Alcohol's effects on self-awareness

The effects of alcohol on emotion in social drinkers

Understanding why people drink alcohol and in some cases develop drinking problems has long puzzled researchers, clinicians, and patients alike. In the mid-1940s and early 1950s, experimental research began to systematically investigate alcohol's hedonic properties. Presumably, alcohol consumption would prove reinforcing as a consequence of its capacity either to relieve stress or to brighten positive emotional experiences. This article reviews experimental research through the years examining the impact of alcohol on both the relief of negative affect and the enhancement of positive affect. It covers initial accounts that emphasized direct pharmacological effects of ethanol on the central nervous system. These early studies offered surprisingly tepid support for the premise that alcohol improved emotional states. Next, studies conducted in the 1970s are considered. Informed by social learning theory and employing advances derived from experimental psychology, this research sought to better understand the complex effects of alcohol on emotion. Coverage of this work is followed by discussion of current formulations, which integrate biological and behavioral approaches with the study of cognitive, affective, and social processes. These current perspectives provide insight into the particular conditions under which alcohol can boost emotional experiences. Finally, future research directions and clinical implications are considered.

Neural response to pictorial health warning labels can predict smoking behavioral change

In order to improve our understanding of how pictorial health warning labels (HWLs) influence smoking behavior, we examined whether brain activity helps to explain smoking behavior above and beyond self-reported effectiveness of HWLs. We measured the neural response in the ventromedial prefrontal cortex (vmPFC) and the amygdala while adult smokers viewed HWLs. Two weeks later, participants’ self-reported smoking behavior and biomarkers of smoking behavior were reassessed. We compared multiple models predicting change in self-reported smoking behavior (cigarettes per day [CPD]) and change in a biomarkers of smoke exposure (expired carbon monoxide [CO]). Brain activity in the vmPFC and amygdala not only predicted changes in CO, but also accounted for outcome variance above and beyond self-report data. Neural data were most useful in predicting behavioral change as quantified by the objective biomarker (CO). This pattern of activity was significantly modulated by individuals’ intention to quit. The finding that both cognitive (vmPFC) and affective (amygdala) brain areas contributed to these models supports the idea that smokers respond to HWLs in a cognitive-affective manner. Based on our findings, researchers may wish to consider using neural data from both cognitive and affective networks when attempting to predict behavioral change in certain populations (e.g. cigarette smokers).

Self-consciousness as a moderator of the effect of social drinking motives on alcohol use

This study evaluated self-consciousness as a moderator of the relationship between social drinking motives and alcohol use. Participants included 243 undergraduate students who reported alcohol use, alcohol-related problems, self-consciousness, and social motives. We expected that social drinking motives, private self-consciousness, and public self-consciousness would be positively associated with drinking and that this relationship would be moderated by self-consciousness. Specifically, we expected this relationship to be stronger for people lower in private self-consciousness, based on decreased awareness about their internal states. In addition, we expected that the relationship between social motives and drinking would be stronger among those who were higher in public self-consciousness, given their focus on the self as a social object. Consistent with expectations, the associations between social motives and peak drinking and drinks per week were more strongly associated among those lower in private self-consciousness. However, inconsistent with expectations, the relationship between social motives and drinking was stronger among those who were lower, rather than higher, in public self-consciousness. Overall implications of these research findings extend previous research emphasizing the importance of considering social influences in etiology and prevention of drinking. Moreover, while social motives are a consistent predictor of drinking among young adults, this is not universally true. This study contributes to social cognitive literature seeking to understand and identify individual factors related to drinking and their application to the adaptation of existing intervention approaches.

The neurocircuitry of impaired insight in drug addiction

More than 80% of addicted individuals fail to seek treatment, which might reflect impairments in recognition of severity of disorder. Considered by some as intentional deception, such 'denial' might instead reflect dysfunction of brain networks subserving insight and self-awareness. Here we review the scant literature on insight in addiction and integrate this perspective with the role of: (i) the insula in interoception, self-awareness and drug craving; (ii) the anterior cingulate in behavioral monitoring and response selection (relevant to disadvantageous choices in addiction); (iii) the dorsal striatum in automatic habit formation; and (iv) drug-related stimuli that predict emotional behavior in addicted individuals, even without conscious awareness. We discuss implications for clinical treatment including the design of interventions to improve insight into illness severity in addiction.

Paraphernalia for teaching, training, and research on blood alcohol concentration

Blood alcohol concentration (BAC) information and paraphernalia designed to predict or measure BAC are relatively common components of alcohol education, research, and treatment programs. The first purpose of this paper is to describe the types and the strengths and weaknesses of blood alcohol concentration paraphernalia. The second purpose is to identify the potential uses and requisite skills for operating BAC paraphernalia for teaching, training, and research. Further research is needed to define the parameters of utility of BAC paraphernalia, so that alcohol professionals can make decisions regarding the selection and use of these devices based on empirical evidence.