Nicotine differentially inhibits the acoustic startle reflex in African American and Caucasian American smokers

Anhedonia in tobacco withdrawal among African-American smokers

Anhedonia-diminished interest and pleasure in response to rewards-may be a symptom of tobacco withdrawal that is understudied in priority populations. This experiment investigated the magnitude and correlates of various dimensions of anhedonia during tobacco withdrawal among African-American (AA) smokers-a population subject to health disparities. AA smokers (N = 607; ≥ 10 cigarettes/day, 37.8% female, M[SD] age = 50.0[10.6] years) completed self-report measures assessing expected pleasure from (i.e., consummatory anhedonia) and desire to engage in (i.e., anticipatory anhedonia) various types of hypothetically experienced rewards at counterbalanced 16-hr tobacco deprived and nondeprived lab visits. Other tobacco withdrawal symptom measures (e.g., craving, negative affect, hunger) were also assessed. Tobacco deprivation most robustly increased scores on a composite measure of consummatory anhedonia directed toward various reward domains (i.e., hobbies, sensory experiences, social activities; d = .32, p < .001). Deprivation modestly increased consummatory and anticipatory anhedonia directed toward sexual rewards (ds = .09-.12, ps < .02), did not significantly change anhedonia toward food rewards, and decreased anhedonia directed toward psychoactive drug rewards (i.e., increased desire for and pleasure from drugs; ds = -.21 to -.19, ps < .001). Deprivation-induced changes in anhedonia were modestly correlated with other withdrawal symptoms (average |r|s = .04-.23) and were amplified among participants with higher nicotine dependence and lower positive affect-related traits (|β|s = .10-.12, ps < .01). Some dimensions of anhedonia may be genuine expressions of acute tobacco withdrawal in AA smokers. Applying multi-dimensional anhedonia conceptualizations might advance basic knowledge and treatment of tobacco use disorder, improve smoking cessation outcomes, and address tobacco-related health disparities facing AA smokers. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

The effect of smoking on depressive symptoms

BACKGROUND

People who smoke tend to report higher levels of psychological distress than those who do not smoke. However, studies suggest that smoking reduces many sub-dimensions of distress, including depressive symptoms. A negative (i.e. depression reducing) effect of smoking on depressive symptoms might be observed in survey panel data only after adjustment for the effect of depressive symptoms on smoking. Results from analyses that make that adjustment are presented within groups jointly defined by race and gender, and for all respondents in a representative sample of the U.S.

POPULATION

METHOD

Reciprocal effects of smoking and depressive symptoms (DSx) are estimated with dynamic panel models. Data are from the Americans' Changing Lives study which assessed smoking and depressive symptoms five times over 25 years. Additional analyses provide estimates of effect of continuing to smoke versus quitting.

RESULTS

The estimated effect of smoking on DSx after adjustment for the simultaneous effect of DSx on smoking and unobserved confounders is negative among women. The estimated effect among men is not statistically significant, and no race difference is observed.

CONCLUSIONS

The tendency for smoking to reduce depressive symptoms among American women is masked in analyses that fail to account for the reciprocal effect of depressive symptoms on smoking.

Happiness as a Buffer of the Association Between Dependence and Acute Tobacco Abstinence Effects in African American Smokers

Introduction

African American (AA) smokers are at disproportionate risk of tobacco dependence, utilizing smoking to regulate stress, and poor cessation outcomes. Positive emotional traits may function as coping factors that buffer the extent to which dependence increases vulnerability to adverse responses to acute tobacco abstinence (ie, tobacco withdrawal). This laboratory study examined subjective happiness (SH; dispositional orientation towards frequent and intense positive affect [PA] and life satisfaction) as a moderator of the relation between tobacco dependence and subjective and behavioral abstinence effects among AA smokers.

Methods

AA smokers (N = 420, 39.0% female) completed self-report measures of tobacco dependence and SH followed by two counterbalanced experimental sessions (nonabstinent vs. 16-hour abstinent) involving self-report measures of composite withdrawal, urge to smoke, and mood, and a behavioral smoking task in which participants could: (1) earn money to delay smoking reinstatement, and (2) subsequently purchase cigarettes to smoke.

Results

Tobacco dependence was positively associated with increased abstinence effects in composite withdrawal, urge to smoke, PA, and latency to smoking reinstatement (ps < .04). SH significantly moderated the relation between dependence and abstinence-induced increases in composite withdrawal (β = -.17, p < .001), such that the predictive power of dependence on withdrawal severity grew proportionately weaker as levels of SH increased.

Conclusions

SH may insulate against adverse effects of dependence on withdrawal during acute smoking abstinence, particularly withdrawal symptom clusters that are craving- and mood-based. Consideration of positive emotional traits as stress-coping factors in the dependence-withdrawal link may be warranted in research and practice with AA smokers.

Implications

The current study contributes to a growing body of literature examining the potentially advantageous role of positive emotional traits to smokers. We do so by identifying a relatively understudied psychological construct within tobacco research-subjective happiness-that may suppress the extent to which more severe tobacco dependence increases risk for subjective withdrawal-related distress during acute smoking abstinence in AA smokers. In doing so, the study provides a primer for future targeting of subjective happiness and other positive emotional traits as means to understand and treat acute tobacco abstinence effects among dependent AA smokers.

A prospective study of angle grinder injuries in the hands and forearms during a one-year period

Angle grinders are powerful tools used for cutting, shaving and polishing metal, stone, concrete and many hard surfaces in the work and hobby context. The aim of this study was to evaluate the acute hand injuries caused by angle grinders and to identify risk factors. Out of 742 acute hand and forearm injuries presenting in our emergency department between March 2016 and March 2017, 82 cases of injury due to angle grinder were included in the study. The age, gender, occupation, experience and education level of the injured patients were recorded. In addition, the location, mechanism, time of day, cigarette or alcohol use and occupational cases were determined. The Modified Hand Injury Severity Score (MHISS) was used to determine the injury severity. The vast majority of injuries (except 8) were not occupational injuries. They often occurred when individuals were using this tool outside of a work context (home, etc.); 44% of the patients were retired. There were more injuries between the hours of 3 pm and 6 pm. The mean overall MHISS score of was 74 (2-330). These angle grinder injuries, many of which are severe, are difficult to treat and the resulting disability is high. Many factors, such as smoking, age and time of day contribute to these injuries. Precautions should be taken and safety training should be provided for this powerful tool which is widely used and easy to obtain.

Attention Deficit Hyperactivity Disorder symptoms and smoking trajectories: race and gender differences

PURPOSE

This study examined the influence of Attention Deficit Hyperactivity Disorder (ADHD) symptoms severity and directionality (hyperactive-impulsive symptoms relative to inattentive symptoms) on trajectories of the probability of current (past month) smoking and the number of cigarettes smoked from age 13 to 32. Racial and gender differences in the relationship of ADHD symptoms and smoking trajectories were also assessed.

METHODS

A subsample of 9719 youth (54.5% female) was drawn from the National Longitudinal Study of Adolescent to Adult Health (Add Health). Cohort sequential design and zero-inflated Poisson (ZIP) latent growth modeling were used to estimate the relationship between ADHD directionality and severity on smoking development.

RESULTS

ADHD severity's effect on the likelihood of ever smoking cigarettes at the intercept (age 13) had a greater impact on White males than other groups. ADHD severity also had a stronger influence on the initial number of cigarettes smoked at age 13 among Hispanic participants. The relationships between ADHD directionality (hyperactive-impulsive symptoms relative to inattentive symptoms) and a higher number of cigarettes smoked at the intercept were stronger among Hispanic males than others. Gender differences manifested only among Whites.

CONCLUSION

ADHD severity and directionality had unique effects on smoking trajectories. Our results also highlight that the risk of ADHD symptoms may differ by race and gender.

Affective reactivity during smoking cessation of never-quitters as compared with that of abstainers, relapsers, and continuing smokers

Much effort has been devoted to examining the differences in postcessation affective experience between smoking abstainers and relapsers. However, little attention has been given to the affective changes of smokers who, despite their motivation to quit, fail to achieve even a brief period of abstinence. Using affect-modulated startle response and self-report questionnaires, we measured the postcessation affective changes of 115 smokers (60 men, 55 women) who participated in a laboratory investigation of affective reactivity during smoking cessation. Among our participants, 34 were abstainers (16 men, 18 women), 16 were never-quitters (8 men, 8 women), 19 were relapsers (8 men, 11 women), and 46 were controls (28 men, 18 women). We found a significant Stimulus Valence × Session × Group interaction effect on startle responses, which suggested that while abstainers, relapsers, and control exhibited the prototypical affect-modulated startle response across postcessation sessions, never-quitters displayed an atypical response pattern in which emotional pictures no longer modulated the startle response. Never-quitters also reported increasingly higher negative and lower positive affect across postcessation sessions. Using affect-modulated startle response and self-report questionnaires, this study found a significant difference in the affective reactivity between smokers who could and smokers who could not establish an initial abstinence of 24 hours.

Race/ethnicity, psychological distress, and fruit/vegetable consumption. The nature of the distress-behavior relation differs by race/ethnicity

OBJECTIVE

We explored how the relation between psychological distress and fruit/vegetable consumption differed as a function of race/ethnicity.

METHOD

Data from the 2007 Health Information National Trends Survey was analyzed. Participants reported current psychological distress, race/ethnicity, and current fruit and vegetable consumption. Linear regression analyses were used to examine the association between race/ethnicity, distress, and their interaction and fruit and vegetable consumption.

RESULTS

There was a significant interaction between race/ethnicity and psychological distress in predicting fruit and vegetable consumption. Follow-up analyses indicated that distress was related to fruit and vegetable consumption for White and Hispanic but not for African American respondents.

CONCLUSION

The association between psychological distress and fruit/vegetable consumption differs as a function of race/ethnicity. The findings have implications for understanding the role of distress in eating behavior regulation and for developing interventions to address fruit/vegetable consumption targeted to members of different race/ethnic groups.

Psychological distress and smoking behavior: the nature of the relation differs by race/ethnicity

OBJECTIVE

We explored how the relation between psychological distress and smoking behavior differed as a function of race/ethnicity of respondents to a representative national survey.

METHODS

Data from the 2007 Health Information National Trends Survey were analyzed. Participants reported experiences of psychological distress in the past 30 days, race/ethnicity, current smoking status (smoker/nonsmoker), and number of cigarettes smoked per day. Logistic regression and linear regression analyses were used to examine the influence of race, distress, and their interaction on smoking behavior using survey weighting techniques to account for sampling strategy and nonresponse.

RESULTS

For current smoking status, there was a significant interaction between race and psychological distress. Follow-up analyses indicated that psychological distress was related to smoking status for White but not for Black or Hispanic respondents. Similar results were found for number of cigarettes smoked per day among current smokers.

CONCLUSIONS

The results suggest that the often-reported association between psychological distress and smoking is relatively specific to White individuals. The relation does not appear to characterize either Black or Hispanic individuals.