Gender, alcohol consumption, and differing alcohol expectancy dimensions in college drinkers

Consequences, Motives, and Expectancies of Consumption as Predictors of Binge Drinking in University Women

The increasing presence of women, especially university women, in risky alcohol consumption such as Binge Drinking (BD), which is associated with gender-specific biopsychosocial problems, makes it necessary to analyze the variables underlying BD in order to adjust possible interventions more in line with their reality. The motives and expectancies of this pattern of consumption, as well as the consequences derived from it, are some of the variables that are shown to have the greatest weight in the prediction of BD. In the present study we analyze, on the one hand, the performance of these variables among college women with alcohol use, and on the other hand, which of these variables allow us to classify BD. A total of 501 female university consumers of alcohol (mean age 19.02 years) were assessed. Specifically, they completed a self-report of alcohol consumption (77.1% engage in BD), the Expectancy Questionnaire (EQ), the Drinking Motives Questionnaire (DMQ-R) and the Alcohol Consumption Consequences Evaluation (ACCE). BD female students scored significantly higher on these instruments, except for compliance motives. The logistic regression analysis carried out to estimate the probability of performing BD using the social and conformity motives, the ACCE and positive expectancies correctly estimated (χ2 8 = 9.149, p < 0.33) 88.6% of the cases and explained 26.2% of the BD. Thus, young women with a level of consequences classified as high risk (>25 in ACCE) have a 3.55-fold increase in the probability of having BD, compared to women classified as low risk by the ACCE. On the other hand, women classified as moderate risk by the ACCE have a 4.77-fold increase in the probability of having BD. In the case of social motives and positive expectancies, their increase multiplies by 1.165 and 1.024, respectively, the probability of having BD. The results of this study highlight the importance of adapting preventive measures to the consequences experienced by BD university students, especially in relation to the social motives and positive expectancies that modulate decision-making when engaging in this pattern of consumption.

Correlates and Effects of Alcohol Use Expectancies Among Persons Living with HIV in Uganda

Unhealthy alcohol use fuels difficulties with HIV disease management and potentiates secondary transmission of HIV but less is known about how these alcohol use expectancies may shape alcohol use behaviors, particularly in the presence of depressive symptomatology. In this paper, we utilize data from a prospective study of 208 people living with HIV in Southwest Uganda, to examine the correlates of alcohol use expectancies and their association with unhealthy alcohol use. Affective depressive symptoms were positively associated with alcohol use expectancies. Gender moderation was observed such that depression was more strongly associated with alcohol use expectancies among women. In unadjusted analyses, alcohol use expectancies were marginally associated with unhealthy alcohol use and this association was not significant in adjusted analyses. Findings underscore the need to strengthen screening for depression and alcohol use within HIV care services, particularly among women.

Dietary self-monitoring is associated with increased likelihood of problematic alcohol use among college students

Objective: To assess the relationship between dietary self-monitoring and problematic alcohol use including binge drinking, increased body confidence while drinking, and restricting food intake to compensate for alcohol consumption, among college students. Participants: Undergraduate and graduate students from 12 US colleges participating in the Healthy Bodies Study in 2013-2014 and 2014-2015 school years (n = 10,133). Methods: Weighted prevalence was calculated for dietary self-monitoring and problematic alcohol use. Gender-stratified logistic regressions were used to assess relationships. Results: Knowing nutrition facts was associated with restricting to compensate for alcohol consumption among women (OR = 2.42, p < .0001) and men (OR = 1.64, p = .002). Among women, knowing and counting calories predicted all problematic alcohol use behaviors. Among men, knowing calories was associated with restricting to compensate (OR = 2.69, p < .0001) and counting calories was associated with restricting to compensate (OR = 5.10, p < .0001) and increased body confidence while drinking (OR = 2.25, p < .0001). Conclusions: Dietary self-monitoring predicts problematic alcohol use among college students, particularly women.

Effects of within- and between-person assessments of alcohol expectancies and valuations on use and consequences moderated by sex

BACKGROUND

Alcohol expectancies (AE; beliefs about the likelihood of outcomes) and valuations (beliefs about the desirability of outcomes) may help explain alcohol use by young adults. However, it remains unclear how variability in AE and valuations over time are related to alcohol-related outcomes, and whether these associations are moderated by sex. The current study addressed these gaps in knowledge by examining within-person variability among positive and negative AEs, valuations, and alcohol-related outcomes over a 12-month period.

METHODS

Data were collected from 433 college students (M_age  = 20.06; 59.81% women) who completed surveys at 4 timepoints: at baseline and 3-month, 6-month, and 12-month follow-up.

RESULTS

We found substantial within-person variability in both AE and valuations (intraclass correlation coefficients ranged from 50% to 66%), and differences in variability by sex, with women showing more variability than men. Multilevel models revealed that weekly drinking was significantly higher at timepoints in which participants held relatively greater AE for sociability, sexuality, and risk/aggression, but lower when participants expected greater effects on self-perception. Weekly drinking was also higher when participants reported more favorable valuation of risk/aggression. Participants experienced significantly more negative consequences at timepoints in which they held relatively greater AE for sexuality and self-perception. No AEs were associated with a reduced likelihood of negative consequences. Participants experienced more negative consequences at timepoints in which they reported more favorable valuation of self-perception No valuations were associated with fewer consequences. Several between- and within-person associations were moderated by sex.

CONCLUSIONS

These findings suggest that AE and valuations are dynamic, that young adults' beliefs about the effects of alcohol varied over time, and that both negative and positive AE and valuations may be important correlates of alcohol use and consequences. These findings have implications for interventions designed to challenge expectancies and valuations with the goal of reducing alcohol use and associated consequences.

Context Matters for the Socially Anxious: Moderating Role of Drinking Context on Alcohol Outcome Expectancies

Background: Moderating effects of alcohol outcome expectancies (AOE) on the social anxiety (SA)-alcohol misuse relationship are mixed. This may be explained by differential relationships between SA and context-specific AOE. Gender may further moderate these associations, as it influences SA, AOE, and drinking behaviors. Objectives: To examine the moderating role of drinking context (i.e. convivial, negative coping, or personal-intimate) and gender on the relationships between SA and three AOE (i.e. tension reduction, sociability, and sexuality). Methods: Participants (n = 436, M_age=19.32, 72% female, 85.8% White) were 218 undergraduates with elevated SA (high SA group) and a gender-matched low SA group (n = 218) drawn from a larger undergraduate sample (N = 1,015). Participants completed three versions of an AOE measure, differing by drinking context considered. Results: A significant SA group x context x gender interaction was found for tension reduction AOE; compared to men, women in the low SA group reported greater tension reduction AOE in negative coping contexts. Significant SA group and context main effects suggest that sociability and sexuality AOE are endorsed more in the high (vs. low) SA group, and in convivial and personal-intimate compared to negative coping contexts. Conclusions/Importance: Tension reduction AOE vary depending on the drinking context, SA, and gender. Assessment of AOE in specific drinking contexts may help to identify which individuals may be at greatest risk for alcohol misuse and help inform treatment of SA-related problem drinking.

Alcohol expectancies pre-and post-alcohol use disorder treatment: Clinical implications

BACKGROUND AND AIMS

Modification of elevated positive expectations of alcohol consumption (alcohol outcome expectancies; AOEs) is a key feature of Cognitive Behaviour Therapy (CBT) approaches to Alcohol Use Disorders (AUDs). Despite extensive research supporting the efficacy of CBT for AUD, few studies have examined AOE change. This study aimed to assess AOE change following completion of CBT for AUD and its association with drinking behaviour.

METHOD

One-hundred and seventy-five patients who completed a 12-week CBT program for AUD were administered the Drinking Expectancy Questionnaire (DEQ) at pre-treatment assessment and upon completion of treatment. Abstinence was achieved by 108 (61.7%) of completing patients. For patients who lapsed, the mean proportion of abstinent days was 93%.

RESULTS

DEQ scales assessing expectations of positive alcohol effects on tension reduction, assertiveness, and cognitive enhancement were significantly lower post-treatment (p<0.001). Expectations of negative effects on mood were higher post-treatment (p<0.001). The largest AOE change occurred on the tension reduction scale. Greater percentage of abstinent days over treatment was associated with lower pre-and post-treatment tension reduction expectancy scores (p<0.05). Drinking during treatment was associated with smaller changes in expectations of negative effects of alcohol on mood (p<0.05).

CONCLUSIONS

Individuals who completed CBT treatment for AUD showed significant AOE change. Tension reduction and affective change expectancies may be particularly important for abstinence and useful markers of lapse risk.

Trends in alcohol use among young people according to the pattern of consumption on starting university: A 9-year follow-up study

AIM

To identify differences in Risky Consumption (RC) and Binge drinking (BD) trends in students who already followed these patterns of alcohol consumption on starting university and those who did not, and also to try to understand what leads students to engage in these types of behaviour at university.

MATERIAL AND METHODS

Cohort study among university students in Spain (n = 1382). BD and RC were measured with the Alcohol Use Disorders Identification Test at ages 18, 20, 22, 24 and 27 years. Multilevel logistic regression for repeated measures was used to calculate the adjusted Odds Ratios (ORs).

RESULTS

The prevalence rates of RC and BD were lower throughout the study in students who did not follow these patterns of consumption at age 18. For RC and BD, the differences at age 27 years, expressed as percentage points (pp), were respectively 24 pp and 15 pp in women and 29 pp and 25 pp in men. Early age of onset of alcohol use increased the risk of engaging in RC and BD patterns at university, for men (OR = 2.91 & 2.80) and women (OR = 8.14 & 5.53). The same was observed in students living away from the parental home for BD (OR = 3.43 for men & 1.77 for women). Only women were influenced by having positive expectancies for engaging in RC (OR = 1.82) and BD (OR = 1.96).

CONCLUSIONS

The prevalence rates of both RC and BD at age 27 years were much higher among university students who already followed these patterns of consumption at age 18 years, with the differences being proportionally higher among women. Focusing on the age of onset of alcohol consumption and hindering access to alcohol by minors should be priority objectives aimed at preventing students from engaging in these patterns of alcohol consumption at university.

Acute alcohol effects on facial expressions of emotions in social drinkers: a systematic review

Background

As known from everyday experience and experimental research, alcohol modulates emotions. Particularly regarding social interaction, the effects of alcohol on the facial expression of emotion might be of relevance. However, these effects have not been systematically studied. We performed a systematic review on acute alcohol effects on social drinkers' facial expressions of induced positive and negative emotions.

Materials and methods

With a predefined algorithm, we searched three electronic databases (PubMed, PsycInfo, and Web of Science) for studies conducted on social drinkers that used acute alcohol administration, emotion induction, and standardized methods to record facial expressions. We excluded those studies that failed common quality standards, and finally selected 13 investigations for this review.

Results

Overall, alcohol exerted effects on facial expressions of emotions in social drinkers. These effects were not generally disinhibiting, but varied depending on the valence of emotion and on social interaction. Being consumed within social groups, alcohol mostly influenced facial expressions of emotions in a socially desirable way, thus underscoring the view of alcohol as social lubricant. However, methodical differences regarding alcohol administration between the studies complicated comparability.

Conclusion

Our review highlighted the relevance of emotional valence and social-context factors for acute alcohol effects on social drinkers' facial expressions of emotions. Future research should investigate how these alcohol effects influence the development of problematic drinking behavior in social drinkers.

Alcohol Expectancy, Drinking Behavior, and Sexual Victimization Among Female and Male College Students

College students have high rates of heavy drinking, and this dangerous behavior is strongly linked to sexual victimization. Although research has examined risk factors for sexual assault, few studies have simultaneously studied the various pathways through which risks may affect sexual assault and how these pathways may be uniquely different among females and males. As such, the current study uses path analyses to examine whether alcohol expectancies mediate the relationship between social factors (e.g., hooking up, amount friends drink) and drinking behavior and experiencing sexual victimization, and whether drinking behavior mediates the relationship between alcohol expectancies and sexual victimization among a college sample of 704 males and females from a large Midwestern university. For both females and males, sexual victimization was positively associated with child sexual abuse, hooking up more often, and heavier drinking, whereas greater alcohol expectancies were associated with sexual victimization only for females. Several mediating pathways were found for both females and males. Gender comparisons revealed that some of the pathways to sexual victimization such as hooking up, amount friends drink, and housing type operated differently for females and males.

Long-term ethanol self-administration induces ΔFosB in male and female adolescent, but not in adult, Wistar rats

Early-onset ethanol consumption predicts later development of alcohol use disorders. Age-related differences in reactivity to ethanol's effects may underlie this effect. Adolescent rats are more sensitive and less sensitive than adults to the appetitive and aversive behavioral effects of ethanol, respectively, and more sensitive to the neurotoxic effects of experimenter-administered binge doses of ethanol. However, less is known about age-related differences in the neural consequences of self-administered ethanol. ΔFosB is a transcription factor that accumulates after chronic drug exposure and serves as a molecular marker of neural plasticity associated with the transition to addiction. We analyzed the impact of chronic (18 two-bottle choice intake sessions spread across 42days, session length: 18h) ethanol [or only vehicle (control group)] self-administration during adolescence or adulthood on the induction of ΔFosB in several brain areas, anxiety-like behavior, and ethanol-induced locomotor activity and conditioned place preference (CPP) in Wistar rats. Adolescent rats exhibited a progressive escalation of ethanol intake and preference, whereas adult rats exhibited a stable pattern of ingestion. Few behavioral differences in the open field or light-dark test were observed after the intake test. Furthermore, ethanol self-administration did not promote the expression of ethanol-induced CPP. There were, however, large age-related differences in the neural consequences of ethanol drinking: a significantly greater number of ethanol-induced ΔFosB-positive cells was found in adolescents vs. adults in the prelimbic cortex, dorsolateral striatum, nucleus accumbens core and shell, and central amygdala nucleus capsular and basolateral amygdala, with sex-related differences found at central amygdala. This greater ethanol-induced ΔFosB induction may represent yet another age-related difference in the sensitivity to ethanol that may put adolescents at higher risk for problematic ethanol use.

Edad de inicio en el consumo, motivos y cantidad de alcohol en la determinación de consecuencias en consumidores intensivos universitarios

Las implicaciones clínicas y sociales derivadas del consumo intensivo de alcohol (CIA) en universitarios motivan la necesidad de analizar los factores que favorecen su aparición. Este estudio evalúa cómo influye la cantidad de alcohol ingerido, la edad de inicio en el consumo de esta sustancia y los motivos asociados a esta conducta en la presencia de un mayor o menor número de consecuencias psicosociales. 312 estudiantes de primero de la Universidad de Valencia que realizan CIA cumplimentaron el instrumento IECI (Cortés et al., 2012): autoregistro de consumo, motivos asociados a esta ingesta y consecuencias psicosociales derivadas. Se confirman resultados de investigaciones precedentes. Ambos sexos duplican los gramos de alcohol que definen un CIA. Aparecen diferencias en los efectos esperados en función del sexo, así como en la edad de inicio en el consumo y en el número de consecuencias experimentadas. Los análisis de regresión de orden jerárquico muestran la importancia de la edad de inicio y los motivos, por encima de los gramos consumidos, para dar cuenta del deterioro psicosocial generado por la ingesta. Esto apoya la necesidad de atender a la combinación de variables en la explicación y posterior intervención para paliar las consecuencias derivadas del CIA.

Sex-dependent consequences of pre-pubertal gonadectomy: Social behavior, stress and ethanol responsivity

Alcohol consumption can be enhanced or moderated by sensitivity to its aversive and appetitive properties, including positive social outcomes. These differences emerge post-pubertally, suggesting a potential role of gonadal hormones. To determine the role of gonadal hormones in sensitivity to the social impairing and social context-related attenuations in the aversive effects of ethanol, prepubertal male and female rats were gonadectomized (GX) or sham (SH) operated on postnatal day (P) 25, or left non-manipulated (NM). In adulthood (P70), rats were restrained for 90 min prior to challenge with 0.0 or 1.0 g/kg ethanol and social interaction (SI) testing. At P77, groups of 4 same-sex littermates from the same surgical condition were given access to a supersaccharin (SS) solution (3% sucrose, 0.125% saccharin), followed by an intraperitoneal injection of ethanol (0.0, 0.50, 1.0, 1.5 g/kg). Intakes of SS were examined 24h later for expression of conditioned taste aversions. Acute stress prior to SI testing increased frequency of play fighting in both sexes, whereas there were no GX effects on this measure, social investigation nor contact. GX, however, decreased baseline social preference (a social anxiety-like effect) in males, while inducing anxiolytic-like increases in baseline social preference in females. The social drinking test revealed that females developed ethanol conditioned taste aversions at a lower dose relative to males, regardless of surgical condition. These findings suggest a potential role for gonadal hormones in moderating social-anxiety like behaviors but not sensitivity to the social impairing effects of ethanol or ethanol's aversive consequences in a social context.

The moderating effect of gender on the relation between expectancies and gambling frequency among college students

Compared to college females, college males are more likely to report frequent gambling. Research on gambling outcome expectancies has shown that expectations about gambling influence gambling behavior and that endorsement of particular expectancies differs by gender. Knowledge regarding the differential predictive utility of specific gambling expectancies based on gender would help to determine how beliefs about gambling may be fundamentally different for men and women. The present study explored whether gender moderates the relation between gambling expectancy and gambling frequency in a college sample. 421 college students completed an online survey that included questions about their demographics, gambling frequency, and gambling expectancies. Hierarchical regression analyses indicated that gender moderated the relations between the expectancies of social consequences, material gain, and gambling frequency. For females, greater endorsement of social consequences predicted less frequent gambling. For both males and females, greater endorsement of material gain predicted more frequent gambling. The current findings can help inform prevention and intervention efforts by identifying gambling expectations that are differentially related to college student gambling behavior choices.

Psychosocial Correlates of AUDIT-C Hazardous Drinking Risk Status: Implications for Screening and Brief Intervention in College Settings

The current study identified psychosocial variables associated with AUDIT-C hazardous drinking risk status for male and female college students. Logistic regression analysis revealed that AUDIT-C risk status was associated with alcohol-related negative consequences, injunctive norms, and descriptive norms for both male and female participants. Sociability and self-perception outcome expectancies predicted risk status for females. Cognitive and behavioral impairment expectancies predicted risk status for men in the sample. Implications for screening and brief intervention programming efforts are discussed.

Personality and Alcohol Expectancies Discriminate Alcohol Consumption Patterns in Female College Students

AIMS

To characterize patterns of alcohol use in a sample of Argentinean female college students according to personality traits and alcohol expectancies.

METHODS

Data from 298 female college students (M age = 18.27 years; SD = 1.37 years) from the city of Cordoba, Argentina were analysed using multinomial regression.

RESULTS

Three drinking categories were identified, abstainers, moderate drinkers and regular drinkers with heavy episodic drinking, and these were differentiated by three personality traits [extraversion, disinhibition (DIS) and experience seeking (ES)] and three alcohol expectancies dimensions (sociability, risk/aggression and negative mood). Regular drinkers with heavy episodic drinking and moderate drinkers had, compared to abstainers, higher scores in extroversion and alcohol expectancies for social facilitation, and lower scores in alcohol expectancies for risk and aggression. Regular drinkers with heavy episodic drinking exhibited, compared to moderate drinkers, higher scores in ES, DIS, extroversion, alcohol expectancies for social facilitation and negative mood alcohol expectancies; as well as lower scores in risk and aggression alcohol expectancies.

CONCLUSION

College women in Argentina with problematic alcohol drinking can be distinguished from those drinking moderately.

Uso de álcool e expectativas do beber entre universitários: uma análise das diferenças entre os sexos

O estudo analisou comparativamente o consumo de álcool e expectativas do beber de homens e mulheres, verificando a relação entre as variáveis. Contou-se com uma amostra de 238 universitários, que responderam aos instrumentos AUDIT e AEQ-A. Homens apresentaram prevalência significativamente maior de uso de álcool no ano, uso problemático e binge. Expectativas de transformações globais positivas e de melhora no desempenho sexual foram maiores entre os homens. Houve correlação positiva entre expectativas e a gravidade de problemas associados ao consumo de álcool para ambos os sexos, no entanto, essa relação foi significativa apenas para os homens. Resultados indicam que diferenças das expectativas do beber entre os sexos podem ter um importante papel em ações de prevenção mais precisas e eficazes sobre o uso de álcool de homens e mulheres.

Alcohol expectancy responses from teenagers: the early forewarning signals

BACKGROUND

The Indian population is overwhelmed by the rapid developmental activities in the new millennium. This has brought in urbanization and several banes of the faster life. Alcoholism is one among the menaces which have to be tackled at an early stage.

OBJECTIVE

To assess the subjective expectancies from alcohol intake in young college students.

METHODS

We carried out a survey on the expectancy from youth of the alcohol effects, which in fact is known as the principal motivator of alcohol intake. We chose the pre-university students (n= 200; 100 males and 100 females) of one of the oldest and prestigious colleges of Mangalore (south India). The survey used the Comprehensive Effect of Alcohol (CEOA) where the students had to respond to two sets of 38 questions, in which they would mention whether they agreed or disagreed to the statement regarding the effects of alcohol intake.

RESULTS

From the results, we found that these young students were in agreement of the view that alcohol could cause a positive reinforcement. They also strongly agreed that alcohol consumption could cause negative effects. This was significantly more pronounced among the girls. Strikingly, only 25% of the boys and 14.5% of girls had consumed alcohol before, who indicated a stronger positive reinforce response as compared to those who had not tasted alcohol.

CONCLUSIONS

The results reveal that the first exposure to alcohol consumption is the key factor which leads to alcoholism. If the experience of alcohol intake and the effects of alcohol are liked with the subjects, that becomes a motivating factor for future attempts. This needs a closer look by the clinicians, counselors and the parents, who need to actively interfere in educating the youth and in guiding them in the right direction during their formative ages.

A critical systematic review of alcohol-related outcome expectancies

To assess the validity of the research into alcohol-related outcome expectancies a systematic review of 80 articles published between 1970 and 2013 was conducted. Participant gender, age, and contextual influences are highlighted as possible causes of the observed variations in research findings. There is a need for fuller consideration of the influences of demographics and environmental and social contexts on research findings. It is recommended that alcohol intake measures should be standardized to a greater degree in future research. Contextual influences on expectancies also require extensive future investigation to increase the validity of research and improve alcohol-related interventions.

Measurement equivalence of the brief comprehensive effects of alcohol scale in a multiethnic sample of college students

OBJECTIVES

This study examined the measurement equivalence of the Brief Comprehensive Effects of Alcohol scale (B-CEOA; Ham et al., 2005)--a measure that assesses alcohol outcome expectancies (AOE) and expectancy evaluations-across ethnic groups and genders among multiethnic college student samples.

METHOD

Undergraduates provided self-report data in two multisite studies (Study 1: N = 1,536, 75.5% women, Mage = 19.6 years old, 56.4% European American, 9.8% African American, 7.6% Asian American, and 26.2% Hispanic/Latino American; Study 2: N = 7,767, 72.6% women, Mage = 19.8 years old, 63.3% European American, 7.9% African American, 14.3% Asian American, and 14.5% Hispanic/Latino American).

RESULTS

Exploratory and confirmatory factor analyses supported a positive and negative 4-factor model. Positive and negative AOE and expectancy evaluations were positively associated with hazardous alcohol use. Measurement equivalence of the B-CEOA across ethnicities and genders was largely supported.

CONCLUSIONS

This study provides support for the utility of the B-CEOA in college students of different ethnicities and genders in assessment and prevention.

Effects of mood and urgency on activation of general and specific alcohol expectancies

We tested the interaction of a mood manipulation with positive and negative urgency on activation of general and specific alcohol expectancies. In Study 1, high negative urgency was associated with increased positive-alcohol IAT scores following a negative mood induction, F(1, 93)=5.71, p<.01. In Study 2, high positive and negative urgency were associated with faster ETASK reaction times for global positive and tension reduction expectancies. These associations did not differ across mood conditions or expectancy subtypes. Our results suggest that positive and negative urgency are associated with increased activation of general, positive alcohol cognitions, rather than mood-specific subtypes.

Affiliation Goals and Health Behaviors

People are inherently driven by the need to form and maintain relationships, and these affiliation goals can influence health behaviors in two ways: (a) indirectly, by increasing a person's attention to others and subsequently leaving them more likely to emulate the health behaviors of others (social contagion); (b) directly, by leading people to be more likely to engage in health behaviors they perceive as helping them to form and maintain relationships with others (self-initiated behavioral engagement). In this review, we discuss the evidence for the catalyzing role of affiliation goals in these two processes for a variety of positive (e.g., exercising, smoking-cessation) and detrimental health behaviors (e.g., binge drinking and eating, needle sharing). Additionally, we discuss individual difference factors that may temporarily or chronically activate affiliation goals and ultimately impact health behaviors. Affiliation goals hold many implications for future work, and for improving interventions.

Impaired perceptual judgment at low blood alcohol concentrations

Males and females show different patterns of cognitive impairment when blood alcohol concentrations (BACs) are high. To investigate whether gender differences persist at low BACs, cognitive impairment was tested in 21 participants (11 female, 10 male) using a brief computerized perceptual judgment task that provides error rate and response time data. Participants consumed a measured dose of alcohol (average peak BAC: females: 0.052 g/100 mL, males: 0.055 g/100 mL), and were tested at four time points spanning both the rising and falling limbs of the BAC curve, in addition to a prealcohol time point. Comparisons were made against performance of these same participants at equivalent time points in an alcohol-free control condition. Males and females displayed a trend toward slower responses and more errors, even when mildly intoxicated. These data indicate that cognitive function can be impaired at BACs that are below the legal limit for driving in most countries.

Differences in implicit associations about alcohol between blacks and whites following alcohol administration

OBJECTIVE

Implicit cognitions about alcohol have been shown to be an important predictor of alcohol use. Relatively little research has been conducted on racial/ethnic differences in implicit cognitions or changes in implicit cognitions while intoxicated. This study examined differences between Blacks and Whites in positive and negative implicit associations about alcohol, as measured by the Implicit Association Test (IAT) and tested differences in IAT scores when participants were sober and intoxicated.

METHOD

One hundred thirty-five young adults (46% of Black descent) participated in an alcohol-administration study, receiving a moderate dose of alcohol (0.72 g/kg alcohol for men, 0.65 g/kg for women). The IAT was administered in two sessions, one in which alcohol was administered (30 minutes after alcohol consumption) and one in which it was not, approximately 1 week apart.

RESULTS

Repeated-measures mixed-factorial analyses of variance were conducted separately for positive and negative IAT scores. Blacks held lower positive and negative implicit cognitions about alcohol compared with Whites. Positive and negative IAT scores did not change as a function of intoxication. Positive explicit expectancies and self-reported past-month drinking behavior were related to positive IAT scores. Positive and negative IAT scores were also related to acute subjective response to alcohol, and this association differed by race.

CONCLUSIONS

Results extend previous studies by providing evidence for racial differences in implicit cognitions about alcohol and by showing the stability of the IAT while participants are intoxicated. Future studies are needed to determine what factors contribute to racial differences in implicit cognitions.

The influence of confidence on associations among personal attitudes, perceived injunctive norms, and alcohol consumption

Social norms theories hold that perceptions of the degree of approval for a behavior have a strong influence on one's private attitudes and public behavior. In particular, being more approving of drinking and perceiving peers as more approving of drinking, are strongly associated with one's own drinking. However, previous research has not considered that students may vary considerably in the confidence in their estimates of peer approval and in the confidence in their estimates of their own approval of drinking. The present research was designed to evaluate confidence as a moderator of associations among perceived injunctive norms, own attitudes, and drinking. We expected perceived injunctive norms and own attitudes would be more strongly associated with drinking among students who felt more confident in their estimates of peer approval and own attitudes. We were also interested in whether this might differ by gender. Injunctive norms and self-reported alcohol consumption were measured in a sample of 708 college students. Findings from negative binomial regression analyses supported moderation hypotheses for confidence and perceived injunction norms but not for personal attitudes. Thus, perceived injunctive norms were more strongly associated with own drinking among students who felt more confident in their estimates of friends' approval of drinking. A three-way interaction further revealed that this was primarily true among women. Implications for norms and peer influence theories as well as interventions are discussed.

"This would be better drunk": alcohol expectancies become more positive while drinking in the college social environment

The current study examined whether drinking and/or presence in the college social environment led to augmented positive alcohol expectancies among college students (N=225). Participants were approached during popular drinking nights as they exited events at which alcohol was consumed or in front of their residence as they returned home. Participants completed a brief questionnaire that included an assessment of demographics, breath alcohol concentration (BrAC), and positive expectancies. Within 48 h of baseline assessment, participants received via email a follow-up survey that re-assessed positive expectancies while sober. Positive sexual expectancies were more strongly endorsed while drinking in the college social environment for both males and females, while males also reported heightened liquid courage expectancies. In addition, positive expectancies were more strongly endorsed at higher doses of alcohol for males but not females. These findings suggest that interventions which seek to prevent alcohol abuse by targeting alcohol expectancies may wish to challenge positive expectancies in naturalistic college social settings.

Mood and implicit alcohol expectancy processes: predicting alcohol consumption in the laboratory

BACKGROUND

Implicit positive alcohol expectancy (PAE) processes are thought to respond phasically to external and internal stimuli-including mood states-and so they may exert powerful proximal influences over drinking behavior. Although social learning theory contends that mood states activate mood-congruent implicit PAEs, which in turn lead to alcohol use, there is a dearth of experimental research examining this mediation model relative to observable drinking. Moreover, an expectancy theory perspective might suggest that, rather than influencing PAEs directly, mood may moderate the association between PAEs and drinking. To test these models, this study examined the role of mood in the association between implicitly measured PAE processes (i.e., latency to endorse PAEs) and immediate alcohol consumption in the laboratory. Gender differences in these processes also were examined.

METHOD

College students (N = 146) were exposed to either a positive, negative, or neutral mood induction procedure, completed a computerized PAE reaction time (RT) task, and subsequently consumed alcohol ad libitum.

RESULTS

The mood manipulation had no direct effects on drinking in the laboratory, making the mediation hypothesis irrelevant. Instead, gender and mood condition moderated the association between RT to endorse PAEs and drinking in the laboratory. For males, RT to tension reduction PAEs was a stronger predictor of volume of beer consumed and peak blood alcohol concentration in the context of general arousal (i.e., positive and negative mood) relative to neutral mood. RT to PAEs did not predict drinking in the laboratory for females.

CONCLUSIONS

The results show that PAE processes are important determinants of immediate drinking behavior in men, suggesting that biased attention to mood-relevant PAEs-as indicated by longer RTs-predicts greater alcohol consumption in the appropriate mood context. The findings also highlight the need to consider gender differences in PAE processes. This study underscores the need for interventions that target automatic cognitive processes related to alcohol use.

Positive and negative alcohol-related consequences: associations with past drinking

While recent attention suggests that positive and negative alcohol-related expectancies are important determinants of alcohol use, less is known about what types of consequences young people report actually experiencing when drinking alcohol. The present study (N = 742, 54% women) examined positive (Fun/Social, Relaxation/Coping, Positive Image) and negative (Physical, Behavioral, Driving) consequences of alcohol use among individuals with prior drinking histories who completed surveys the summer before their first year at university. Fun/Social consequences were reported more frequently than any negative consequences. Alcohol consequences were associated with drinking behaviors. In particular, positive Fun/Social consequences and negative Physical and Driving-related consequences were related to alcohol frequency, alcohol quantity, and frequency of heavy episodic drinking. Positive consequences were at least as strongly associated with drinking as were negative consequences. The possible role of Fun/Social consequences in the escalation and maintenance of high-risk drinking is discussed.

Explicit and implicit measures of expectancy and related alcohol cognitions: a meta-analytic comparison

Implicit measures assess the influence of past experience on present behavior in the absence of respondents' awareness of that influence. Application of implicit measurement to expectancy and related alcohol cognition research has helped elucidate the links between alcohol-related experiences, the functioning of alcohol-related memory, and alcohol-related behavior. Despite these advances, a coherent picture of the role of implicit measurement has been difficult to achieve because of the diversity of implicit measures used. Two central questions have emerged: Do implicit measures assess a distinct aspect of the alcohol associative memory domain not accessible via explicit measurement; when compared with explicit measurement, do they offer unique prediction of alcohol consumption? To address these questions, the authors conducted a meta-analysis of studies using both implicit and explicit measures of alcohol expectancy and other types of alcohol-related cognition. Results indicate that implicit and explicit measures are weakly related, and although they predict some shared variance in drinking, each also contributes a unique component. Results are discussed in the context of the theoretical distinction made between the 2 types of measures.

Binge drinking in undergraduates: relationships with sex, drinking behaviors, impulsivity, and the perceived effects of alcohol

Binge drinking on university campuses is associated with social and health-related problems. To determine the factors that may predict this behavior, we collected information on alcohol use, alcohol expectations, and impulsivity from 428 undergraduate students attending a Canadian university. The subjective effects of a binge drinking dose of alcohol were assessed in a subset of participants. In the larger sample, 72% of students reported drinking at or above binge drinking thresholds on a regular basis. Men reported alcohol consumption per drinking occasion, which was consistent with other studies, but the frequency of drinking occasions among women was higher than in earlier studies, suggesting that consumption in women may be increasing. Compared with men, women reported different expectations of alcohol, specifically related to sociability and sexuality. Self-reported impulsivity scores were related, albeit weakly, to drinking behaviors and to expectations in both the sexes. Finally, intoxicated binge drinkers reported feeling less intoxicated, liking the effects more, and wanting more alcohol than did non-binge drinkers receiving an equivalent dose of alcohol. These results have implications for sex-specific prevention strategies for binge drinking on university campuses.

Gender differences in alcohol impairment of simulated driving performance and driving-related skills

AIMS

Considerable laboratory research indicates that moderate doses of alcohol impair a broad range of skilled activities related to driving performance in young adults. Although laboratory studies show that the intensity of impairment is generally dependent on the blood alcohol concentration, some reviews of this literature suggest that women might be more sensitive to the impairing effects of alcohol than men. The present study tested this hypothesis.

METHODS

Drawing on data from previous experiments in our laboratory, we compared men and women in terms of the degree to which a challenge dose of alcohol (0.65 g/kg) impaired their simulated driving performance and measures of three separate behavioral and cognitive functions important to driving performance: motor coordination, speed of information processing and information-processing capacity.

RESULTS

Alcohol significantly impaired all aspects of performance. Moreover, women displayed greater impairment than men on all behavioral tests and also reported higher levels of subjective intoxication compared with men.

CONCLUSIONS

Both biological and social-cultural factors have been implicated in gender differences in the behavioral responses to alcohol. The current evidence of heightened sensitivity to alcohol in women highlights the need for better understanding the biological and environmental factors underlying this gender difference.

Behavioral inhibition and activation systems: differences in substance use expectancy organization and activation in memory

We used multidimensional scaling to model the semantic network of alcohol and marijuana expectancies (N=897). Preference mapping was used to estimate vectors representing patterns of activation through the network as a function of levels of behavioral inhibition (BIS) and behavioral activation (BAS). Individuals with low BIS combined with high BAS levels exhibited patterns of activation emphasizing behavioral activation similar to heavier drug users in previous research. High BIS, low BAS individuals exhibited activation patterns with greater emphasis on inhibitory expectancies similar to low-level users. Differences in expectancy activation patterns were maintained after controlling for substance use and gender. Individual differences in BIS/BAS are associated with the organization of semantic networks and patterns of activation of expectancies contributing to differences in substance use behavior.

Influence of alcohol use experience and motivational drive on college students' alcohol-related cognition

BACKGROUND

Cognitive processes are thought to be pivotal to risk for heavy drinking. However, few studies have examined the alcohol cue-activated positive and negative semantic memory networks that may be pivotal to drinking behavior. Moreover, much is to be understood about the influences of cognitive processes, particularly in high-risk drinking samples such as college students. The current study examines the sequential process of alcohol cues activating valenced semantic memory networks, and the influences of prior drinking experience and individual differences in motivational drive on this automatic (implicit) cognitive process.

METHODS

Participants (N = 138, 52% women) were college freshmen prescreened to represent the full range of drinking experience (i.e., current abstainers, light and heavy drinkers). Participants completed self-reports of past month alcohol use, and individual differences in behavioral inhibition system (BIS) and behavioral approach/activation system (BAS). Alcohol cue-elicited positive and negative semantic memory networks were assessed using a priming task.

RESULTS

Results from the priming task revealed that for light drinkers alcohol cues were equally as likely to activate positive and negative semantic memory networks, suggesting relatively neutral cue-elicited alcohol attitudes. Conversely, for heavy drinkers, alcohol cues more readily activated positive relative to negative semantic memory networks, suggesting relatively positive cue-elicited alcohol attitudes. Furthermore, positive alcohol cue-elicited semantic memory networks (positive attitudes) were evident for individuals characterized by a strong BAS and weak BIS (as hypothesized) and those characterized by a weak BAS and weak BIS.

CONCLUSIONS

The findings suggest that alcohol-cue elicited positive semantic memory networks may be pivotal to risk for heavy drinking. Specifically, it is via the influence on this cognitive process that prior drinking experience and individual differences in motivational drive, respectively, may maintain and predispose individuals to risk for heavy alcohol use.

Enhancement Motives Mediate the Positive Association Between Mind/Body Awareness and College Student Drinking

This study was undertaken to examine the relationship between mindfulness and alcohol consumption among college students, with enhancement and coping motives evaluated as potential mediators. Differences between men and women in drinking and mindfulness (mind/body awareness specifically) were also considered. Undergraduate students (n = 212, 51% male) completed a survey that included measures of mindfulness, drinking motives, and drinking. Results indicated that greater mind/body awareness was associated with more alcohol use in men and women, and non-attachment to thoughts was associated with less drinking in men. Furthermore, enhancement but not coping motives were found to mediate these associations for men only. Results are discussed in terms of the theoretical implications for understanding the relationship between mindfulness and alcohol consumption.

Projected alcohol dose influences on the activation of alcohol expectancies in college drinkers

BACKGROUND

Alcohol expectancies have been linked to drinking behavior in college students, and vary according to a number of factors, including projected dose of alcohol. Research using Multidimensional Scaling (MDS) suggests that drinking may be influenced by activation of differing expectancy dimensions in memory, yet studies have not examined expectancy activation according to projected alcohol doses.

METHODS

The present study used Individual Differences Scaling (INDSCAL) to map expectancy networks of college students (n = 334) who imagined varied drinking at high and low alcohol doses. Expectancy activation was modeled by dose, as well as by gender and by drinking patterns (typical quantity, blood alcohol content, heavy episodic drinking, and alcohol consequences). Expectancies were organized along positive-negative and arousal-sedation dimensions. Anticipation of a high dose of alcohol was associated with greater emphasis on the arousal-sedation dimension, whereas anticipation of a lower dose was associated with greater emphasis on the positive-negative dimension.

RESULTS

Across heavy, medium, and light drinkers, expectancy dimensions were most distinguishable at higher doses; activation patterns were more similar across drinking groups at lighter doses. Modest evidence for the influence of gender on activation patterns was observed. Findings were consistent across alcohol involvement indices.

CONCLUSIONS

These data suggest that both dimensionality and context should be considered in the refinement of interventions designed to alter expectancies in order to decrease hazardous drinking.

The moderating role of gender in the prospective associations between expectancies and alcohol-related negative consequences among college students

This study examined if alcohol expectancies (assessed with the Comprehensive Effects of Alcohol-Brief Form) were prospectively related to negative consequences (assessed with the Rutgers Alcohol Problem Index) and if these associations varied by gender. Data were collected from 558 first-year college students at a university in the southeastern United States as part of an intervention study conducted during their initial residence hall meetings of the fall semester of 2007. Only those students who used alcohol and completed both baseline and 3-month follow-up surveys were included in the analyses (n = 347). Mixed-model multivariate analyses indicated that higher sexuality and tension reduction expectancies were prospectively related to more alcohol consumption-related negative consequences for males but not for females. Findings suggest that intervention efforts to prevent problem drinking would benefit from being gender-specific. The study's limitations are noted.

Implicit cognition and substance use: a meta-analysis

A meta-analysis of 89 effect sizes based on the responses of 19,930 participants was conducted to estimate the magnitude of the relationship between substance-related implicit cognitions and the use of legal and illegal substances. The analysis produced a weighted average effect size of r=.31. Moderation analyses revealed significant heterogeneity in effect sizes related to facet of implicit cognition, measurement strategy, sample composition, and substance type. The largest effect sizes were found in studies that assessed implicit semantic associations, employed word association measures, and focused on marijuana use. The findings suggest that implicit cognition is a reliable predictor of substance use, although effect sizes vary as a function of several methodological factors.

Are social norms the best predictor of outcomes among heavy-drinking college students?

OBJECTIVE

This research was designed to evaluate the relative contribution of social norms, demographics, drinking motives, and alcohol expectancies in predicting alcohol consumption and related problems among heavy-drinking college students.

METHOD

Participants included 818 (57.6% women) first-year undergraduates who reported at least one heavy-drinking episode in the previous month. In addition to providing demographic information (gender and fraternity/sorority membership) participants completed Web-based assessments of social norms (perceived descriptive norms regarding typical student drinking, injunctive norms regarding friends' and parents' approval), motives (social, enhancement, coping, and conformity), and expectancies and evaluations of positive and negative alcohol effects.

RESULTS

Regression results indicated that descriptive and injunctive norms were among the best predictors of college student drinking. With respect to alcohol problems, results indicated that coping motives accounted for the largest proportion of unique variance. Finally, results revealed that alcohol consumption mediated the relationships between predictors and problems for social norms, whereas coping motives, negative expectancies, and evaluation of negative effects were directly associated with alcohol problems despite having relatively weak or null unique associations with consumption.

CONCLUSIONS

The results of this study substantiate social norms as being among the best predictors of alcohol consumption in this population and suggest that drinking to cope is a better predictor of problems. The findings are discussed in terms of practical prevention and treatment implications.

The effects of alcohol expectancies on drinking behaviour in peer groups: observations in a naturalistic setting

AIMS

To study the functionality of alcohol expectancies in predicting drinking behaviour in existing peer groups of young adults in a 'naturalistic' setting.

DESIGN AND SETTING

Young adults were invited to join an experiment with their peer group in a bar annex laboratory. During a 'break' of 50 minutes in this experiment, their activities, social behaviour and drinking behaviour were observed with digital video and audio equipment.

PARTICIPANTS

Twenty-eight peer groups were involved in this study. A peer group consisted of seven to nine people, with relationships ranging from intimate relations and close friendships to being acquaintances. A total of 238 participants were involved. Measurements Information of the drinking behaviour from observations and questionnaire data on alcohol expectancies provide the opportunity to look at how and which expectancies are related to actual drinking patterns. Multiple regression and multi-level analyses were applied.

FINDINGS

Expectancies on the positive and arousing effects of alcohol consumption were related to alcohol consumption in a naturalistic, social drinking situation, in addition to group effects of drinking. Expectancies on the negative and sedative effects of drinking, however, were not related to drinking.

CONCLUSIONS

The findings indicate that among young adults observed in a peer group and naturalistic drinking setting, positive expectancies about the effects of alcohol and expectancies about the effects of alcohol on arousal are related positively to drinking level.