Tags: alcohol | aspd | ipv

Seeing Green? Marijuana Use Associated With Domestic Violence

Marijuana and the Law

(Emilija Randjelovic/Dreamstime)

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Monday, 08 October 2018 04:15 PM Current | Bio | Archive

New Research Identifies Growing List of Risk Factors for Interpersonal Ciolence

Domestic violence awareness month highlights the epidemic of domestic abuse, a crime that often flies under the radar. Having prosecuted countless crimes of domestic abuse in my over 20 years as a prosecutor, my experience is consistent with research findings regarding the fact that physical abuse is often precipitated by observable risk factors.

In an attempt to reduce the likelihood of interpersonal violence, there has traditionally been an emphasis placed on precursors such as anger management, history of violent behavior, and alcohol abuse.

But marijuana use?

Because it is a drug that enjoys a more peaceful reputation than many other illicit substances, the finding that it is linked to interpersonal violence requires us to re-examine the complicated relationship between personality traits, substance use, and domestic violence.

Rolling Out the Green Carpet

As an increasing number of states continue to legalize marijuana for both medical and recreational use, research continues to focus on potential consequences of using the substance. There is a strong focus on marijuana´s potential impact on driving, operating machinery, performing cognitive tasks, caring for children, and other activities that require mental alertness and good judgment.

Physiologically, marijuana can create relaxation, decrease reaction time, stimulate appetite, and promote sedation. But can it make someone violent? According to recent research, the answer is yes.

Marijuana Use and Interpersonal Violence

A study by Ryan C. Shorey et al. (2018) linked marijuana use and interpersonal violence (IPV). The authors began by reporting that marijuana use is commonly reported among men arrested for domestic violence, a report that is concerning given the fact that past research has established a link between marijuana use and IPV.

Acknowledging IPV as a serious public health problem, the authors set out to discover whether marijuana was linked to IPV on its own, versus in combination with other factors. Accordingly, their research examined the link between marijuana use and IPV perpetration after controlling for three known risk factors for IPV: alcohol use and related problems, antisocial personality symptoms, and relationship satisfaction.

They found that marijuana use was “positively and significantly associated” with all forms of IPV (physical, psychological, and sexual) even after controlling for all three risk factors.

They also found that the link between marijuana use and sexual IPV was stronger when combined with high levels of alcohol consumption and related problems, as compared to low levels.

The authors note this finding is consistent with past research, which suggests that polysubstance users report more frequent IPV episodes than their nonpolysubstance using counterparts.

The link between marijuana and domestic violence may be better understood within the context of how other risk factors lead to domestic abuse.

Other Domestic Violence Risk Factors

Megan J. Brem et al. (2018) found other factors to be linked to IPV in men arrested for domestic violence. The title of their article, "Antisocial Traits, Distress Tolerance, and Alcohol Problems as Predictors of Intimate Partner Violence in Men Arrested for Domestic Violence," described the scope of their research.

The authors adopt a research-based definition of distress tolerance as "an ability to withstand aversive internal and external states elicited by a stressor." They note that people with lower levels of distress tolerance are likely to engage in impulsive behaviors geared to reduce distress, rather than strategize long-term solutions. Two such impulsive behaviors are IPV and alcohol use.

In their study, they found that traits of antisocial personality disorder (ASPD) were linked to psychological aggression perpetration both directly and indirectly, through distress tolerance and problematic use of alcohol. They also found that ASPD traits were linked to elevated problems with alcohol, which was linked to psychological aggression perpetration.

However, when they controlled for psychological aggression perpetration, they found that neither distress tolerance nor problems with alcohol explained the relationship between traits related to ASPD traits and physical assault. They opine, "It is plausible that alcohol problems increased participants’ susceptibility to involvement in antisocial activities, including IPV perpetration, thereby reducing the likelihood that distress tolerance would account for the relationship."

Future research will no doubt examine whether substances other than alcohol may increase susceptibility to IPV perpetration in the same fashion. Also note that in correlational studies, it's always possible that hidden variables (such as personality traits or psychopathology) could explain the association between the variables under examination.

Targeting All Forms of Domestic Abuse

Ideally, the goal is to prevent all forms of domestic abuse. Some abusers use psychological aggression to control their victims with domination, intimidation, and humiliation. They destroy their victim´s sense of self worth, value, and importance. Other toxic relationships include physical abuse, which can progress incrementally over a time—often culminating in significant physical harm.

In all abusive relationships, however, knowledge of risk factors is helpful for both potential victims and abusers, with an eye toward intervention, treatment, and ultimately eradication of this often-deadly societal epidemic.

This article was originally posted in Psychology Today.

Wendy L. Patrick is a career prosecutor, named the Ronald M. George Public Lawyer of the Year, and recognized by her peers as one of the Top Ten criminal attorneys in San Diego by the San Diego Daily Transcript. She has completed over 150 trials ranging from human trafficking, to domestic violence, to first-degree murder. She is President of the Association of Threat Assessment Professionals San Diego Chapter and an ATAP Certified Threat Manager. Dr. Patrick is a frequent media commentator with over 3,00 appearances including CNN, Fox News Channel, Newsmax, and many others. She is author of "Red Flags" (St. Martin´s Press), and co-author of the revised version of the New York Times bestseller "Reading People" (Random House). On a personal note, Dr. Patrick holds a purple belt in Shorin-Ryu karate, is a concert violinist with the La Jolla Symphony, and plays the electric violin with a rock band. To read more of her reports — Click Here Now.

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Marijuana use? Because it's a drug enjoying a more peaceful reputation than many other illicit substances, the finding that it's linked to interpersonal violence requires us to re-examine the complicated relationship between personality traits, substance use, and domestic violence.
alcohol, aspd, ipv
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2018-15-08
Monday, 08 October 2018 04:15 PM
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