Publications by authors named "Edouard Kayayan"

Article Synopsis
  • Cannabis Use Disorder (CUD) is linked to negative effects on mental health, social interactions, and cognitive abilities, with increasing prevalence rates highlighting the need for effective risk assessment.
  • Utilizing advanced MRI techniques, this study analyzed white matter (WM) changes in 56 individuals with CUD compared to 38 healthy controls, revealing significant alterations in structural connectivity and WM density in specific brain regions.
  • Results indicate that higher cannabis use correlates with increased connectivity strength and specific age-related changes in WM density, providing new insights into the brain’s structural changes associated with CUD.
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Article Synopsis
  • Impulsivity and compulsivity are linked to problematic internet use (PUI), but how they relate to specific symptoms of PUI has not been well studied.
  • The study used network analysis to assess the connections between different facets of impulsivity, compulsivity, and PUI symptoms among 370 Australian adults.
  • Findings showed that certain impulsivity traits and compulsivity have unique associations with PUI symptoms, with negative urgency and compulsivity being key factors influencing PUI behaviors, suggesting areas for future research and intervention.
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Objective: Understanding the impact of lifestyle on mental illness symptoms is important for informing psycho-education and developing interventions which target mental and physical comorbidities. Obsessive-compulsive and related disorders can have a significant impact on health-related quality of life and physical health. However, our understanding of the impact of lifestyle on obsessive-compulsive symptoms and broader compulsive and impulsive problematic repetitive behaviours is limited.

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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.

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The COVID-19 pandemic has resulted in high levels of psychological distress worldwide, with experts expressing concern that this could result in corresponding increases in addictive behaviors as individuals seek to cope with their distress. Further, some individuals may be at greater risk than others for developing problematic addictive behaviors during times of high stress, such as individuals with high trait impulsivity and compulsivity. Despite the potential of such knowledge to inform early detection of risk, no study to date has examined the influence of trait impulsivity and compulsivity on addictive behaviors during COVID-19.

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