Paul R. Stasiewicz

Trauma-focused imaginal exposure for individuals with comorbid posttraumatic stress disorder and alcohol dependence: revealing mechanisms of alcohol craving in a cue reactivity paradigm.

With a sample (N = 43) of participants meeting current diagnostic criteria for both alcohol dependence and posttraumatic stress disorder (PTSD), the authors tested the hypothesis that alcohol craving elicited by a trauma cue might be attenuated if trauma-elicited negative emotion were reduced following trauma-focused imaginal exposure. In a laboratory-based experiment, participants were randomly assigned to either trauma-focused imaginal exposure or imagery-based relaxation. A cue reactivity paradigm was used to assess alcohol craving prior to, and after completion of, the 6 clinical sessions. Attrition was high but did not differ between experimental conditions. For study completers, PTSD symptoms decreased in the exposure condition but not in the relaxation condition. Alcohol craving and distress elicited by trauma images decreased in the exposure condition but did not change in the relaxation condition. Results support the hypothesis that negative emotion is a mechanism of alcohol craving.

Two-factor avoidance theory: The role of negative affect in the maintenance of substance use and substance use disorder

A brief overview of several current models describing the influence of negative affect in substance use disorders is provided. We then review in detail one set of models, drug conditioning models, that have provided the theoretical underpinnings for cue exposure research. Although the models may differ, one explanation, common to several models, is that negative affective states serve as conditioned stimuli (CS) that are capable of eliciting conditioned drug responses (CRs). These conditioned responses are assumed to provide the motivation to engage in substance use. In this paper we present the two-factor theory of emotional conditioning and avoidance learning, and then use this model to extend existing drug conditioning frameworks. This extension implies that cue exposure treatment should go further than extinction of conditioned drug responses only and should include exposure to the conditioned stimuli associated with past aversive conditioning experiences. Implications for treatment and research of the substance use disorders are discussed.

A comparison of three "interventions" on pretreatment dropout rates in an outpatient substance abuse clinic.

Studies examining pretreatment dropout in outpatient substance abuse clinics have consistently demonstrated that fewer days between phone contact and scheduled intake appointment result in higher client show rates. To compare time to intake with two other interventions hypothesized to increase show rates, individuals (N = 128) seeking treatment were randomly assigned to one of four groups. Individuals in Group 1 were scheduled within 48 hours of the telephone intake. Individuals in Groups 2, 3, and 4 were scheduled 48 hours or more after the telephone intake and received either a reminder call 24 hours prior to their appointment (Group 2), an appointment card and clinic brochure in the mail (Group 3), or no intervention (Group 4). The results show that Group 1 had a higher show rate as compared to the other three groups, and receiving a reminder call or an appointment card did not improve show rates beyond that of the no-contact control group. Implications for intake procedures are discussed.

The relationship of alexithymia to emotional dysregulation within an alcohol dependent treatment sample.

Difficulties regulating emotions have implications for the development, maintenance, and recovery from alcohol problems. One construct thought to impede the regulation of emotion is alexithymia. Alexithymia is characterized by difficulties identifying, differentiating and expressing feelings, a limited imagination and fantasy life, and an externally-oriented thinking style (e.g., prefer talking about daily activities rather than feelings). Given that poor emotion regulation skills have been found to predict posttreatment levels of alcohol use, and that several defining characteristics of alexithymia bear similarity to deficits in emotion regulation skills, it is possible that alexithymia may predict poorer alcohol treatment outcomes. Thus, the present study first examined the relationship of alexithymia to several other emotion regulation measures and then investigated the impact of alexithymia on attrition and alcohol treatment outcomes in men and women (N=77) enrolled in a 12-week cognitive-behavioral intervention for alcohol dependence. At baseline, higher scores on alexithymia were associated poorer emotion regulation skills, fewer percent days abstinent, greater alcohol dependence severity, and several high-risk drinking situations. Alexithymia was unrelated to attrition and to level of alcohol consumption at posttreatment. Overall, the construct of alexithymia is shown to be related to several theoretically-related constructs (e.g., emotion regulation, mindfulness) but demonstrated a limited relationship to drinking outcomes in those seeking treatment for alcohol dependence.

Affect regulation training (ART) for alcohol use disorders: Development of a novel intervention for negative affect drinkers

Although negative affect is a common precipitant of alcohol relapse, there are few interventions for alcohol dependence that specifically target negative affect. In this stage 1a/1b treatment development study, several affect regulation strategies (e.g., mindfulness, prolonged exposure, distress tolerance) were combined to create a new treatment supplement called affect regulation training (ART), which could be added to enhance cognitive-behavioral therapy (CBT) for alcohol dependence. A draft therapy manual was given to therapists and treatment experts before being administered to several patients who also provided input. After two rounds of manual development (stage 1a), a pilot randomized clinical trial (N=77) of alcohol-dependent outpatients who reported drinking often in negative affect situations was conducted (stage 1b). Participants received 12-weekly, 90-minute sessions of either CBT for alcohol dependence plus ART (CBT+ART) or CBT plus a healthy lifestyles control condition (CBT+HLS). Baseline, end-of-treatment, and 3- and 6-month posttreatment interviews were conducted. For both treatment conditions, participant ratings of treatment satisfaction were high, with CBT+ART rated significantly higher. Drinking outcome results indicated greater reductions in alcohol use for CBT+ART when compared to CBT+HLS, with moderate effect sizes for percent days abstinent, drinks per day, drinks per drinking day, and percent heavy drinking days. Overall, findings support further research on affect regulation interventions for negative affect drinkers.

Craving and physiological reactivity to trauma and alcohol cues in posttraumatic stress disorder and alcohol dependence.

The high comorbidity of posttraumatic stress disorder (PTSD) and alcohol dependence (AD) has been firmly established. Although laboratory studies have examined self-reported craving in response to trauma and alcohol cues, no studies have reported on alcohol-related physiological responding in response to trauma cues in PTSD-AD individuals. Using a cue reactivity paradigm, this study examined the impact of personalized trauma-image cues and in vivo alcohol cues on alcohol-related responding (e.g., salivation, craving) in individuals with PTSD and AD (n = 40). Participants displayed reactivity to both trauma and alcohol cues when compared to neutral cues, including increased self-reported craving and distress, as well as greater salivation. These findings suggest that through repeated pairings of trauma memories and alcohol consumption, salivation may become classically conditioned to trauma cues. Moreover, the fact that the trauma-alcohol cue combination elicited greater alcohol craving, salivary responding, distress, and arousal than either the trauma-neutral or neutral-alcohol cue combinations suggests that effects of the trauma and alcohol cues were additive in nature. Evidence that AD individuals with PTSD report increased alcohol craving and display greater salivation in response to trauma memories, supplements prior research indicating that PTSD-related negative emotion and trauma-related alcohol craving may play an important role in the maintenance of AD.

Gender differences in high-risk situations for drinking: Are they mediated by depressive symptoms?

OBJECTIVE The purpose of the present study was to examine gender differences in the frequency of high-risk drinking situations and to investigate the extent to which depressive symptoms mediate the relationship. METHOD Participants were 143 outpatient alcohol treatment seekers. Each participant completed the Beck Depression Inventory-II and Inventory of Drug-Taking Situations (IDTS) at baseline prior to treatment. RESULTS Multivariate analysis of variance was used to examine gender differences in drinking across eight categories of situations assessed on the IDTS. Mediational analyses tested whether gender differences on these IDTS subscales may be mediated by depressive symptoms. We found support for the hypothesis that women report drinking more than men in response to unpleasant emotions and conflict with others, and that these associations are significantly mediated by depression severity. CONCLUSIONS The current findings have important implications for appropriate treatment for alcohol-dependent women. In particular, such treatment should include training in affect regulation and interpersonal skills, as well as treatment for depression, when appropriate.

Symptom Severity, Alcohol Craving, and Age of Trauma Onset in Childhood and Adolescent Trauma Survivors with Comorbid Alcohol Dependence and Posttraumatic Stress Disorder

Posttraumatic stress disorder (PTSD) and alcohol dependence (AD) are frequently comorbid disorders. Given evidence that childhood traumas may be associated with broader, more severe psychological sequelae than later traumas, the present study examined whether the association between alcohol and trauma symptomatology is more pronounced among individuals with earlier trauma onsets in a sample of 42 childhood and adolescent trauma survivors diagnosed with comorbid AD-PTSD. As predicted, individuals reporting childhood traumas reported greater severity of trauma and alcohol symptoms and greater alcohol craving. These results suggest that individuals with childhood trauma histories may be particularly vulnerable to relapse following AD treatment.

Effects of extinction context and retrieval cues on renewal of alcohol-cue reactivity among alcohol-dependent outpatients

Pavlovian conditioning models have led to cue-exposure treatments for drug abuse. However, conditioned responding to drug stimuli can return (be renewed) following treatment. Animal research and a previous study of social drinkers indicated that extinction is highly context dependent but that renewal could be reduced by the inclusion of a cue from the extinction context. This study extends this research to a clinical sample. Alcohol-dependent outpatients (N = 143) completed an extinction trial to reduce craving and salivation responses to alcohol cues. They were then randomized to renewal tests in either the same context as extinction, a different context, the different context containing an extinction cue, or the different context with cue plus a manipulation to increase the salience of the cue. Contrary to predictions, the different context did not produce the expected renewal effect. Although the generalization of extinction effects beyond the cue-exposure context is a positive clinical finding, it is inconsistent with basic research findings on the context dependence of extinction. Possible explanations for this inconsistency are discussed.

Qualitative analysis of high-risk drug and alcohol use situations among severely mentally ill substance abusers

Situational factors have been found to influence relapse to alcohol and drug use in general samples of substance abusers. However, little research exists examining the influence of interpersonal and intrapersonal determinants in samples of individuals dually diagnosed with a severe mental illness (SMI) and a substance use disorder (SUD). This study assessed high-risk alcohol and drug use situations in dually diagnosed individuals using focus group methodology. Qualitative data analysis yielded 10 themes that encompassed 33 high-risk situations: Psychological symptoms, positive and negative affect, reminders of substance use, being around people who use drugs and alcohol, interpersonal conflict, offers of drugs or alcohol, experiencing loss, receiving money, loss of appetite, and being abstinent. These results suggest that individuals with an SMI and SUD experience a number of unique high-risk situations that differ from those reported by non-SMI substance abusers. This study provides the basis for future quantitative studies assessing the prevalence of these situations in representative samples of SMI alcohol and drug abusers. This information allows for the development of relapse assessment instruments and treatment strategies appropriate for this population.