Patrick C. L. Heaven

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Long-term heavy cannabis use can result in memory impairment. Adolescent users may be especially vulnerable to the adverse neurocognitive effects of cannabis. In a cross-sectional and prospective neuropsychological study of 181 adolescents aged 16–20 (mean 18.3 years), we compared performance indices from one of the most widely used measures of learning and(More)
Attention-Deficit/Hyperactivity Disorder (AD/HD) is the most common psychiatric disorder of childhood, but it is becoming increasingly apparent that more than half the childhood sufferers will continue to manifest symptoms of the disorder as adults. While the EEG of children with AD/HD has been extensively examined, comparatively little research has been(More)
Low self-esteem is usually linked to negative outcomes such as poor mental health, but is this always the case? Based on a contextual behavioural model, we reasoned that self-compassion would weaken the link between low self-esteem and low mental health. Self-compassion involves accepting self-doubt, negative self-evaluations and adversity as part of the(More)
This study assessed the personality factors associated with self-reported delinquency. Respondents were 282 14-year-olds who were traced for follow-up 2 years later. The follow-up success rate was more than 80%. In line with previous work which has adopted a trait personality perspective to understanding antisocial and delinquent behaviours, it was(More)
Reflection impulsivity—a failure to gather and evaluate information before making a decision—is a critical component of risk-taking and substance use behaviours, which are highly prevalent during adolescence. The Information Sampling Test was used to assess reflection impulsivity in 175 adolescents (mean age 18.3, range 16.5–20; 55% female)—48 cannabis(More)
Attention-Deficit/Hyperactivity Disorder (AD/HD) is the most common psychiatric disorder of childhood, but it is becoming increasingly more apparent that more than half the childhood sufferers will continue to manifest symptoms of the disorder as adults. While EEG coherence in children with AD/HD has been examined extensively, no studies have investigated(More)
Amongst adults, low emotion identification skill (EIS) relates to poor emotion regulation strategies, higher rates of anxiety and depression, and higher rates of somatic illness and disease [Taylor, G. J., & Bagby, R. M. (2004). New trends in alexithymia research. Psychotherapy and Psychosomatics, 73, 68-77]. Little research has examined EIS in adolescence(More)
The nature and potential benefit of awareness and experiential acceptance in adolescence remains neglected and understudied. To address this gap in the literature, 776 students (50% female) in Grade 10 completed measures of mindfulness, emotional awareness, and experiential acceptance, as well as measures of major personality traits. To study prospective(More)
This article assesses whether perceived parental style influenced the extent to which adolescents became increasingly conscientious and whether changes in conscientiousness influenced academic grades 1 year later. Parental styles, conscientiousness, verbal, and numerical ability at Time 1 were measured. One year later conscientiousness was again assessed,(More)