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Tashia Petker
St. Joseph's Healthcare Hamilton
PsychologyPsychological interventionCannabisMedicineMeta-analysis
8Publications
2H-index
74Citations
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Publications 11
Newest
#1Tashia PetkerH-Index: 2
#2Jane DeJesus (McMaster University)
Last. Geoffrey B. HallH-Index: 26
view all 12 authors...
There is some evidence that cannabis use is associated with lower cognitive performance and symptoms of attention-deficit/hyperactivity disorder (ADHD), but the existing literature is relatively inconsistent, potentially due to small samples in previous studies. Using a dimensional design, the current study examined cannabis use severity and age of first cannabis use in relation to neurocognitive performance and ADHD symptoms in a large sample of community adults (N = 1,008, Mage = 38.49, 56.0% ...
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#1Jillian Halladay (McMaster University)H-Index: 2
#2Justin Scherer (St. Joseph's Healthcare Hamilton)H-Index: 1
Last. Catharine MunnH-Index: 2
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Abstract Purpose This systematic review summarizes and critically appraises the existing literature on brief interventions (BIs) for cannabis use among emerging adults. Methods Eligible BIs were operationalized as 1-2 sessions focused exclusively on cannabis use for samples with mean ages between 15 and 30. Outcomes related to cannabis use, other substance use, mental health, help-seeking, or functional status were included. Two independent reviewers screened a total of 3,638 records, identifyin...
1 CitationsSource
#1Tashia PetkerH-Index: 2
#2Max M. OwensH-Index: 9
Last. James MacKillopH-Index: 46
view all 6 authors...
Background There is evidence that heavy cannabis use is associated with decrements in cognitive performance, but findings are mixed and studies are often limited by small sample sizes and narrow adjustment for potential confounding variables. In a comparatively large sample, the current study examined associations between multiple indicators of cannabis use in relation to performance on a variety of neuropsychological tasks.
2 CitationsSource
#1Tashia Petker (St. Joseph's Healthcare Hamilton)H-Index: 2
#2Jillian Halladay (St. Joseph's Healthcare Hamilton)H-Index: 2
Last. James MacKillop (St. Joseph's Healthcare Hamilton)H-Index: 46
view all 8 authors...
Heavy episodic drinking (HED) refers to alcohol consumption that exceeds the recommended threshold for a given episode and increases risk for diverse negative alcohol-related consequences. A pattern of weekly HED is most prevalent in emerging adults (i.e., age 18–25). However, rates of HED consistently decline in the mid to late twenties, referred to as ‘aging out’ or ‘maturing out’ of HED. Although many individual studies have followed changes in drinking behaviour over the transition to adulth...
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#1Vanessa Morris (McMaster University)H-Index: 2
#1Vanessa L. Morris (McMaster University)H-Index: 1
Last. Michael Amlung (McMaster University)H-Index: 17
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1 CitationsSource
#1Lana Vedelago (St. Joseph's Healthcare Hamilton)H-Index: 3
#2Michael Amlung (St. Joseph's Healthcare Hamilton)H-Index: 17
Last. James MacKillop (St. Joseph's Healthcare Hamilton)H-Index: 46
view all 10 authors...
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#1Max M. Owens (UGA: University of Georgia)H-Index: 9
#2Shannon McNally (UGA: University of Georgia)H-Index: 1
Last. James MacKillop (St. Joseph's Healthcare Hamilton)H-Index: 46
view all 7 authors...
Worldwide, cannabis is one of the most widely used psychoactive substances and cannabis use has been implicated in poorer performance in several cognitive domains, including working memory (WM). However, the neural mechanisms underlying these WM decrements are not well understood and the current study investigated the association of cannabis involvement with WM performance and associated neural activation in the Human Connectome Project (N = 1038). Multiple indicators of cannabis involvement wer...
1 CitationsSource
#1Jillian Halladay (St. Joseph's Healthcare Hamilton)H-Index: 2
#2Tashia Petker (St. Joseph's Healthcare Hamilton)H-Index: 2
Last. James MacKillop (St. Joseph's Healthcare Hamilton)H-Index: 46
view all 5 authors...
Background Rates of cannabis use are highest during emerging adulthood (age 18–25), with the prevalence of near daily and daily increasing among this age group. Emerging adults are clinically challenging in terms of harmful cannabis use due to perceptions of high rates of peer use, social acceptance, and low risk of harm. Brief interventions to increase awareness and promote motivation to change are therefore particularly important for this age group. There is existing evidence on the effectiven...
2 CitationsSource
#1Jillian HalladayH-Index: 2
#2Tashia PetkerH-Index: 2
Last. James MacKillopH-Index: 46
view all 5 authors...
Source
#1Vanessa L. Morris (McMaster University)H-Index: 1
#2Michael Amlung (McMaster University)H-Index: 17
Last. James MacKillop (McMaster University)H-Index: 46
view all 6 authors...
11 CitationsSource
12