Publications by authors named "Shead N"

Objective: Cannabis has become more available in Canada since its legalization in 2018. Many individuals who use cannabis also use alcohol (co-use), which can be used either at the same time such that their effects overlap (simultaneous use) or at different times (concurrent use). Though studies have identified predictors of co-use relative to single-substance use, less is known about the predictors of specific types of co-use.

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Background: Compulsive buying-shopping is recognised as a significant mental health concern, yet its aetiology is largely understudied. A known risk factor for compulsive buying-shopping is adverse childhood experiences (ACEs). ACEs are also associated with greater problems regulating emotions, as well as depression and anxiety.

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Schizotypal traits include abnormalities in cognition, behavior, and interpersonal relationships that are similar, yet less severe than psychotic symptomology. It is estimated that approximately 5% of the general population displays psychotic symptoms and experiences that can be considered schizotypal in nature, but there is little research examining the neurological correlates of these traits. The mismatch negativity (MMN) event-related potential is an objective measure of auditory change detection derived from electroencephalography.

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Problematic cannabis use is highly prevalent among postsecondary students. Consequently, there is a need to examine risk factors associated with problematic cannabis use in this population. The present study investigated whether emotion dysregulation mediates the relationship between adverse childhood experiences (ACEs) and problematic cannabis use, and whether affective impulsivity (negative and positive urgency) uniquely moderates this relationship.

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Article Synopsis
  • The study investigated the relationship between schizotypy traits and sensory gating ability in individuals with varying levels of schizotypy, using tests like the paired click paradigm.
  • It found no significant differences in sensory gating between high and low schizotypy groups, suggesting that participants might have had issues with attention allocation instead.
  • The research emphasizes the need to consider participants across the full spectrum of schizotypy and to include measures of related factors like impulsivity to better understand their effects on sensory processing.
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A consequence of the proliferation of online communication is the concerning presence of antisocial behavior observed in virtual spaces. Research suggests the cognitive component of empathy is hindered by features of electronic communication which facilitates antisocial behaviors online. Investigations into how features of online communication inhibit cognitive empathy are lacking, and findings on moral disengagement and antisocial behavior have yet to be integrated with studies on cognitive empathy and electronic communication.

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Despite the key role that hospital and home care nurses have in supporting family carers in transitional care, there is limited comparative information on their attitudes toward supporting family carers during care transitions. As part of a larger research project, we conducted a descriptive comparative study using a cross-sectional survey. Canadian nurses (105 hospital, 34 home visiting) completed a demographic questionnaire and the Families' Importance in Nursing Care-Nurses' Attitudes (FINC-NA) measurement tool.

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One psychosocial factor that has been identified to motivate gambling is personal relative deprivation (PRD), which refers to resentment stemming from the belief that one is deprived of a desired and deserved outcome compared to some referent. Although several lines of evidence point to a positive association between PRD and the urge to gamble, the factors that might moderate this relation have yet to be investigated. Through a quantitative research synthesis, we sought to test (a) the overall relation between PRD and gambling urges among people reporting recent gambling experience, and (b) whether this relation is moderated by problem gambling severity.

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Several lines of research have provided evidence for a relation between personal relative deprivation and gambling. Despite this knowledge, little is known about possible psychological mechanisms through which personal relative deprivation exerts its influence on gambling. The authors of this research sought to examine one such mechanism: the desire for immediate rewards.

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Risk factors for youth gambling problems are best understood within an ecological model recognizing the interwoven relationship that exists between the individual and their environment. Empirical studies covering individual, relationship, community, and societal factors associated with adolescent gambling problems are reviewed. The cumulative body of research suggests that males who are exposed to gambling at an earlier age are at greater risk of developing gambling problems.

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Sixty college students performed three discounting tasks: probability discounting of gains, probability discounting of losses, and delay discounting of gains. Each task used an adjusting-amount procedure, and participants' choices affected the amount and timing of their remuneration for participating. Both group and individual discounting functions from all three procedures were well fitted by hyperboloid discounting functions.

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This study explores correlates of psychological distress and relationship satisfaction among concerned significant others (CSOs) of pathological gamblers. CSOs often seek help in dealing with the gambling problem and are influential in recovery, but little is known about the sources of their distress. A sample of 186 CSOs responded to media announcements offering telephone and bibliotherapy support.

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