors such as sleep, diet, and physical activity. Compulsivity is a transdiagnostic phenotype cutting across a range of mental illnesses including obsessive–compulsive disorder, substance-related and addictive disorders, and is also influenced by lifestyle. Yet, how lifestyle relates to compulsivity is presently unknown, but important to understand to gain insights into individual differences in mental health. We assessed (a) the relationships between compulsivity and diet quality, sleep quality, and physical activity, and (b) whether psychological distress statistically contributes to these relationships.
MethodsWe collected harmonized data on compulsivity, psychological distress, and lifestyle from two independent samples (Australian n = 880 and US n = 829). We used mediation analyses to investigate bidirectional relationships between compulsivity and lifestyle factors, and the role of psychological distress.
ResultsHigher compulsivity was significantly related to poorer diet and sleep. Psychological distress statistically mediated the relationship between poorer sleep quality and higher compulsivity, and partially statistically mediated the relationship between poorer diet and higher compulsivity.
ConclusionsLifestyle interventions in compulsivity may target psychological distress in the first instance, followed by sleep and diet quality. As psychological distress links aspects of lifestyle and compulsivity, focusing on mitigating and managing distress may offer a useful therapeutic approach to improve physical and mental health. Future research may focus on the specific sleep and diet patterns which may alter compulsivity over time to inform lifestyle targets for prevention and treatment of functionally impairing compulsive behaviors.
The place of obsessive–compulsive and related disorders in the compulsive–impulsive spectrum: a cluster-analytic study
- Leonardo F. Fontenelle, Louise Destrée, Mary-Ellen Brierley, Emma M. Thompson, Murat Yücel, Rico Lee, Lucy Albertella, Sam R. Chamberlain
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- Journal:
- CNS Spectrums / Volume 27 / Issue 4 / August 2022
- Published online by Cambridge University Press:
- 12 April 2021, pp. 486-495
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Background
The extent to which obsessive–compulsive and related disorders (OCRDs) are impulsive, compulsive, or both requires further investigation. We investigated the existence of different clusters in an online nonclinical sample and in which groups DSM-5 OCRDs and other related psychopathological symptoms are best placed.
MethodsSeven hundred and seventy-four adult participants completed online questionnaires including the Cambridge–Chicago Compulsivity Trait Scale (CHI-T), the Barratt Impulsiveness Scale (BIS-15), and a series of DSM-5 OCRDs symptom severity and other psychopathological measures. We used K-means cluster analysis using CHI-T and BIS responses to test three and four factor solutions. Next, we investigated whether different OCRDs symptoms predicted cluster membership using a multinomial regression model.
ResultsThe best solution identified one “healthy” and three “clinical” clusters (ie, one predominantly “compulsive” group, one predominantly “impulsive” group, and one “mixed”—“compulsive and impulsive group”). A multinomial regression model found obsessive–compulsive, body dysmorphic, and schizotypal symptoms to be associated with the “mixed” and the “compulsive” clusters, and hoarding and emotional symptoms to be related, on a trend level, to the “impulsive” cluster. Additional analysis showed cognitive-perceptual schizotypal symptoms to be associated with the “mixed” but not the “compulsive” group.
ConclusionsOur findings suggest that obsessive–compulsive disorder; body dysmorphic disorder and schizotypal symptoms can be mapped across the “compulsive” and “mixed” clusters of the compulsive–impulsive spectrum. Although there was a trend toward hoarding being associated with the “impulsive” group, trichotillomania, and skin picking disorder symptoms did not clearly fit to the demarcated clusters.
12 - Neurobiology of trichotillomania
- Edited by Allan V. Kalueff, National Institute of Mental Health, Washington DC, Justin L. La Porte, National Institute of Mental Health, Washington DC, Carisa L. Bergner, National Institute of Mental Health, Washington DC
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- Book:
- Neurobiology of Grooming Behavior
- Published online:
- 04 August 2010
- Print publication:
- 20 May 2010, pp 252-270
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Summary
Summary
Trichotillomania (TTM) is a common debilitating impulse control disorder, which is under-recognized in clinical practice. New research shows interesting similarities between TTM, other impulse control disorders, and obsessive–compulsive disorder (OCD), while also revealing important differences in some endophenotypic measures. In this chapter we review new advances in genetic, family, neurocognitive, neuroimaging, and neuropharmacological studies. Neural abnormalities in the amygdalo–hippocampal formation and frontal–subcortical circuits are discussed. Animal models of hair pulling are also outlined and may prove a fruitful avenue for future research.
Introduction
Trichotillomania is a neuropsychiatric disorder characterized by noticeable hair loss due to a recurrent failure to resist impulses to pull out hairs. The hair pulling is usually preceded by mounting tension and followed by a sense of relief or gratification (WHO 2002). It predominantly affects females (Swedo and Leonard 1992), and its onset is usually in late childhood and adolescence (Walsh and McDougle 2001). A subgroup with very early onset of hair pulling in children under the age of six may be more benign and self-limiting (Keren et al. 2006). Often accompanied by shame and distress, TTM is under-recognized in clinical practice and its prevalence is likely to be greater than currently understood (Bohne et al. 2005b). There have been no population-based epidemiological studies of TTM. In a sample of 2579 college students in the United States, a lifetime prevalence of TTM was seen in 0.6%, though subthreshold symptoms not reaching diagnostic criteria were identified in 1.5% of males and 3.4% of females (Christenson et al. 1991b).