Igor Yakovenko

Dalhousie University | Dal · Department of Psychology and Neuroscience

Objectives Posttraumatic stress disorder (PTSD) and cannabis use disorder (CUD) commonly co-occur. Conditioned associations between psychological trauma cues, distress, cannabis use, and desired relief outcomes may contribute to the comorbidity. These conditioned associations can be studied experimentally by manipulating trauma cue exposure in a cu...

Anxiety sensitivity (AS), hopelessness (H), sensation seeking (SS), and impulsivity (IMP) are traits implicated in substance misuse risk. Protective behavioral strategies for marijuana (PBS-M) are behaviors that decrease adverse effects of cannabis use. We hypothesized H, SS, and IMP would be associated with increased adverse cannabis outcomes via...

Trauma cue-elicited activation of automatic cannabis-related cognitive biases are theorized to contribute to comorbid posttraumatic stress disorder and cannabis use disorder. This phenomenon can be studied experimentally by combining the trauma cue reactivity paradigm (CRP) with cannabis-related cognitive processing tasks. In this study, we used a...

Introduction: While individuals have many motives to gamble, one particularly risky motive for gambling is to cope with negative affect. Conflict with one's romantic partner is a strong predictor of negative affect, which may elicit coping motives for gambling and, in turn, gambling-related problems. Support for this mediational model was demonstr...

Objectives Derived from classical conditioning theory and rooted in motivational mechanisms, cue reactivity paradigms (CRPs) are used in addictions research to measure participants' propensities for substance‐relevant responses (e.g., craving) during exposure to substance‐relevant cues (e.g., drug paraphernalia). CRPs are also useful in PTSD‐addict...

When experiencing mental health challenges, we all deserve treatments that actually work. Whether you are a healthcare consumer, student, or mental health professional, this book will help you recognize implausible, ineffective, and even harmful therapy practices while also considering recent controversies. Research-supported interventions are iden...

Background: Polysubstance use, which increases the risk for negative consequences of substance use, is common among emerging adults who regularly consume substances by vaping. Examining predictors of polysubstance vaping is crucial for understanding whether this novel form of substance consumption lends itself equally efficaciously to established...

Caring for children with intellectual and developmental disabilities (IDD) can cause an enormous physical and emotional burden, and therefore these parents have an elevated risk to experience mental health problems. The characteristics of current healthcare systems and parents’ responsibilities to care for their children seem to impede their access...

Sports betting is one of the most popular forms of gambling in Canada; recent prevalence estimates indicate that 7.9% of Canadian adults endorsed gambling on sports in the past year. The ongoing COVID-19 pandemic led to the temporary closure of most major sports leagues worldwide beginning in March of 2020. These sudden closures created a dramatic...

Background. There have been notable increases in the use of cannabidiol (CBD) for therapeutic purposes, such as in the treatment of stress- and anxiety- related disorders. Preliminary research has demonstrated that CBD decreases indices of stress and anxiety. However, drug effects in humans are thought to be comprised of both pharmacological proper...

Social norms feedback interventions are effective in correcting overestimations of peer alcohol use and changing undergraduates' drinking behaviors. Undergraduates represent a high-risk group for harmful prescription drug use (PDU), yet a group-based social norms intervention has yet to be investigated for undergraduate PDU. Our objectives involved...

Caring for children with special needs can cause an enormous physical and emotional burden, and therefore these parents have an elevated risk to experience mental health problems. The characteristics of current healthcare systems and parents’ responsibilities to care for their children seem to impede their access to mental healthcare. There is so f...

Parents of children with intellectual and developmental disorders (IDDs) often encounter parenting-related traumatic events. Trauma exposure is a risk factor for mental health problems, including posttraumatic stress disorder (PTSD). Little is known regarding the types of traumatic events that parents commonly experience and how to best assess pare...

Background : Multiple sclerosis (MS) is a chronic demyelinating disease which leads to sensory, motor, autonomic, and cognitive symptoms. Cannabis is a common way for persons with MS (pwMS) to seek symptomatic therapy. Given the capacity for both cannabis and MS to cause cognitive impairment, it is important to determine whether there is any negati...

Background Relationships exist between perceived peer and own use of alcohol, cannabis, and tobacco, particularly when peers and participants are sex-matched. We investigated sex influences on social norms effects for college students’ non-medical prescription drug use (NMPDU). Methods: N = 1986 college students reported on their perceptions of mal...

Rationale: Cannabidiol (CBD) has been reported to attenuate stress and anxiety, but little is known about the extent to which such effects result from pharmacological versus expectancy factors. Objectives: We evaluated whether CBD expectancy alone could influence stress, anxiety, and mood, and the extent to which beliefs regarding CBD effects pred...

Background and aim: A robust association exists between substance use and personality, with personality risk factors representing phenotypes of vulnerability to substance misuse. As such, personality risk factors may be valuable constructs for understanding specific motivations for substance misuse. Given the loosening of restrictions on cannabis w...

Despite evidence for effectiveness, only a small proportion of individuals with gambling disorder ever access treatment and support resources for their problem. Voluntary self-exclusion (VSE) programs are an ideal circumstance to engage individuals who are reluctant or have not yet sought formal treatment, given that individuals are already electin...

Only a fraction of problematic cannabis users ever seek treatment from specialty addiction services. This gap could be reduced via online brief interventions and self-help resources; however, it is not clear whether cannabis users would be interested in accessing those tools. We examined whether cannabis use, motives for using cannabis, and protect...

The four-factor vulnerability model posits that the personality factors of hopelessness, anxiety sensitivity, impulsivity, and sensation seeking are relevant for engagement in and escalation of addictive behaviours (Conrod et al., 2000a). While initially validated for substance misuse, this model has not yet been utilized in studying behavioural ad...

Background and hypotheses: Extant research has not studied whether norm perceptions differ between young adult cannabis users who do and do not meet screening criteria for problematic cannabis use. Drawing on sociocultural norms research on alcohol, we hypothesized that users meeting screening criteria for cannabis problems would be more likely tha...

Background and aims Published research on the relationship between disordered gambling and schizophrenia is limited. However, existing data suggest that individuals with schizophrenia/schizoaffective disorder may have a high prevalence of co-occurring disordered gambling. As such, effective strategies for screening and assessing gambling-related pr...

Individuals with disordered gambling often report at least one other lifetime psychiatric diagnosis. Although prevalence rates vary, there is substantial evidence for co-morbidity being the rule rather than the exception. Despite this known association, there has not been a recent comprehensive review of co-morbidity in disordered gambling other th...

Purpose of review Over the last decade, treatments for disordered gambling have developed rapidly. The goal of this paper is to review and to critically evaluate the literature published on the treatment of disordered gambling in the past 3 years. Important findings are emphasized and accompanied by the authors’ personal observations on controversi...

Disordered gambling is best conceptualized as a continuum of severity. Previous research has demonstrated the utility of studying individuals at all points of this spectrum. The sequence of the development of gambling problems and change in gambling involvement along this continuum of severity is not well understood. The present study examined the...

Little research has examined the association between disordered gambling and psychosis. In addition, clinicians treating schizophrenia or schizoaffective disorders rarely screen for or treat comorbid gambling problems due to diagnostic overshadowing. Thus, the effects of disordered gambling on symptoms of schizophrenia and vice versa remain largely...

The present study of recovery from cannabis use disorders was undertaken with 2 primary objectives that address gaps in the literature. The first objective was to provide an exploratory portrait of the recovery process from cannabis use disorders, comparing individuals who recovered naturally with those who were involved in treatment. The second ob...

Motivational interviewing is a client-centered therapeutic intervention that aims to resolve ambivalence toward change. We conducted a systematic review and meta-analysis on the efficacy of motivational interviewing, compared to non-motivational interviewing controls, in the treatment of disordered gambling. Electronic databases were searched for r...

Major depression is among the most common comorbid conditions in problem gambling. However, little is known about the effects of comorbid depression on problem gambling. The present study examined the prevalence of current major depression among problem gamblers (N = 105) identified from a community sample of men and women in Alberta, and examined...

Reviews the book, The History of Problem Gambling: Temperance, Substance Abuse, Medicine, and Metaphors by Peter Ferentzy and Nigel E. Turner (see record 2013-14819-000 ). The book examines the history and evolution of the disease model of addiction as it relates to problem gambling and substance abuse in general. It evaluates the challenges genera...

A diverse range of treatments have been adapted for gambling disorders. To date, the results of three meta-analyses have been reported. The most recent one was conducted in 2009 and included 25 outcome studies, conducted between 1980 and 2000, of cognitive-behavioural therapies (CBTs) for gambling disorders (Gooding & Tarrier, 2009). The authors fo...