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1.
Addict Biol ; 29(2): e13368, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38380714

ABSTRACT

Neural measures of alcohol cue incentive salience have been associated with retrospective reports of riskier alcohol use behaviour and subjective response profiles. This study tested whether the P3 event-related potential (ERP) elicited by alcohol-related cues (ACR-P3) can forecast alcohol use and craving during real-world drinking episodes. Participants (N = 262; Mage = 19.53; 56% female) completed a laboratory task in which they viewed images of everyday objects (Neutral), non-alcohol drinks (NonAlc) and alcohol beverages (Alc) while EEG was recorded and then completed a 21-day ecological momentary assessment (EMA) protocol in which they recorded alcohol craving and consumption. Anthropometrics were used to derive estimated blood alcohol concentration (eBAC) throughout drinking episodes. Multilevel modelling indicated positive associations between P3 amplitudes elicited by all stimuli and within-episode alcohol use measures (e.g., eBAC, cumulative drinks). Focal follow-up analyses indicated a positive association between AlcP3 amplitude and eBAC within episodes: Larger AlcP3 was associated with a steeper rise in eBAC. This association was robust to controlling for the association between NonAlcP3 and eBAC. AlcP3 also was positively associated with episode-level measures (e.g., max drinks, max eBAC). There were no associations between any P3 variables and EMA-based craving measures. Thus, individual differences in neural measures of alcohol cue incentive salience appear to predict the speed and intensity of alcohol consumption but not reports of craving during real-world alcohol use episodes.


Subject(s)
Craving , Cues , Humans , Female , Young Adult , Adult , Male , Craving/physiology , Blood Alcohol Content , Event-Related Potentials, P300/physiology , Retrospective Studies , Ethanol , Alcohol Drinking
2.
Psychol Addict Behav ; 2023 Nov 30.
Article in English | MEDLINE | ID: mdl-38032623

ABSTRACT

OBJECTIVE: Lower sensitivity to the acute effects of alcohol is known to confer risk for the development of alcohol use disorder. Alcohol sensitivity, or level of response to alcohol's subjective effects, is heritable but also can change as a result of persistent alcohol exposure (i.e., acquired tolerance). Here, we examined how changes over time in four indices of alcohol involvement affected scores on two validated, retrospective self-report measures of alcohol response-the Self-Rating of the Effects of Alcohol (SRE) form and the Alcohol Sensitivity Questionnaire (ASQ)-in a sample of emerging adult drinkers. METHOD: Participants (N = 173; Mage = 19.5 years; 60% assigned female at birth) completed the ASQ, SRE, and measures of alcohol use and problems at two time points separated by a median of 0.77 years (range: 0.30-2.54 years). RESULTS: Multiple linear regression showed that increases in drinking over this period accounted for increases in SRE and ASQ scores (i.e., in reported numbers of drinks needed to experience subjective effects of alcohol). Increased drinking accounted for more variance in the number of drinks needed to experience lighter drinking versus heavier drinking effects, and increases in the number of drinks consumed per occasion had a larger effect than did changes in total numbers of drinks consumed, number of binge-drinking occasions, or drinking-related problems. CONCLUSIONS: Findings suggest that both SRE and ASQ capture some stable, trait-like variability in alcohol response as well as some state-dependent, within-person variability in alcohol response acquired through increases in alcohol involvement. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

3.
Exp Clin Psychopharmacol ; 31(1): 57-71, 2023 Feb.
Article in English | MEDLINE | ID: mdl-35025586

ABSTRACT

Effects of cue exposure and alcohol consumption (e.g., priming doses) on craving for alcohol have been examined in largely separate literature, limiting what is known about their potential interaction. Individuals with low alcohol sensitivity, a known risk factor for alcohol use disorder (AUD), exhibit stronger cue-elicited craving than their higher-sensitivity (HS) peers in both laboratory and real-world contexts. Here, underage drinkers (N = 155) completed a 21-day ecological momentary assessment (EMA) protocol in which they recorded exposure to alcohol cues and levels of craving during both nondrinking and postdrinking moments. Multilevel modeling detected a significant interaction of cue exposure and postdrinking status on craving. Cue-induced craving was increased in postdrinking moments compared to nondrinking moments. Contrary to prediction, cue-elicited increase in craving during nondrinking moments was stronger in participants reporting higher sensitivity to alcohol. In the presence of cues, lower sensitivity was robustly related to craving intensity in the postdrinking state but unrelated to craving during nondrinking moments. Craving during drinking episodes in the natural environment is magnified by the presence of alcohol cues, potentially contributing to the maintenance or acceleration of drinking episodes. Moreover, lower-sensitivity drinkers may be particularly susceptible to the combined effects of cue exposure and postdrinking status on alcohol craving. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Subject(s)
Alcoholism , Craving , Humans , Cues , Alcohol Drinking , Ethanol/pharmacology
4.
J Trauma Stress ; 35(5): 1381-1392, 2022 10.
Article in English | MEDLINE | ID: mdl-35470514

ABSTRACT

Residential posttraumatic stress disorder (PTSD) research in military samples generally shows that in aggregate, PTSD symptoms significantly improve over the course of treatment but can remain at elevated levels following treatment. Identifying individuals who respond to residential treatment versus those who do not, including those who worsen, is critical given the extensive resources required for such programs. This study examined predictors of treatment response among 282 male service members who received treatment in a U.S. Department of Defense residential PTSD program. Using established criteria, service members were classified as improved, indeterminate (referent), or worsened in terms of self-reported PTSD symptoms. Multinomial logistic regression results showed that for PTSD symptoms, higher levels of pretreatment PTSD symptom severity were associated with significantly lower odds of being in the improved group, adjusted odds ratio (aOR) = 0.955, p = .018. In addition, service members who completed treatment were significantly more likely to be in the improved group, aOR = 2.488, p = .048. Longer average pretreatment nightly sleep duration, aOR = 1.157, p = .035, and more severe pretreatment depressive symptoms, aOR = 1.109, p = .014, were associated with significantly higher odds of being in the improved group. These findings reveal clinical characteristics better suited for residential PTSD treatment and highlight implications for comorbid conditions.


Subject(s)
Military Personnel , Stress Disorders, Post-Traumatic , Veterans , Comorbidity , Humans , Male , Military Personnel/psychology , Residential Treatment , Self Report , Stress Disorders, Post-Traumatic/diagnosis , Stress Disorders, Post-Traumatic/epidemiology , Stress Disorders, Post-Traumatic/therapy , Veterans/psychology
5.
Pract Innov (Wash D C) ; 7(1): 40-52, 2022 Mar.
Article in English | MEDLINE | ID: mdl-35300049

ABSTRACT

As the demands of professional psychology can be taxing, psychotherapists are not immune to the development of mental health and substance use disorders. One estimate indicates that roughly 30-40% of psychologists know of a colleague with a current substance abuse problem (Good et al., 1995). 12-step mutual self-help groups, particularly Alcoholics Anonymous (AA), are the most widely used form of treatment for addiction in the United States. AA has empirically demonstrated effectiveness at fostering long-term treatment success, and is widely accessible throughout the world. However, psychotherapist participation in AA raises a number of ethical concerns, particularly regarding the potential for extra-therapy contact with clients and the development of multiple relationships. This article attempts to review the precarious ethical and practical situations that psychotherapists, either in long-term recovery or newly sober, may find themselves in during AA involvement. Moreover, this article provides suggestions for psychotherapists in AA regarding how to best adhere to both the principles of AA (i.e., the 12-steps and 12-traditions) and the American Psychological Association's Ethical Principles of Psychologists and Code of Conduct.

6.
Addiction ; 117(4): 892-904, 2022 04.
Article in English | MEDLINE | ID: mdl-34697852

ABSTRACT

AIMS: This study used a behavioral approach-avoidance task including images of alcoholic beverages to test whether low sensitivity to alcohol (LS) is a phenotypical marker of a dispositional propensity to attribute bottom-up incentive value to naturally conditioned alcohol cues. DESIGN, SETTING AND PARTICIPANTS: Experimental study with a measured individual difference variable at a university psychology laboratory in Missouri, MO, USA. Participants were 178 emerging adults (aged 18-20 years) varying in self-reported sensitivity to alcohol's acute effects. MEASUREMENTS: Participants completed the alcohol approach-avoidance task while behavior (response time; RT) and the electroencephalogram (EEG) were recorded. Stimulus-locked event-related potentials (ERPs) provided indices of integrated (top-down and bottom-up) stimulus incentive value (P3 amplitude) and conflict between top-down task demands and bottom-up response propensities (N450 amplitude). FINDINGS: Linear mixed models showed faster RT for 'alcohol-approach' relative to 'alcohol-avoid' trials for lower-sensitivity (LS) [meanD ± standard errorD (MD ± SED ) = 29.51 ± 9.74 ms, t(328) = 3.03, P = 0.003] but not higher-sensitivity (HS) individuals (MD ± SED = 2.27 ± 9.33 ms, t(328) = 0.243, P = 0.808). There was enhanced N450 amplitude (response conflict) for alcohol-avoid relative to alcohol-approach trials for LS participants (MD ± SED = 0.811 ± 0.198 µV, Z = 4.108, P < 0.001) and enhanced N450 amplitude for alcohol-approach relative to alcohol-avoid for HS participants (MD ± SED = 0.419 ± 0.188 µV, Z = 2.235, P = 0.025). There was also enhanced P3 amplitude for alcohol-approach relative to alcohol-avoid for LS (MD ± SED = 0.825 ± 0.204 µV, Z = 4.045, P < 0.001) but not HS (MD ± SED = 0.013 ± 0.194 µV, Z = 0.068, P = 0.946). CONCLUSIONS: Findings from a human laboratory study appear to support the notion that low sensitivity to alcohol indexes a propensity to attribute bottom-up incentive value to naturally conditioned alcohol cues.


Subject(s)
Cues , Motivation , Adult , Alcohol Drinking/psychology , Brain , Ethanol , Evoked Potentials/physiology , Humans
7.
J Trauma Stress ; 34(3): 551-562, 2021 06.
Article in English | MEDLINE | ID: mdl-33513298

ABSTRACT

Research on residential posttraumatic stress disorder (PTSD) treatment has predominantly focused on the U.S. veteran population, whereas limited research exists regarding active duty service members. The present study evaluated outcomes among service members who received treatment in the Department of Defense's only residential PTSD program, Overcoming Adversity and Stress Injury Support (OASIS). Over a 5-year period, 289 male service members with combat-related PTSD received treatment in the program. Service members completed an initial assessment and weekly PTSD and depression self-report measures during the 10-week program. Multilevel modeling results demonstrated statistically significant reductions in PTSD. On average, participants reported a 0.76-point reduction on the PTSD Checklist, B = -0.76, p < .001, for each additional week of treatment. Pretreatment symptom scores and fitness-for-duty status predicted PTSD symptoms across time. Weekly changes in depression symptoms were not statistically significant; however, a significant Time × Pretreatment Depression Severity interaction emerged. Service members with higher baseline levels of depression severity showed larger reductions in depression symptom severity than those with lower levels, B = -0.02, p = .020, although a sizeable minority continued to retain symptoms at diagnostic levels. Depression symptom change was not related to any other treatment- or service-related variables. Differing trajectories were found between service members whose symptoms improved over the course of residential treatment and those who did not. The results indicate that there were larger improvements in PTSD than depression symptoms and highlight the need to optimize care provision for service members with severe PTSD or comorbid symptoms.


Subject(s)
Combat Disorders , Military Personnel , Stress Disorders, Post-Traumatic , Veterans , Humans , Male , Residential Treatment , Stress Disorders, Post-Traumatic/therapy
8.
Neuropsychologia ; 106: 298-309, 2017 Nov.
Article in English | MEDLINE | ID: mdl-28986268

ABSTRACT

The temporo-occipitally distributed N170 ERP component is hypothesized to reflect print-tuning in skilled readers. This study investigated whether skilled deaf and hearing readers (matched on reading ability, but not phonological awareness) exhibit similar N170 patterns, given their distinct experiences learning to read. Thirty-two deaf and 32 hearing adults viewed words and symbol strings in a familiarity judgment task. In the N170 epoch (120-240ms) hearing readers produced greater negativity for words than symbols at left hemisphere (LH) temporo-parietal and occipital sites, while deaf readers only showed this asymmetry at occipital sites. Linear mixed effects regression was used to examine the influence of continuous measures of reading, spelling, and phonological skills on the N170 (120-240ms). For deaf readers, better reading ability was associated with a larger N170 over the right hemisphere (RH), but for hearing readers better reading ability was associated with a smaller RH N170. Better spelling ability was related to larger occipital N170s in deaf readers, but this relationship was weak in hearing readers. Better phonological awareness was associated with smaller N170s in the LH for hearing readers, but this association was weaker and in the RH for deaf readers. The results support the phonological mapping hypothesis for a left-lateralized temporo-parietal N170 in hearing readers and indicate that skilled reading is characterized by distinct patterns of neural tuning to print in deaf and hearing adults.


Subject(s)
Brain/physiopathology , Deafness/physiopathology , Evoked Potentials , Reading , Adolescent , Adult , Comprehension , Electroencephalography , Female , Functional Laterality , Hearing , Humans , Male , Middle Aged , Persons With Hearing Impairments , Phonetics , Young Adult
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