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Cao J, Ball IK, Summerell E, Humburg P, Denson T, Rae CD. Effect of Ethanol on Brain Electrical Tissue Conductivity in Social Drinkers. J Magn Reson Imaging 2024. [PMID: 39105662 DOI: 10.1002/jmri.29548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/09/2024] [Accepted: 07/11/2024] [Indexed: 08/07/2024] Open
Abstract
BACKGROUND How the biophysics of electrical conductivity measures relate to brain activity is poorly understood. The sedative, ethanol, reduces metabolic activity but its impact on brain electrical conductivity is unknown. PURPOSE To investigate whether ethanol reduces brain electrical tissue conductivity. STUDY TYPE Prospective. SUBJECTS Fifty-two healthy volunteers (aged 18-37 years, 22 females, 30 males). FIELD STRENGTH/SEQUENCE 3 T, T1-weighted, multi-shot, turbo-field echo (TFE); 3D balanced fast-field echo (bFFE). ASSESSMENT Brain gray and white matter tissue conductivity measured with phase-based magnetic resonance electrical properties tomography (MREPT) compared before and 20 minutes after ethanol consumption (0.7 g/kg body weight). Differential conductivity whole brain maps were generated for three subgroups: those with strong (∆ σ max $$ \Delta {\sigma}_{\mathrm{max}} $$ > 0.1 S/m; N = 33), weak (0.02 S/m ≤ ∆ σ max $$ \Delta {\sigma}_{\mathrm{max}} $$ ≤ 0.1 S/m; N = 9) conductivity decrease, and no significant response (∆ σ max $$ \Delta {\sigma}_{\mathrm{max}} $$ < 0.02 S/m, N = 10). Maps were compared in the strong response group where breath alcohol rose between scans, vs. those where it fell. STATISTICAL TESTS Average breath alcohol levels were compared to the differential conductivity maps using linear regression. T-maps were generated (threshold P < 0.05 and P < 0.001; minimum cluster 48 mm3). Differential conductivity maps were compared with ANOVA. RESULTS Whole-group analysis showed decreased conductivity that did not survive statistical thresholding. Strong responders (N = 33) showed a consistent pattern of significantly decreased conductivity (∆ σ max $$ \Delta {\sigma}_{\mathrm{max}} $$ > 0.1 S/m) in frontal/occipital and cerebellar white matter. The weak response group (N = 9) showed a similar pattern of conductivity decrease (0.02 S/m ≤ ∆ σ max $$ \Delta {\sigma}_{\mathrm{max}} $$ ≤ 0.1 S/m). There was no significant relationship with breath alcohol levels, alcohol use, age, ethnicity, or sex. The strong responders' regional response was different between ascending (N = 12) or descending (N = 20) alcohol during the scan. DATA CONCLUSION Ethanol reduces brain tissue conductivity in a participant-dependent and spatially dependent fashion. EVIDENCE LEVEL 1 TECHNICAL EFFICACY: Stage 2.
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Affiliation(s)
- Jun Cao
- Neuroscience Research Australia, Sydney, New South Wales, Australia
| | - Iain K Ball
- Philips Australia & New Zealand, North Ryde, New South Wales, Australia
| | - Elizabeth Summerell
- School of Psychology, The University of New South Wales, Sydney, New South Wales, Australia
| | - Peter Humburg
- Mark Wainwright Analytical Centre, Stats Central, The University of New South Wales, Sydney, New South Wales, Australia
| | - Tom Denson
- School of Psychology, The University of New South Wales, Sydney, New South Wales, Australia
| | - Caroline D Rae
- Neuroscience Research Australia, Sydney, New South Wales, Australia
- School of Psychology, The University of New South Wales, Sydney, New South Wales, Australia
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Karoly HC, Drennan ML, Prince MA, Zulic L, Dooley G. Consuming oral cannabidiol prior to a standard alcohol dose has minimal effect on breath alcohol level and subjective effects of alcohol. Psychopharmacology (Berl) 2023; 240:1119-1129. [PMID: 36939855 PMCID: PMC10622182 DOI: 10.1007/s00213-023-06349-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 02/26/2023] [Indexed: 03/21/2023]
Abstract
RATIONALE Cannabidiol (CBD) is found in the cannabis plant and has garnered attention as a potential treatment for alcohol use disorder (AUD). CBD reduces alcohol consumption and other markers of alcohol dependence in rodents, but human research on CBD and alcohol is limited. It is unknown whether CBD reduces drinking in humans, and mechanisms through which CBD could impact behavioral AUD phenotypes are unknown. OBJECTIVES This study explores effects of oral CBD on breath alcohol level (BrAC), and subjective effects of alcohol in human participants who report heavy drinking. METHODS In this placebo-controlled, crossover study, participants consumed 30 mg CBD, 200 mg CBD, or placebo CBD before receiving a standardized alcohol dose. Participants were blind to which CBD dose they received at each session and completed sessions in random order. Thirty-six individuals completed at least one session and were included in analyses. RESULTS Differences in outcomes across the three conditions and by sex were explored using multilevel structural equation models. BrAC fell fastest in the placebo condition, followed by 30 mg and 200 mg CBD. Stimulation decreased more slowly in the 200 mg CBD condition than in placebo (b = - 2.38, BCI [- 4.46, - .03]). Sedation decreased more slowly in the 30 mg CBD condition than in placebo (b = - 2.41, BCI [- 4.61, - .09]). However, the magnitude of condition differences in BrAC and subjective effects was trivial. CONCLUSIONS CBD has minimal influence on BrAC and subjective effects of alcohol. Further research is needed to test whether CBD impacts alcohol consumption in humans, and if so, what mechanism(s) may explain this effect.
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Affiliation(s)
- Hollis C Karoly
- Department of Psychology, Colorado State University, 1876 Campus Delivery, Fort Collins, CO, 80523-1876, USA.
| | - Meggan L Drennan
- Department of Psychology, Colorado State University, 1876 Campus Delivery, Fort Collins, CO, 80523-1876, USA
| | - Mark A Prince
- Department of Psychology, Colorado State University, 1876 Campus Delivery, Fort Collins, CO, 80523-1876, USA
| | - Leila Zulic
- Department of Psychology, Colorado State University, 1876 Campus Delivery, Fort Collins, CO, 80523-1876, USA
| | - Gregory Dooley
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, 80523-1601, USA
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3
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Baltariu IC, Enea V, Kaffenberger J, Duiverman LM, Aan Het Rot M. The acute effects of alcohol on social cognition: A systematic review of experimental studies. Drug Alcohol Depend 2023; 245:109830. [PMID: 36907121 DOI: 10.1016/j.drugalcdep.2023.109830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 01/27/2023] [Accepted: 02/15/2023] [Indexed: 03/14/2023]
Abstract
RATIONALE Alcohol effects on social cognition have been studied by measuring facial emotion recognition, empathy, Theory of Mind (ToM) and other forms of information processing. OBJECTIVES Using the PRISMA guidelines, we reviewed experimental studies that examined acute effects of alcohol on social cognition. METHODS Scopus, PsycInfo, PubMed, and Embase were searched between July 2020 - January 2023. The PICO strategy was used for identifying participants, interventions, comparators, and outcomes. Participants (N = 2330) were adult social alcohol users. Interventions consisted of acute alcohol administration. Comparators included placebo or the lowest alcohol dose. Outcome variables were grouped into three themes: facial processing, empathy and ToM, and perceptions of inappropriate sexual behavior. RESULTS A total of 32 studies were reviewed. Studies measuring facial processing (67%) often found no effects of alcohol on the recognition of specific emotions, facilitated emotion recognition at lower doses and worsened emotion recognition at higher doses. In studies measuring empathy or ToM (24%), lower doses were more likely to lead to improvements while higher doses were generally impairing. Within the third group of studies (9%), moderate to high alcohol doses made it more difficult to perceive sexual aggression accurately. CONCLUSIONS Lower alcohol doses might sometimes help facilitate social cognition, but most data were in line with the idea that alcohol tends to worsen social cognition, particularly at higher doses. Future studies might focus on examining other moderators of the effects of alcohol on social cognition, particularly interpersonal characteristics such as trait emotional empathy, and participant and target gender.
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Affiliation(s)
- Isabelle Cristina Baltariu
- Department of Psychology, University of Groningen, the Netherlands; Department of Psychology, Alexandru Ioan Cuza University of Iași, Romania.
| | - Violeta Enea
- Department of Psychology, Alexandru Ioan Cuza University of Iași, Romania
| | - Jan Kaffenberger
- Department of Psychology, University of Groningen, the Netherlands
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Elliott M, Terrett G, Curran HV, Rendell PG, Henry JD. Episodic foresight is impaired following acute alcohol intoxication. J Psychopharmacol 2023; 37:490-497. [PMID: 36825668 DOI: 10.1177/02698811231154851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
BACKGROUND Alcohol intoxication disrupts many aspects of cognition, including the generation of phenomenological characteristics of future events (a component of episodic foresight), and the execution of directed preparatory behaviours (a component of prospective memory). However, no study has tested whether alcohol intoxication is also associated with deficits engaging episodic foresight to guide future-directed behaviour. AIMS This study was designed to provide the first test of how alcohol intoxication influences the functional application of episodic foresight. The secondary aim was to establish the degree to which any observed episodic foresight difficulties associated with alcohol use might reflect broader problems in retrospective memory and executive control. Sex differences were also examined. METHODS Healthy adult social drinkers randomly received either a moderate dose of 0.6 g/kg alcohol (n = 61) or a matched placebo drink (n = 63) and then completed a validated measure that met strict criteria for assessing the functional application of episodic foresight as well as a broader cognitive test battery. RESULTS Relative to the placebo condition, episodic foresight was impaired by acute alcohol consumption, with this impairment related to poorer retrospective memory, but not executive control. The negative effects of alcohol intoxication on episodic foresight did not differ as a function of sex. CONCLUSIONS Even a moderate level of intoxication impairs the ability to use episodic foresight in a functionally adaptive way. These findings have implications for understanding many of the maladaptive behaviours that are often associated with acute alcohol use.
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Affiliation(s)
- Morgan Elliott
- School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, VIC, Australia
| | - Gill Terrett
- School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, VIC, Australia
| | - H Valerie Curran
- Clinical Psychopharmacology Unit, University College London, London, UK
| | - Peter G Rendell
- School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, VIC, Australia
| | - Julie D Henry
- School of Psychology, The University of Queensland, Brisbane, QLD, Australia
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Maisto SA, Simons JS, Palfai TP, Moskal D, Sheinfil AZ, Tahaney KD. Effects of Alcohol Intoxication on Sexual Decision-Making among Men Who Have Sex with Men (MSM): Alcohol's Influences on Self-Control Processes. Clin Psychol Sci 2023; 11:40-58. [PMID: 36865995 PMCID: PMC9976705 DOI: 10.1177/21677026221079780] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This experiment tested mechanisms linking alcohol intoxication and analogue determinants of condomless anal intercourse (CAI) in a sample of 257 men who have sex with men (MSM). The two mechanisms tested were implicit approach biases toward CAI stimuli and executive working memory. Participants were randomized to 3 conditions (water control, placebo, or alcohol) and following beverage administration completed a working memory task, an Approach Avoidance Task of sexual vs. condom stimuli, and two video role-play vignettes of high-risk sexual scenarios. Sexual arousal and CAI intentions were assessed by self-report, and behavioral skills and risk exposure were derived from participants' role-play behavior. Estimation of four path models showed that the hypothesized mechanisms were supported for the CAI intention outcome, but the findings for the skills and risk exposure outcome were mixed. Implications for development and enhancement of HIV prevention interventions were discussed.
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Affiliation(s)
| | - Jeffrey S. Simons
- Department of Psychology, University of South Dakota, Vermillion, USA
| | - Tibor P. Palfai
- Department of Psychological and Brain Sciences, Boston University, Boston, USA
| | - Dezarie Moskal
- VA Center for Integrated Healthcare, VA Western New York Healthcare System, Buffalo, NY, USA,School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA
| | - Alan Z Sheinfil
- Department of Psychology, Syracuse University, Syracuse, USA
| | - Kelli D. Tahaney
- Department of Psychological and Brain Sciences, Boston University, Boston, USA
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Hildebrand Karlén M, de Bejczy A, Anckarsäter H, Guðjónsson G. What does current science tell us about the accuracy, reliability, and completeness of intoxicated witnesses? A case example of the murder of a prime minister. Front Psychol 2022; 13:982992. [PMID: 36389524 PMCID: PMC9650999 DOI: 10.3389/fpsyg.2022.982992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/27/2022] [Indexed: 11/25/2022] Open
Abstract
Generally, the testimony of intoxicated witnesses has been considered relatively unreliable, but recent research has nuanced the knowledge base regarding these vulnerable witnesses.
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Affiliation(s)
- Malin Hildebrand Karlén
- Department of Psychology, University of Gothenburg, Gothenburg, Sweden
- Department of Psychiatry and Neurochemistry, Centre for Ethics, Law and Mental Health, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department for Forensic Psychiatry, National Board of Forensic Medicine, Gothenburg, Sweden, Gothenburg, Sweden
- *Correspondence: Malin Hildebrand Karlén
| | - Andrea de Bejczy
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Henrik Anckarsäter
- Department of Psychiatry and Neurochemistry, Centre for Ethics, Law and Mental Health, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Gísli Guðjónsson
- Institute of Psychiatry, King's College London, London, United Kingdom
- School of Business, Reykjavík University, Reykjavík, Iceland
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Ueno F, Matsushita S, Hara S, Oshima S, Roh S, Ramchandani VA, Mimura M, Uchida H. Influence of alcohol and acetaldehyde on cognitive function: findings from an alcohol clamp study in healthy young adults. Addiction 2022; 117:934-945. [PMID: 34735038 DOI: 10.1111/add.15733] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 10/18/2021] [Indexed: 11/28/2022]
Abstract
AIMS To investigate the acute effects of intravenous alcohol and its metabolite acetaldehyde on cognitive function in healthy individuals. DESIGN Experimental pre-test/post-test design. SETTING Kurihama Medical and Addiction Center, Japan. PARTICIPANTS A total of 298 healthy Japanese people age 20 to 24 years. MEASUREMENTS Participants underwent an intravenous alcohol infusion with a target blood alcohol concentration (BAC) of 0.50 mg/mL for 180 minutes. Participants completed the continuous performance test (CPT) for sustained attention, the paced auditory serial addition test (PASAT) for working memory, and the reaction time test (RTT) for speed/accuracy, along with the blood test for BAC and blood acetaldehyde concentration (BAAC) at baseline, 60 and 180 minutes. FINDINGS Although the target BAC was maintained during the infusion, BAAC peaked at 30 minutes and then gradually declined (η2 = 0.18, P < 0.01). The CPT scores worsened, and the changes between 0 and 60 minutes were correlated with BAAC (correct detection, η2 = 0.09, P < 0.01; r = -0.34, P < 0.01; omission errors, η2 = 0.08, P < 0.01; r = 0.34, P < 0.01). PASAT scores improved through 180 minutes, whereas the changes between 0 and 60 minutes were negatively correlated with BAAC (task one, η2 = 0.02, P < 0.01; r = -0.25, P < 0.01; task two, η2 = 0.03, P < 0.01; r = -0.28, P < 0.01). Although RTTs worsened, they were not associated with BAC or BAAC. None of these comparisons maintained the time effect after controlling for body height. CONCLUSIONS Acetaldehyde exposure following acute intravenous alcohol appears to have a negative impact on sustained attention and working memory, whereas there seems to be only a minor effect of moderate alcohol concentration on speed and accuracy.
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Affiliation(s)
- Fumihiko Ueno
- National Hospital Organization Kurihama Medical and Addiction Center, Yokosuka, Japan.,Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan.,Multimodal Imaging Group, Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada
| | - Sachio Matsushita
- National Hospital Organization Kurihama Medical and Addiction Center, Yokosuka, Japan
| | - Sachiko Hara
- National Hospital Organization Kurihama Medical and Addiction Center, Yokosuka, Japan
| | - Shunji Oshima
- Core Technology Laboratories, Asahi Quality & Innovations, Ltd., Moriya, Japan
| | - Sungwon Roh
- Department of Psychiatry, Hanyang University College of Medicine, Seoul, South Korea
| | - Vijay A Ramchandani
- Section on Human Psychopharmacology, Division of Intramural Clinical and Biological Research, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Masaru Mimura
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Hiroyuki Uchida
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
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Spinola S, De Vita MJ, Gilmour CE, Maisto SA. Effects of acute alcohol administration on working memory: a systematic review and meta-analysis. Psychopharmacology (Berl) 2022; 239:695-708. [PMID: 35075512 DOI: 10.1007/s00213-022-06060-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 01/03/2022] [Indexed: 01/17/2023]
Abstract
RATIONALE Alcohol-induced executive function deficits may underlie associations between alcohol, self-regulation, and hazardous behaviors. Studies examining the effects of alcohol administration on working memory, an important executive functioning component, have produced mixed findings. Acute alcohol effects on working memory remain unclear. OBJECTIVES We aimed to conduct a systematic review and meta-analysis on the effects of acute alcohol administration on working memory outcomes in studies of healthy adults. METHODS We performed a systematic search of PubMed, MEDLINE, and PsycINFO from inception to June 2021. Studies were included if they met criteria, including healthy participants and administration of quantified alcohol doses against comparative controls. Data extracted included primary working memory outcomes, alcohol doses, and study characteristics. Study quality was assessed using an established validity measure. Working memory task type, alcohol dose, control condition type, and sex/gender composition were explored as moderators using mixed-effects models and meta-regressions. RESULTS Thirty-two studies (1629 participants) provided sufficient data for 54 comparisons between alcohol and control conditions. Random-effects meta-analysis indicated that alcohol administration produced significant, small- to medium-sized working memory decrements (g [95% CI] = - 0.300 [- 0.390 to - 0.211], p < 0.001). Moderation analyses suggested that these effects differed as a function of task type, dose, control condition type, and sex/gender composition. The average quality rating across studies was good. CONCLUSIONS Alcohol administration significantly impaired working memory performance, particularly when executive-related manipulation processes were involved. Future research is needed to investigate how alcohol-induced working memory impairments relate to compromised self-regulation, hazardous behavior, and negative drinking consequences.
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Affiliation(s)
- Suzanne Spinola
- Department of Psychology, Syracuse University, Syracuse, NY, USA. .,VA Connecticut Healthcare System-West Haven, West Haven, CT, USA. .,Department of Psychiatry, Yale University School of Medicine, New Haven, NY, USA.
| | - Martin J De Vita
- Department of Psychology, Syracuse University, Syracuse, NY, USA.,Department of Behavioral Health, Brooke Army Medical Center, San Antonio, TX, USA
| | - Christina E Gilmour
- Department of Psychology, Syracuse University, Syracuse, NY, USA.,Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, USA
| | - Stephen A Maisto
- Department of Psychology, Syracuse University, Syracuse, NY, USA
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Cofresí RU, Watts AL, Martins JS, Wood PK, Sher KJ, Cowan N, Miyake A, Bartholow BD. Acute effect of alcohol on working memory updating. Addiction 2021; 116:3029-3043. [PMID: 33822441 PMCID: PMC8492486 DOI: 10.1111/add.15506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 12/02/2020] [Accepted: 03/24/2021] [Indexed: 11/29/2022]
Abstract
AIMS To examine the acute effects of alcohol on working memory (WM) updating, including potential variation across the ascending limb (AL) and descending limb (DL) of the blood alcohol concentration (BAC) time-course. DESIGN A two-session experiment in which participants were randomly assigned to one of three beverage conditions [alcohol (males: 0.80 g/kg; females: 0.72 g/kg), active placebo (0.04 g/kg) or non-alcohol control (tonic)] and one of two BAC limb testing conditions (AL and DL or DL-only) for the second session, yielding a 3 (beverage) × 2 (time-points tested) × 3 (time-point) mixed factorial design with repeated measures on the latter factor. One of the repeated assessments is 'missing by design' in the DL-only condition. SETTING A psychology laboratory at the University of Missouri campus in Columbia, MO, USA. PARTICIPANTS Two hundred thirty-one community-dwelling young adults (51% female; aged 21-34 years) recruited from Columbia, MO, USA, tested between 2011 and 2013. MEASUREMENTS Latent WM updating performance as indexed by shared variance in accuracy on three WM updating tasks (letter memory, keep track, spatial 2-back) at three time-points. FINDINGS Multi-group modeling of latent WM updating indicated that performance among participants who consumed placebo or control beverages improved during the second session at time-points corresponding to AL (∆ from baseline in latent mean ± standard error (SE) + 0.5 ± 0.01, P < 0.001) and DL (+ 0.08 ± 0.01, P < 0.001). Alcohol consumption did not impair WM updating (∆ from baseline in latent mean ± SE, at AL: + 0.01 ± 0.01, P = 0.56; at DL: + 0.05 ± 0.01, P < 0.001), but attenuated performance improvements (equality of latent means across beverage groups at AL or DL: Δχ2(1) ≥ 7.53, P < 0.01). CONCLUSIONS Acute alcohol-induced impairment in working memory updating may be limited, but dampening of practice effects by alcohol could interfere with the completion of novel, unpracticed tasks.
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Affiliation(s)
- Roberto U Cofresí
- Department of Psychological Sciences, College of Arts and Sciences, University of Missouri, Columbia, MO, USA
| | - Ashley L Watts
- Department of Psychological Sciences, College of Arts and Sciences, University of Missouri, Columbia, MO, USA
| | - Jorge S Martins
- Department of Psychological Sciences, College of Arts and Sciences, University of Missouri, Columbia, MO, USA
| | - Phillip K Wood
- Department of Psychological Sciences, College of Arts and Sciences, University of Missouri, Columbia, MO, USA
| | - Kenneth J Sher
- Department of Psychological Sciences, College of Arts and Sciences, University of Missouri, Columbia, MO, USA
| | - Nelson Cowan
- Department of Psychological Sciences, College of Arts and Sciences, University of Missouri, Columbia, MO, USA
| | - Akira Miyake
- Department of Psychology and Neuroscience, College of Arts and Sciences, University of Colorado, Boulder, CO, USA
| | - Bruce D Bartholow
- Department of Psychological Sciences, College of Arts and Sciences, University of Missouri, Columbia, MO, USA
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Riedel P, Wolff M, Spreer M, Petzold J, Plawecki MH, Goschke T, Zimmermann US, Smolka MN. Acute alcohol does not impair attentional inhibition as measured with Stroop interference scores but impairs Stroop performance. Psychopharmacology (Berl) 2021; 238:1593-1607. [PMID: 33660080 PMCID: PMC8139883 DOI: 10.1007/s00213-021-05792-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 02/04/2021] [Indexed: 11/24/2022]
Abstract
RATIONALE Inhibition is a core executive function and refers to the ability to deliberately suppress attention, behavior, thoughts, and/or emotions and instead act in a specific manner. While acute alcohol exposure has been shown to impair response inhibition in the stop-signal and Go/NoGo tasks, reported alcohol effects on attentional inhibition in the Stroop task are inconsistent. Notably, studies have operationalized attentional inhibition variably and there has been intra- and inter-individual variability in alcohol exposure. OBJECTIVE This study aimed to examine the acute effects of alcohol on attentional inhibition, considering previous limitations. METHODS In a single-blind, cross-over design, 40 non-dependent participants with a medium-to-high risk drinking behavior performed a Counting Stroop task (CST) under a baseline and an arterial blood alcohol concentration (aBAC) clamp at 80 mg%. Attentional inhibition was assessed as the alteration of reaction times (RT), error rates (ER), and inverse efficiency scores (IES) between incongruent and congruent trials (interference score). Stroop performance was also assessed regardless of trial-type. RESULTS Compared to saline, acute alcohol exposure via an aBAC clamp did not affect CST interference scores but increased RTs and IES in both incongruent and congruent trials. CONCLUSIONS Attentional inhibition (Stroop interference score) was not impaired by clamped moderate alcohol exposure. Acute alcohol impaired Stroop performance evidenced by a general increase in response times. Our findings suggest that response and attentional inhibition do not share the same neurocognitive mechanisms and are affected differently by alcohol. Results could also be explained by automated behaviors known to be relatively unaffected by acute alcohol.
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Affiliation(s)
- P Riedel
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany
- Neuroimaging Center, Technische Universität Dresden, Würzburger Straße 35, 01187, Dresden, Germany
- UCLA Semel Institute for Neuroscience & Human Behavior, David Geffen School of Medicine, 760 Westwood Plaza, Los Angeles, CA, 90024, USA
| | - M Wolff
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany
- Department of General Psychology, Technische Universität Dresden, Zellescher Weg 17, 01069, Dresden, Germany
| | - M Spreer
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - J Petzold
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany
- Neuroimaging Center, Technische Universität Dresden, Würzburger Straße 35, 01187, Dresden, Germany
| | - M H Plawecki
- Department of Psychiatry, Indiana University School of Medicine, 355 West 16th Street, Indianapolis, IN, 46202, USA
| | - T Goschke
- Neuroimaging Center, Technische Universität Dresden, Würzburger Straße 35, 01187, Dresden, Germany
- Department of General Psychology, Technische Universität Dresden, Zellescher Weg 17, 01069, Dresden, Germany
| | - U S Zimmermann
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany
- Department of Addiction Medicine and Psychotherapy, kbo-Isar-Amper-Klinikum München-Ost, Vockestraße 72, 85540, Haar, Germany
| | - M N Smolka
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany.
- Neuroimaging Center, Technische Universität Dresden, Würzburger Straße 35, 01187, Dresden, Germany.
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11
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Gough T, Christiansen P, Rose AK, Hardman CA. The effect of acute alcohol consumption on meal memory and subsequent food intake: Two laboratory experiments. Appetite 2021; 163:105225. [PMID: 33789169 DOI: 10.1016/j.appet.2021.105225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 03/01/2021] [Accepted: 03/18/2021] [Indexed: 11/28/2022]
Abstract
Altering the quality of episodic meal memories has been shown to affect subsequent food intake. Acute alcohol consumption disrupts memory formation and produces short-term overeating. In two studies, we investigated whether alcohol consumption can affect meal-related memories and later food intake. Study 1 (N = 60, 50% male) investigated how consumption of an alcoholic drink (0.5 g/kg) prior to consumption of a lunch meal affected meal memory of that lunch, and later food intake, compared with a placebo-alcohol. Findings revealed that alcohol consumption did not impair meal memory, and did not affect subsequent food intake. Study 2 (N = 72, 50% male) investigated whether, due to alcohol's retrograde facilitation effect (the enhancement of recall due to reduced interference at the point of exposure) consuming alcohol after consumption of a lunch meal could enhance meal memory, compared with when consumed before a lunch meal (both a dosage of 0.6 g/kg), and compared with consumption of a soft drink. Contrary to prediction, alcohol consumed after a lunch meal did not significantly increase meal memory. But, certain types of meal memory were impaired when alcohol was consumed before the meal, compared with consumption of a soft drink. Subsequent food intake did not differ between conditions. Taken together, findings suggest that alcohol intoxication can impair some forms of meal memory recall, likely due to disruption of memory formation during the encoding phase. However, there was no evidence that this impairment contributes towards alcohol-induced overeating.
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Affiliation(s)
- Thomas Gough
- Department of Psychology, University of Liverpool, Eleanor Rathbone Building, Bedford Street South, Liverpool, L69 7ZA, UK.
| | - Paul Christiansen
- Department of Psychology, University of Liverpool, Eleanor Rathbone Building, Bedford Street South, Liverpool, L69 7ZA, UK
| | - Abigail K Rose
- Department of Psychology, University of Liverpool, Eleanor Rathbone Building, Bedford Street South, Liverpool, L69 7ZA, UK; Liverpool Centre for Alcohol Research, Liverpool Health Partners, IC3, Liverpool Science Park, Liverpool, UK
| | - Charlotte A Hardman
- Department of Psychology, University of Liverpool, Eleanor Rathbone Building, Bedford Street South, Liverpool, L69 7ZA, UK
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12
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Acute effects of alcohol on error-elicited negative affect during a cognitive control task. Psychopharmacology (Berl) 2020; 237:3383-3397. [PMID: 32944790 PMCID: PMC7572864 DOI: 10.1007/s00213-020-05619-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/21/2020] [Indexed: 10/23/2022]
Abstract
RATIONALE Alcohol intoxication can dampen negative affective reactions to stressors. Recently, it has been proposed that these acute anxiolytic effects of alcohol may extend to dampening of negative affective reactions to error commission during cognitive control tasks. Nonetheless, empirical verification of this claim is lacking. OBJECTIVES Test the acute effect of alcohol on negative affective reactions to errors during an effort-demanding cognitive control task. METHODS Healthy, young adult social drinkers (N = 96 [49 women], 21-36 years old) were randomly assigned to consume alcohol (0.80 g/kg; n = 33 [15 female]), active placebo (0.04 g/kg; n = 33 [18 women]), or a non-alcoholic control beverage (n = 30 [16 women]) before completing the Eriksen flanker task. Corrugator supercilii (Corr) activation, a psychophysiological index of negative affect, was tracked across the task. Two neurophysiological reactions to errors, the error-related negativity (ERN) and the error positivity (Pe), were also measured. RESULTS Erroneous actions increased Corr activation in the control and (to a lesser extent) placebo groups, but not in the alcohol group. Error-induced Corr activation was coupled to ERN and Pe in the control, but not in the alcohol and placebo groups. Error-induced Corr activation was not coupled to post-error performance adjustments in any group. CONCLUSIONS The ability of alcohol to dampen error-related negative affect was verified. It was also shown that placebo alone can disrupt coupling of affective and (neuro)cognitive reactions to errors. Although its behavioral relevance remains to be demonstrated, more attention should be paid to the role of affect in action monitoring and cognitive control processes.
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13
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Liu C, Tian X, Ling Y, Xu J, Zhou X. Alterations of Metabolites in the Frontal Cortex and Amygdala Are Associated With Cognitive Impairment in Alcohol Dependent Patients With Aggressive Behavior. Front Psychiatry 2020; 11:00694. [PMID: 33061908 PMCID: PMC7518064 DOI: 10.3389/fpsyt.2020.00694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/01/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Alcohol dependence (AD) patients have a high prevalence of aggressive behavior (AB). The frontal cortex and amygdala contains various neurotransmitter systems and plays an important role in AB, which is also associated with cognitive deficits. However, to date, no study has addressed the association of metabolites in the frontal cortex and amygdala with cognitive deficits in Chinese aggressive behavior-alcohol dependent patients(AB-ADs). METHODS We recruited 80 male AD and 40 male healthy controls (HCs), who completed the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), the Modified Overt Aggression Scale (MOAS), and the proton magnetic resonance spectroscopy (¹H MRS) scan using 3.0T Siemens. The ¹H MRS data were automatically fitted with a linear combination model for quantification of metabolite levels of n-acetyl-aspartate (NAA), glutamate (Glu), Choline (Cho) and creatine (Cr). Metabolite levels were reported as ratios to Cr. RESULTS The AB-ADs group scored significantly lower than the non-aggression-alcohol dependent patients (NA-ADs) on these two RBANS subscales (immediate memory and attention function indices). The AB-ADs group showed a significant reduction in NAA/CR ratio in the left frontal cortex and Cho/Cr ratio in the left amygdala, and elevation in Glu/Cr ratio in the bilateral amygdala, compared with the NA-ADs group. The NAA/Cr ratio in the left frontal cortex was positively associated with immediate memory (r=0.60, P<0.05), and the Glu/Cr ratio in the right amygdala was negatively associated with delayed memory (r=-0.44,P<0.05) in AB-ADs group. CONCLUSIONS Metabolite alterations in the frontal cortex and amygdala may be involved in the pathophysiology of AB in AD and its associated cognitive impairment, especially immediate memory and delayed memory.
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Affiliation(s)
- Chang Liu
- Department of Psychiatrics, Brains Hospital of Hunan Province, Changsha, China.,Clinical Medical School, Hunan University of Chinese Medicine, Changsha, China.,Clinical Medical Research Center, Hunan Provincial Mental Behavioral Disorder, Changsha, China
| | - Xuefei Tian
- Department of Psychiatrics, Brains Hospital of Hunan Province, Changsha, China
| | - Yang Ling
- Department of Psychiatrics, The Ninth Hospital of Changsha, Changsha, China
| | - Jiabin Xu
- Department of Psychiatrics, Brains Hospital of Hunan Province, Changsha, China.,Clinical Medical School, Hunan University of Chinese Medicine, Changsha, China.,Clinical Medical Research Center, Hunan Provincial Mental Behavioral Disorder, Changsha, China
| | - Xuhui Zhou
- Department of Psychiatrics, Brains Hospital of Hunan Province, Changsha, China.,Clinical Medical School, Hunan University of Chinese Medicine, Changsha, China.,Clinical Medical Research Center, Hunan Provincial Mental Behavioral Disorder, Changsha, China
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14
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Monds LA, Kloft L, Sauer JD, Honan CA, Palmer MA. No evidence that alcohol intoxication impairs judgments of learning in face recognition. APPLIED COGNITIVE PSYCHOLOGY 2019. [DOI: 10.1002/acp.3534] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lauren A. Monds
- Discipline of Addiction Medicine University of Sydney Sydney New South Wales Australia
| | - Lilian Kloft
- Faculty of Psychology and Neuroscience Maastricht University Maastricht The Netherlands
| | - James D. Sauer
- Department of Psychology, School of Medicine University of Tasmania Hobart Tasmania Australia
| | - Cynthia A. Honan
- Department of Psychology, School of Medicine University of Tasmania Hobart Tasmania Australia
| | - Matthew A. Palmer
- Department of Psychology, School of Medicine University of Tasmania Hobart Tasmania Australia
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15
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Davis KC, Gulati NK, Neilson EC, Stappenbeck CA. Men's Coercive Condom Use Resistance: The Roles of Sexual Aggression History, Alcohol Intoxication, and Partner Condom Negotiation. Violence Against Women 2018; 24:1349-1368. [PMID: 30078371 PMCID: PMC6245582 DOI: 10.1177/1077801218787932] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Condom use resistance (CUR) through coercive tactics is a significant public health concern. The present study investigated CUR risk factors through an alcohol administration experiment using a sexual risk analog with a community sample of male nonproblem drinkers ( N = 321). Utilizing a path analysis framework, results demonstrated that men with more severe sexual aggression histories displayed stronger in-the-moment power and control responses, which was associated with greater coercive CUR and unprotected sex intentions. A significant interaction between sexual aggression history, risk rationale, and alcohol condition also predicted coercive CUR intentions. These findings emphasize the relationship between sexual aggression and sexual risk behaviors and highlight the importance of targeting these constructs in intervention and prevention efforts.
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Affiliation(s)
- Kelly Cue Davis
- 1 University of Washington, Seattle, WA, USA
- 2 Arizona State University, Phoenix, AZ, USA
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16
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Bartholow BD, Fleming KA, Wood PK, Cowan N, Saults JS, Altamirano L, Miyake A, Martins J, Sher KJ. Alcohol effects on response inhibition: Variability across tasks and individuals. Exp Clin Psychopharmacol 2018; 26:251-267. [PMID: 29863383 PMCID: PMC5991490 DOI: 10.1037/pha0000190] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Considerable research has investigated the acute effects of alcohol on response inhibition, but a number of issues remain unresolved. Given that most studies use only a single laboratory task to assess inhibition, it is often difficult to determine whether alcohol's effects are task specific or generalize across measures of the same construct. Moreover, relatively few studies have directly compared effects of alcohol under ascending and descending blood alcohol concentrations (BACs), and those that have often failed to disentangle BAC limb effects from the effects of repeated testing. This study was intended to provide a test of alcohol's effects on behavioral inhibition using multiple laboratory measures in a relatively large sample and comparing effects under ascending and descending BAC. Young adults (N = 216) completed three commonly used inhibition tasks (Stroop, antisaccade, and stop-signal) at baseline and again 1-3 weeks later under one of three beverage conditions (alcohol, placebo or control) and one of two BAC limb conditions (ascending/descending or descending only). Findings indicated considerable specificity in alcohol's effects. Relative to control and placebo conditions, antisaccade performance suffered under both ascending and descending BAC and stop-signal reaction time (RT) suffered only under descending BAC. The Stroop RT interference effect was not affected by alcohol, though alcohol did impair response accuracy on incongruent Stroop trials. Baseline performance moderated effects of alcohol on both antisaccade accuracy and Stroop interference, suggesting the importance of individual differences. The current findings suggest that more specificity is required in characterizing acute effects of alcohol on inhibitory control. (PsycINFO Database Record
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Affiliation(s)
- Bruce D. Bartholow
- Department of Psychological Sciences, University of Missouri, Columbia, MO USA
- Midwest Alcoholism Research Center, St. Louis, MO and Columbia, MO USA
| | - Kimberly A. Fleming
- Department of Psychological Sciences, University of Missouri, Columbia, MO USA
| | - Phillip K. Wood
- Department of Psychological Sciences, University of Missouri, Columbia, MO USA
| | - Nelson Cowan
- Department of Psychological Sciences, University of Missouri, Columbia, MO USA
| | - J. Scott Saults
- Department of Psychological Sciences, University of Missouri, Columbia, MO USA
| | - Lee Altamirano
- Department of Psychology and Neuroscience, University of Colorado, Boulder, CO USA
| | - Akira Miyake
- Department of Psychology and Neuroscience, University of Colorado, Boulder, CO USA
| | - Jorge Martins
- Department of Psychological Sciences, University of Missouri, Columbia, MO USA
| | - Kenneth J. Sher
- Department of Psychological Sciences, University of Missouri, Columbia, MO USA
- Midwest Alcoholism Research Center, St. Louis, MO and Columbia, MO USA
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17
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Hildebrand Karlén M. Interviewing intoxicated witnesses: Memory performance in theory and practice. Scand J Psychol 2017; 59:113-126. [PMID: 29152755 DOI: 10.1111/sjop.12404] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 10/03/2017] [Indexed: 11/27/2022]
Abstract
Memory encoding and recall involving complex, effortful cognitive processes are impaired by alcohol primarily due to impairment of a select few, but crucial, cortical areas. This review shows how alcohol affects some, but not all, aspects of eyewitnesses' oral free recall performance. The principal results, so far, are that: a) free recall reports by intoxicated witnesses (at the investigated BAC-levels) may contain less, but as accurate, information as reports by sober witnesses; b) immediate reports given by intoxicated witnesses may yield more information compared to reports by sober witnesses given after a one week delay; c) an immediate interview may enhance both intoxicated and sober witnesses' ability to report information in a later interview; and d) reminiscence seems to occur over repeated interviews and the new information seems to be as accurate as the previously reported information. Based on this, recommendations are given for future research to enhance understanding of the multifaceted impact of alcohol on witnesses' oral free recall of violent crimes.
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Affiliation(s)
- Malin Hildebrand Karlén
- National Board of Forensic Medicine, Forensic Psychiatric Unit, Gothenburg, Sweden.,Centre for Ethics, Law and Mental Health, The Section of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Sweden
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18
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Evans JR, Schreiber Compo N, Carol RN, Schwartz BL, Holness H, Rose S, Furton KG. Alcohol Intoxication and Metamemory: Little Evidence that Moderate Intoxication Impairs Metacognitive Monitoring Processes. APPLIED COGNITIVE PSYCHOLOGY 2017. [DOI: 10.1002/acp.3373] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | | | | | - Stefan Rose
- University Medical and Forensic Consultants, Inc.; Palm City USA
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19
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Vinader-Caerols C, Duque A, Montañés A, Monleón S. Blood Alcohol Concentration-Related Lower Performance in Immediate Visual Memory and Working Memory in Adolescent Binge Drinkers. Front Psychol 2017; 8:1720. [PMID: 29046656 PMCID: PMC5632669 DOI: 10.3389/fpsyg.2017.01720] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 09/19/2017] [Indexed: 11/21/2022] Open
Abstract
The binge drinking (BD) pattern of alcohol consumption is prevalent during adolescence, a period characterized by critical changes to the structural and functional development of brain areas related with memory and cognition. There is considerable evidence of the cognitive dysfunctions caused by the neurotoxic effects of BD in the not-yet-adult brain. Thus, the aim of the present study was to evaluate the effects of different blood alcohol concentrations (BAC) on memory during late adolescence (18–19 years old) in males and females with a history of BD. The sample consisted of 154 adolescents (67 males and 87 females) that were classified as refrainers if they had never previously drunk alcoholic drinks and as binge drinkers if they had drunk six or more standard drink units in a row for men or five or more for women at a minimum frequency of three occasions in a month, throughout the previous 12 months. After intake of a high acute dose of alcohol by binge drinkers or a control refreshment by refrainers and binge drinkers, subjects were distributed into four groups for each gender according to their BAC: BAC0-R (0 g/L, in refrainers), BAC0-BD (0 g/L, in binge drinkers), BAC1 (0.3 – 0.5 g/L, in binge drinkers) or BAC2 (0.54 – 1.1 g/L, in binge drinkers). The subjects’ immediate visual memory and working memory were then measured according to the Wechsler Memory Scale (WMS-III). The BAC1 group showed lower scores of immediate visual memory but not of working memory, while lower performance in both memories were found in the BAC2 group. Therefore, the brain of binge drinkers with moderate BAC could be employing compensatory mechanisms from additional brain areas to perform a working memory task adequately, but these resources would be undermined when BAC is higher (>0.5 g/L). No gender differences were found in BAC-related lower performance in immediate visual memory and working memory. In conclusion, immediate visual memory is more sensitive than working memory to the neurotoxic effects of alcohol in adolescent binge drinkers of both genders, being a BAC-related lower performance, and without obvious differences between males and females.
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Affiliation(s)
| | - Aránzazu Duque
- Department of Psychobiology, University of Valencia, Valencia, Spain
| | - Adriana Montañés
- Department of Psychobiology, University of Valencia, Valencia, Spain
| | - Santiago Monleón
- Department of Psychobiology, University of Valencia, Valencia, Spain
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20
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Haass-Koffler CL, Akhlaghi F, Swift RM, Leggio L. Altering ethanol pharmacokinetics to treat alcohol use disorder: Can you teach an old dog new tricks? J Psychopharmacol 2017; 31:812-818. [PMID: 28093021 PMCID: PMC5768306 DOI: 10.1177/0269881116684338] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Disulfiram was the first pharmacotherapy approved to treat alcohol use disorder in the 1950s. Disulfiram alters ethanol pharmacokinetics and causes uncomfortable reactions (e.g. headache, tachycardia, nausea, flushing and hypotension) when alcohol is consumed. Subsequently, a better understanding of the neurobiological pathways involved in alcohol use disorder led to the development of other medications (e.g. naltrexone and acamprosate). These neurobiological-based medications act on alcohol use disorder-related phenotypes including craving, stress, and/or withdrawal. The original approach to treat alcohol use disorder, by altering ethanol pharmacokinetics has been much less investigated. Recent research on ethanol pharmacokinetics has shed light on the mechanisms of action underlying alcohol use disorder and how some medications that alter ethanol pharmacokinetics may be helpful in treating alcohol use disorder. This review summarizes and discusses the complex pharmacokinetics of ethanol, and proposes that altering ethanol pharmacokinetics via novel pharmacological approaches may be a viable approach to treat alcohol use disorder.
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Affiliation(s)
- Carolina L. Haass-Koffler
- Center for Alcohol and Addiction Studies, Department of Psychiatry and Human Behavior, Brown University, Providence, RI
- Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, RI
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism and National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD
| | - Fatemeh Akhlaghi
- Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, RI
| | - Robert M. Swift
- Center for Alcohol and Addiction Studies, Department of Psychiatry and Human Behavior, Brown University, Providence, RI
- Veterans Affairs Medical Center, Providence, RI
| | - Lorenzo Leggio
- Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, RI
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism and National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD
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21
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Neilson EC, Eakins DR, Davis KC, Norris J, George WH. Depressive Symptoms, Acute Alcohol Intoxication, and Risk Rationale Effects on Men's Condom Use Resistance. JOURNAL OF SEX RESEARCH 2017; 54:764-775. [PMID: 27547862 PMCID: PMC5526205 DOI: 10.1080/00224499.2016.1217500] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study examined the role of depressive symptoms, acute intoxication, and risk rationale in men's use of condom use resistance (CUR) tactics in an experimental study. Participants included 313 heterosexual male, nonproblem drinkers, ages 21 to 30. Participants were randomized to one of four beverage conditions: no alcohol, placebo, low (.04%) alcohol dose, or high (.08%) alcohol dose. They read an eroticized scenario depicting a consensual sexual encounter with a female partner who requested a condom to prevent either pregnancy or sexually transmitted infections (STIs) (risk rationale) and then indicated their intentions to use 10 different CUR tactics. Hypotheses related to the pharmacological, dosage, and expectancy effects of alcohol were tested in a generalized linear model. In intoxicated (.04% and .08%) men who were given a pregnancy risk rationale, depressive symptoms were associated with stronger intentions to use CUR tactics than in sober (control and placebo) men. Men who received a high alcohol dose (.08%) and who were given a pregnancy risk rationale reported higher intentions to use CUR tactics than those who received a lower alcohol dose (.04%). Findings suggest that the pharmacological effects of alcohol on men's likelihood to resist condoms vary by the saliency of the risk rationale and mood-related variables.
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Affiliation(s)
- Elizabeth C. Neilson
- University of Washington, Department of Psychology, Box 351525, Seattle, WA 98195
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22
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Holland MG, Ferner RE. A systematic review of the evidence for acute tolerance to alcohol - the "Mellanby effect". Clin Toxicol (Phila) 2017; 55:545-556. [PMID: 28277803 DOI: 10.1080/15563650.2017.1296576] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To review the evidence for "the Mellanby effect", that is, whether the response to a given blood alcohol concentration (BAC) is more marked when BAC is rising than at the same concentration when BAC is falling. METHODS We systematically searched the databases EMBASE, Medline, and Scopus up to and including December 2016 using text words "tolerance", "ascending", "descending" or "Mellanby" with Medline term "exp *alcohol/" or "exp *drinking behavior/" or equivalent. Articles were identified for further examination by title or abstract; full text articles were retained for analysis if they dealt with acute (within dose) alcohol tolerance in human subjects and provided quantitative data on both the ascending and descending parts of the BAC-time curve. Reference lists of identified works were scanned for other potentially relevant material. We extracted and analyzed data on the subjective and objective assessment of alcohol effects. RESULTS We identified and screened 386 unique articles, of which 127 full-text articles were assessed; one provided no qualitative results, 62 involved no human study, 25 did not consider acute tolerance within dose, and 13 failed to provide data on both ascending and descending BAC. We extracted data from the 26 remaining articles. The studies were highly heterogeneous. Most were small, examining a total of 770 subjects, of whom 564 received alcohol and were analyzed in groups of median size 10 (range 5-38), sometimes subdivided on the basis of drinking or family history. Subjects were often young white men. Doses of alcohol and rates of administration differed. Performance was assessed by at least 26 different methods, some of which measured many variables. We examined only results of studies which compared results for a given alcohol concentration (C) measured on the ascending limb (Cup) and the descending limb (Cdown) of the BAC-time curve, whether in paired or parallel-group studies. When subjects were given alcohol in more than one session, we considered results from the first session only. Rating at Cdown was better than at Cup for some measures, as expected if the Mellanby effect were operating. For example, subjects rated themselves less intoxicated on the descending limb than at the same concentration on the ascending limb in 12/13 trials including 229 subjects that gave statistically significant results. In 9 trials with a total of 139 subjects, mean difference could be calculated; weighted for study size, it was 29% [range 24-74%]. Willingness to drive was significantly greater in 4 of 6 studies including a total of 105 subjects; weighted mean difference increased by 207% [range 79-300%]. By contrast, measure of driving ability in three groups of a total of 200 trials in 57 subjects showed worse performance by a weighted mean of 96% [range 3-566%]. In three trials that tested inhibitory control (cued go or no-go response times), weighted mean performance was 30% [range 14-65%] worse on the descending limb. CONCLUSIONS The "Mellanby effect" has been demonstrated for subjective intoxication and willingness to drive, both of which are more affected at a stated ethanol concentration when BAC is rising than at the same concentration when BAC is falling. By contrast, objective measures of skills necessary for safe driving, such as response to inhibitory cues and skills measured on driving simulators, were generally worse on the descending part of the BAC-time curve for the same BAC.
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Affiliation(s)
- Michael G Holland
- a Department of Emergency Medicine, Division of Medical Toxicology , SUNY Upstate Medical University and the Upstate New York Poison Center , Syracuse , NY , USA.,b Glens Falls Hospital Center for Occupational Health , Glens Falls , NY , USA.,c Onondaga County Medical Examiner's Office , Syracuse , NY , USA.,d Center for Toxicology and Environmental Health , North Little Rock , AR , USA
| | - Robin E Ferner
- e School of Clinical and Experimental Medicine, College of Medical and Dental Sciences (CMDS) , University of Birmingham , Birmingham , UK.,f West Midlands Centre for Adverse Drug Reactions , City Hospital , Birmingham , UK
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23
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Korucuoglu O, Sher KJ, Wood PK, Saults JS, Altamirano L, Miyake A, Bartholow BD. Acute alcohol effects on set-shifting and its moderation by baseline individual differences: a latent variable analysis. Addiction 2017; 112:442-453. [PMID: 27990739 PMCID: PMC5547892 DOI: 10.1111/add.13684] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 06/22/2016] [Accepted: 10/31/2016] [Indexed: 11/30/2022]
Abstract
AIMS To compare the acute effects of alcohol on set-shifting task performance (relative to sober baseline performance) during ascending and descending limb breath alcohol concentration (BrAC), as well as possible moderation of these effects by baseline individual differences. DESIGN Shifting performance was tested during an initial baseline and a subsequent drinking session, during which participants were assigned randomly to one of three beverage conditions (alcohol, placebo or control) and one of two BrAC limb conditions [ascending and descending (A/D) or descending-only (D-only)]. SETTING A human experimental laboratory on the University of Missouri campus in Columbia, MO, USA. PARTICIPANTS A total of 222 moderate-drinking adults (ages 21-30 years) recruited from Columbia, MO and tested between 2010 and 2013. MEASUREMENTS The outcome measure was performance on set-shifting tasks under the different beverage and limb conditions. Shifting performance assessed at baseline was a key moderator. FINDINGS Although performance improved across sessions, this improvement was reduced in the alcohol compared with no-alcohol groups (post-drink latent mean comparison across groups, all Ps ≤ 0.05), and this effect was more pronounced in individuals with lower pre-drink performance (comparison of pre- to post-drink path coefficients across groups, all Ps ≤ 0.05). In the alcohol group, performance was better on descending compared with ascending limb (P ≤ 0.001), but descending limb performance did not differ across the A/D and D-only groups. CONCLUSIONS Practising tasks before drinking moderates the acute effects of alcohol on the ability to switch between tasks. Greater impairment in shifting ability on descending compared with ascending breath alcohol concentration is not related to task practice.
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Affiliation(s)
- Ozlem Korucuoglu
- University of Missouri, Department of Psychological Sciences, Columbia, MO, USA
| | - Kenneth J. Sher
- University of Missouri, Department of Psychological Sciences, Columbia, MO, USA
- Midwest Alcoholism Research Center, St. Louis, MO and Columbia, MO, USA
| | - Phillip K. Wood
- University of Missouri, Department of Psychological Sciences, Columbia, MO, USA
| | - J. Scott Saults
- University of Missouri, Department of Psychological Sciences, Columbia, MO, USA
| | - Lee Altamirano
- University of Colorado-Boulder, Department of Psychology and Neuroscience, Boulder, CO, USA
| | - Akira Miyake
- University of Colorado-Boulder, Department of Psychology and Neuroscience, Boulder, CO, USA
| | - Bruce D. Bartholow
- University of Missouri, Department of Psychological Sciences, Columbia, MO, USA
- Midwest Alcoholism Research Center, St. Louis, MO and Columbia, MO, USA
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24
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Fernandez GM, Lew BJ, Vedder LC, Savage LM. Chronic intermittent ethanol exposure leads to alterations in brain-derived neurotrophic factor within the frontal cortex and impaired behavioral flexibility in both adolescent and adult rats. Neuroscience 2017; 348:324-334. [PMID: 28257889 DOI: 10.1016/j.neuroscience.2017.02.045] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/08/2017] [Accepted: 02/20/2017] [Indexed: 12/18/2022]
Abstract
Chronic intermittent exposure to ethanol (EtOH; CIE) that produces binge-like levels of intoxication has been associated with age-dependent deficits in cognitive functioning. Male Sprague-Dawley rats were exposed to CIE (5g/kg, 25% EtOH, 13 intragastric gavages) beginning at three ages: early adolescence (postnatal day [PD] 28), mid-adolescence (PD35) and adulthood (PD72). In experiment 1, rats were behaviorally tested following CIE. Spatial memory was not affected by CIE, but adult CIE rats were impaired at acquiring a non-spatial discrimination task and subsequent reversal tasks. Rats exposed to CIE during early or mid-adolescence were impaired on the first reversal, demonstrating transient impairment in behavioral flexibility. Blood EtOH concentrations negatively correlated with performance on reversal tasks. Experiment 2 examined changes in brain-derived neurotrophic factor (BDNF) levels within the frontal cortex (FC) and hippocampus (HPC) at four time points: during intoxication, 24 h after the final EtOH exposure (acute abstinence), 3 weeks following abstinence (recovery) and after behavioral testing. HPC BDNF levels were not affected by CIE at any time point. During intoxication, BDNF was suppressed in the FC, regardless of the age of exposure. However, during acute abstinence, reduced FC BDNF levels persisted in early adolescent CIE rats, whereas adult CIE rats displayed an increase in BDNF levels. Following recovery, neurotrophin levels in all CIE rats recovered. Our results indicate that intermittent binge-like EtOH exposure leads to acute disruptions in FC BDNF levels and long-lasting behavioral deficits. However, the type of cognitive impairment and its duration differ depending on the age of exposure.
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Affiliation(s)
- Gina M Fernandez
- Department of Psychology, Behavioral Neuroscience Program, Binghamton University, State University of New York, United States
| | - Brandon J Lew
- Department of Psychology, Behavioral Neuroscience Program, Binghamton University, State University of New York, United States
| | - Lindsey C Vedder
- Department of Psychology, Behavioral Neuroscience Program, Binghamton University, State University of New York, United States
| | - Lisa M Savage
- Department of Psychology, Behavioral Neuroscience Program, Binghamton University, State University of New York, United States.
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Nelson NG, Suhaidi FA, DeAngelis RS, Liang NC. Appetite and weight gain suppression effects of alcohol depend on the route and pattern of administration in Long Evans rats. Pharmacol Biochem Behav 2016; 150-151:124-133. [DOI: 10.1016/j.pbb.2016.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 10/14/2016] [Accepted: 10/18/2016] [Indexed: 10/20/2022]
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Schofield TP, Unkelbach C, Denson TF. Alcohol consumption increases bias to shoot at Middle Eastern but not White targets. GROUP PROCESSES & INTERGROUP RELATIONS 2016. [DOI: 10.1177/1368430215603461] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Alcohol has been implicated in intergroup aggression and hostility. The effect of consuming alcohol relative to a placebo on hostile cognitive biases toward a social category typically stereotyped as threatening and hostile (i.e., Middle Eastern men) was tested. Undergraduates ( N = 81) consumed either an intoxicating dose of alcohol (BrAC = .05% by vol.) or placebo. Then, they played a shooter game in which they were asked to shoot at targets holding guns, but not at targets holding harmless objects. Half of the targets were White and half were Middle Eastern. As predicted, alcohol consumption, relative to a placebo, increased participants’ bias to shoot Middle Eastern targets, but did not affect the shooter bias against White targets. Findings suggest that alcohol may heighten aggressive biases toward outgroups stereotyped as threatening and hostile.
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Jongen S, Vuurman EFPM, Ramaekers JG, Vermeeren A. The sensitivity of laboratory tests assessing driving related skills to dose-related impairment of alcohol: A literature review. ACCIDENT; ANALYSIS AND PREVENTION 2016; 89:31-48. [PMID: 26802474 DOI: 10.1016/j.aap.2016.01.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 11/06/2015] [Accepted: 01/02/2016] [Indexed: 06/05/2023]
Abstract
Laboratory tests assessing driving related skills can be useful as initial screening tools to assess potential drug induced impairment as part of a standardized behavioural assessment. Unfortunately, consensus about which laboratory tests should be included to reliably assess drug induced impairment has not yet been reached. The aim of the present review was to evaluate the sensitivity of laboratory tests to the dose dependent effects of alcohol, as a benchmark, on performance parameters. In total, 179 experimental studies were included. Results show that a cued go/no-go task and a divided attention test with primary tracking and secondary visual search were consistently sensitive to the impairing effects at medium and high blood alcohol concentrations. Driving performance assessed in a simulator was less sensitive to the effects of alcohol as compared to naturalistic, on-the-road driving. In conclusion, replicating results of several potentially useful tests and their predictive validity of actual driving impairment should deserve further research. In addition, driving simulators should be validated and compared head to head to naturalistic driving in order to increase construct validity.
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Affiliation(s)
- S Jongen
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, The Netherlands.
| | - E F P M Vuurman
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, The Netherlands.
| | - J G Ramaekers
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, The Netherlands.
| | - A Vermeeren
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, The Netherlands.
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Maisto SA, Simons JS. Research on the Effects of Alcohol and Sexual Arousal on Sexual Risk in Men who have Sex with Men: Implications for HIV Prevention Interventions. AIDS Behav 2016; 20 Suppl 1:S158-72. [PMID: 26459332 DOI: 10.1007/s10461-015-1220-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The purpose of this paper was to describe and appraise the research evidence on the effects of acute alcohol intoxication and sexual arousal on sexual risk behaviors in men who have sex with men (MSM) and to examine its implications for design of HIV prevention interventions that target MSM. Toward that end, the paper begins with a discussion of research on sexual arousal in men and alcohol and their acute effects on sexual behaviors. This is followed by a review of empirical evidence on the combined acute effects of alcohol and sexual arousal in heterosexual men (the large majority of studies) and then in MSM. The empirical evidence and related theoretical developments then are integrated to derive implications for developing effective HIV prevention interventions that target MSM.
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Affiliation(s)
- Stephen A Maisto
- Department of Psychology, Syracuse University, 430 Huntington Hall, Syracuse, NY, 13244, USA.
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Distal and Proximal Influences on Men's Intentions to Resist Condoms: Alcohol, Sexual Aggression History, Impulsivity, and Social-Cognitive Factors. AIDS Behav 2016; 20 Suppl 1:S147-57. [PMID: 26156881 DOI: 10.1007/s10461-015-1132-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Recent scientific evidence demonstrates that many young men commonly resist condom use with their female sex partners and that both alcohol intoxication and a history of sexual aggression may increase the risk of condom use resistance (CUR). Using a community sample of heterosexual male non-problem drinkers with elevated sexual risk (N = 311), this alcohol administration study examined the direct and indirect effects of intoxication and sexual aggression history on men's CUR intentions through a sexual risk analogue. State impulsivity, CUR-related attitudes, and CUR-related self-efficacy were assessed as mediators. Results demonstrated that alcohol intoxication directly increased CUR intentions, and sexual aggression history both directly and indirectly increased CUR intentions. These findings highlight the importance of addressing both alcohol use and sexual aggression in risky sex prevention programs, as well as indicate the continued worth of research regarding the intersection of men's alcohol use, sexual aggression, and sexual risk behaviors, especially CUR.
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Bailey K, Bartholow BD, Saults JS, Lust SA. Give me just a little more time: effects of alcohol on the failure and recovery of cognitive control. JOURNAL OF ABNORMAL PSYCHOLOGY 2015; 123:152-67. [PMID: 24661167 DOI: 10.1037/a0035662] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Numerous externalizing behaviors, from aggression to risk taking to drug abuse, stem from impaired cognitive control, including that brought about by the acute effects of alcohol. Although research generally indicates that alcohol impairs cognitive abilities, a close examination of the literature suggests that alcohol's effects are quite variable and likely depend on a number of contextual factors. The purpose of the current study was to characterize the effects of alcohol on cognitive control in terms of neural and behavioral responses to successful and unsuccessful control attempts. Participants were randomly assigned to consume an alcohol (0.80 g/kg ETOH), placebo, or nonalcoholic control beverage prior to completing a cognitive control (flanker) task while event-related brain potentials were recorded. Alcohol reduced the amplitude of the error-related negativity on error trials and increased the posterror compatibility effect in response time. Of particular interest, neural indices of conflict monitoring and performance adjustment (frontal slow wave) were attenuated by alcohol, but only on trials following errors. These functions had recovered, however, by 2 trials after an error. These findings suggest that alcohol's effects on cognitive control are best characterized as impaired (or delayed) recovery following control failures. Implications of these findings for understanding alcohol's effects on behavioral undercontrol are discussed.
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Affiliation(s)
- Kira Bailey
- Department of Psychological Sciences, University of Missouri
| | | | - J Scott Saults
- Department of Psychological Sciences, University of Missouri
| | - Sarah A Lust
- Department of Psychological Sciences, University of Missouri
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Foshee VA, Benefield TS, Puvanesarajah S, Reyes HLM, Haberstick BC, Smolen A, Ennett ST, Suchindran C. Self-regulatory failure and the perpetration of adolescent dating violence: Examining an alcohol use by gene explanation. Aggress Behav 2015; 41:189-203. [PMID: 25052486 DOI: 10.1002/ab.21550] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 06/06/2014] [Indexed: 01/09/2023]
Abstract
Studies report that alcohol use is related to partner violence, but for many, alcohol use does not culminate in violence against partners. Guided by a self-regulatory failure framework, we predicted that alcohol use would be more strongly associated with dating violence perpetration among adolescents with genotypes linked to impulsivity and emotional reactivity. The hypothesis was tested using random coefficient modeling of data from a multi-wave longitudinal study spanning grades 8-12 (ages 13-18) (n = 1,475). Analyses adjusted for multiple testing and race, and the potential for gene by environment correlation was examined. As predicted, alcohol use was more strongly associated with dating violence among adolescents who had a high rather than a low multilocus genetic profile composed of five genetic markers that influence dopamine signaling. Alcohol use was more strongly related to dating violence among boys with long rather than short 5-HTTLPR alleles, the opposite of the prediction. MAOA-uVNTR did not interact with alcohol, but it had a main effect on dating violence by boys in later grades in the expected direction: boys with more low activity alleles perpetrated more dating violence. Exploratory analyses found variation in findings by race. Our findings demonstrate the importance of incorporating genes into etiological studies of adolescent dating violence, which to date has not been done. Aggr. Behav. Aggr. Behav. 42:189-203, 2015. © 2014 Wiley Periodicals, Inc.
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Affiliation(s)
- Vangie A Foshee
- Department of Health Behavior, Gillings School of Global Public Health, The University of North Carolina, Chapel Hill, North Carolina
| | - Thad S Benefield
- Carolina Mammography Registry, Department of Radiology, The University of North Carolina, Chapel Hill, North Carolina
| | - Samantha Puvanesarajah
- Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina, Chapel Hill, North Carolina
| | - Heath Luz McNaughton Reyes
- Department of Health Behavior, Gillings School of Global Public Health, The University of North Carolina, Chapel Hill, North Carolina
| | - Brett C Haberstick
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, Colorado
| | - Andrew Smolen
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, Colorado
| | - Susan T Ennett
- Department of Health Behavior, Gillings School of Global Public Health, The University of North Carolina, Chapel Hill, North Carolina
| | - Chirayath Suchindran
- Department of Biostatistics, Gillings School of Global Public Health, The University of North Carolina, Chapel Hill, North Carolina
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Day AM, Kahler CW, Ahern DC, Clark US. Executive Functioning in Alcohol Use Studies: A Brief Review of Findings and Challenges in Assessment. CURRENT DRUG ABUSE REVIEWS 2015; 8:26-40. [PMID: 25877524 PMCID: PMC4638323 DOI: 10.2174/1874473708666150416110515] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 04/06/2015] [Accepted: 04/09/2015] [Indexed: 11/22/2022]
Abstract
There is a wealth of research about the links between executive functioning (EF) and alcohol use. However, difficulty may arise in interpreting findings because of the variability between studies regarding the specific components of EF measured, as well as the variability of tasks used to examine each EF construct. The current article considers each of these problems within the context of a literature review that focuses on two topics: (1) the efficacy of EF in predicting alcohol use and alcohol-related consequences, and (2) the effect of acute alcohol intoxication on EF task performance. An additional goal was to identify and describe commonly used EF measures with the intention of providing alcohol researchers information on the assessment of different EF domains. Our findings indicate that there is strong evidence supporting a relation between EF difficulties (particularly response inhibition and information updating) and alcohol use, with additional evidence of a significant interaction between EF and implicit associations on alcohol use. In contrast, research supporting a link between set shifting abilities and later alcohol use is scarce. Additionally, this review found evidence of alcohol acutely affecting many EF processes (particularly response inhibition). Overall, there is a need to replicate these findings with commonly used EF tasks (versus developing numerous tasks within individual laboratories) to better advance our understanding of the relation between EF and alcohol use.
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Affiliation(s)
- Anne M Day
- Center for Alcohol and Addiction Studies, Brown University, Box G-S121-4, Providence, RI 02912, USA.
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Abbey A. Responsible integration of biological and psychosocial models: comments on "Genetic associations with intimate partner violence in a sample of hazardous drinking men in batterer intervention programs". Violence Against Women 2014; 20:401-5. [PMID: 24686122 DOI: 10.1177/1077801214528583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Despite research demonstrating that gene expression differs in response to social environmental circumstances, deterministic views of biology are common. Stuart and colleagues (2014) encourage readers to think about genetic factors in the same dynamic and probabilistic manner that they consider other causes of intimate partner violence. Given that participants had co-occurring alcohol problems, future studies should evaluate how different genetic polymorphisms uniquely and synergistically contribute to heavy drinking and aggression under different socio-environmental conditions. Psychological expectancies have a powerful impact on behavior, thus extreme caution is required before labeling people as genetically predisposed to violence.
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34
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Hollien H, Huntley Bahr R, Harnsberger JD. Issues in Forensic Voice. J Voice 2014; 28:170-84. [DOI: 10.1016/j.jvoice.2013.06.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 06/13/2013] [Indexed: 11/25/2022]
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Day AM, Celio MA, Lisman SA, Johansen GE, Spear LP. Acute and chronic effects of alcohol on trail making test performance among underage drinkers in a field setting. J Stud Alcohol Drugs 2014; 74:635-41. [PMID: 23739029 DOI: 10.15288/jsad.2013.74.635] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Alcohol's effects on executive functioning are well documented. Research in this area has provided much information on both the acute and chronic effects of alcohol on processes such as working memory and mental flexibility. However, most research on the acute effects of alcohol is conducted with individuals older than 21 years of age. Using field recruitment methods can provide unique empirical data on the acute effects of alcohol on an underage population. METHOD The current study examined the independent effects of acute alcohol intoxication (measured by breath alcohol content) and chronic alcohol use (measured by years drinking) on a test of visuomotor performance and mental flexibility (Trail Making Test) among 91 drinkers ages 18-20 years recruited from a field setting. RESULTS Results show that breath alcohol predicts performance on Trails B, but not on Trails A, and that years drinking, above and beyond acute intoxication, predicts poorer performance on both Trails A and B. CONCLUSIONS These data suggest that, independent of the acute effects of alcohol, chronic alcohol consumption has deleterious effects on executive functioning processes among underage drinkers. Our discussion focuses on the importance of these data in describing the effect of alcohol on adolescents and the potential for engaging in risky behavior while intoxicated.
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Affiliation(s)
- Anne M Day
- Center for Alcohol and Addiction Studies, Behavioral and Social Sciences, Brown University, Providence, Rhode Island 02912, USA.
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36
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Christoforou Z, Karlaftis MG, Yannis G. Reaction times of young alcohol-impaired drivers. ACCIDENT; ANALYSIS AND PREVENTION 2013; 61:54-62. [PMID: 23332180 DOI: 10.1016/j.aap.2012.12.030] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2011] [Revised: 12/11/2012] [Accepted: 12/20/2012] [Indexed: 06/01/2023]
Abstract
Young individuals who drive under the influence of alcohol have a higher relative risk of crash involvement; as such, the literature has extensively investigated the factors affecting such involvement through both post-accident surveys and simulator experiments. The effects of differentiated breath alcohol concentrations (BrAC) on young driver behavior, however, have been largely unaddressed, mainly as a result of the difficulty in collecting the necessary data. We explore young driver behavior under the influence of alcohol using a driving simulator experiment where 49 participants were subjected to a common pre-defined dose of alcohol consumption. Comparing reaction times before and after consumption allows for interesting insights and suggestions regarding policy interventions. As expected, the results indicate that increased reaction times before consuming alcohol strongly affect post-consumption reaction times, while increased BrAC levels prolong reaction times; a 10% increase in BrAC levels results in a 2% increase in reaction time. Interestingly, individuals with faster alcohol absorption times perform better regardless of absolute BrAC level, while recent meals lead to higher reaction times and regular exercising to lower.
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Affiliation(s)
- Zoi Christoforou
- Department of Transportation Planning and Engineering, School of Civil Engineering, National Technical University of Athens, 5, Iroon Polytechniou, 15773 Zografou Campus, Greece; Department 'City, Environment, Transportation', Ecole des ponts et chaussées, 6&8 avenue Blaise Pascal - Cité Descartes, Champs-sur-Marne, F-77455, Marne-la-Vallée cedex 2, France.
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Lewis B, Nixon SJ. Cognitive flexibility during breath alcohol plateau is associated with previous drinking measures. Alcohol 2013; 47:333-8. [PMID: 23597416 DOI: 10.1016/j.alcohol.2013.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 01/29/2013] [Accepted: 01/29/2013] [Indexed: 11/30/2022]
Abstract
Although the biphasic effects of acute alcohol during ascending and descending Breath Alcohol Concentrations (BrACs) are well described, the plateau period between peak and steadily descending BrACs is generally unrecognized and under-studied by researchers. Naturalistic examinations indicate such periods persist for substantial intervals, with a time frame of onset suggesting BrAC plateaus may co-occur with potentially risky behaviors (e.g., driving). The current pilot study examined neurocognitive performance during this period. Participants were healthy, community-residing moderate drinkers (n = 18). In the first phase of the study, the Digit Symbol Substitution and Trail Making Tasks were administered during BrAC plateau (M = 62 mg/dL). BrACs were negatively correlated with Digit Symbol performance but unrelated to other tasks. In contrast, performance on a derived Trail Making measure of set-shifting was positively associated with the maximum alcohol doses consumed in the preceding 6 months. Phase 2 analyses demonstrated that relationships between previous alcohol experience and cognitive performance were absent among individuals receiving placebo beverages. Taken together, these data suggest a relationship worthy of investigation between previous drinking experiences and cognitive flexibility during the plateau phase.
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Affiliation(s)
- Ben Lewis
- Department of Psychiatry, University of Florida, 100 S. Newell Dr., PO Box 100256, Gainesville, FL 32610, USA.
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Newberry M, Williams N, Caulfield L. Female alcohol consumption, motivations for aggression and aggressive incidents in licensed premises. Addict Behav 2013; 38:1844-51. [PMID: 23261497 DOI: 10.1016/j.addbeh.2012.08.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Revised: 07/16/2012] [Accepted: 08/23/2012] [Indexed: 11/30/2022]
Abstract
Research into the relationship between alcohol and aggression has previously focused on men. However, in recent years there has been an increase in binge drinking and violent crime among women, behaviours which have been labelled 'ladette' culture in the UK. The current study advances the literature in this area by investigating the relationship between alcohol consumption and aggressive behaviour of females in licensed premises, including the type of aggression and motivations for aggressive incidents. Ninety-three female university students completed the Student Alcohol Questionnaire (SAQ; Engs, 2002), the Aggression Questionnaire (Buss & Perry, 1992) and a questionnaire developed to measure self-reported aggressive incidents. Females who had been involved in an aggressive incident reported spending more time on average in licensed premises per week and higher levels of aggression as well as consuming significantly more alcohol on the day of the incident than females who had not been involved in an aggressive incident. Contrary to expectations, however, those who had been involved in an aggressive incident did not report drinking more beer (a male-orientated drink) than those who had not. Verbally aggressive incidents were reported more than physically aggressive incidents, and aggression was commonly motivated by an emotional reaction or to address a grievance. The finding that average alcohol consumption per week was significantly associated with female aggression in licensed premises highlights the importance of developing interventions to reduce alcohol consumption among young females.
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Affiliation(s)
- Michelle Newberry
- Department of Psychology, Sociology and Politics, Sheffield Hallam University, Collegiate Crescent, Sheffield, S10 2BP, UK.
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Fleming KA, Bartholow BD. Alcohol cues, approach bias, and inhibitory control: applying a dual process model of addiction to alcohol sensitivity. PSYCHOLOGY OF ADDICTIVE BEHAVIORS 2013; 28:85-96. [PMID: 23438245 DOI: 10.1037/a0031565] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Low sensitivity to the acute effects of alcohol is a risk factor for heavy drinking and related problems. However, little research has tested process explanations for such effects. The current study tested the hypothesis that low sensitivity is associated with automatic approach biases for alcohol cues, coupled with deficits inhibiting responses in the presence of such cues. Eighty-five participants varying in alcohol sensitivity completed an Alcohol-Approach Avoidance Task and a Cued Go/No-Go Task while event-related potentials were recorded. Low sensitivity (LS) individuals showed evidence of automatic approach tendencies toward alcohol cues in both tasks, and experienced deficits inhibiting prepotent responses cued by alcohol images. Additionally, the event-related potential data indicated that LS individuals experienced more conflict when attempting to inhibit alcohol-cued responses, but not nonalcohol-cued responses, compared with their high-sensitivity counterparts. Together, these data indicate that alcohol cues elicit an approach bias among LS individuals, translating into greater difficulty inhibiting behavioral responses in the presence of such cues, a pattern generally supportive of dual process models of substance use.
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Dry MJ, Burns NR, Nettelbeck T, Farquharson AL, White JM. Dose-related effects of alcohol on cognitive functioning. PLoS One 2012; 7:e50977. [PMID: 23209840 PMCID: PMC3510176 DOI: 10.1371/journal.pone.0050977] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Accepted: 10/30/2012] [Indexed: 11/18/2022] Open
Abstract
We assessed the suitability of six applied tests of cognitive functioning to provide a single marker for dose-related alcohol intoxication. Numerous studies have demonstrated that alcohol has a deleterious effect on specific areas of cognitive processing but few have compared the effects of alcohol across a wide range of different cognitive processes. Adult participants (N = 56, 32 males, 24 females aged 18–45 years) were randomized to control or alcohol treatments within a mixed design experiment involving multiple-dosages at approximately one hour intervals (attained mean blood alcohol concentrations (BACs) of 0.00, 0.048, 0.082 and 0.10%), employing a battery of six psychometric tests; the Useful Field of View test (UFOV; processing speed together with directed attention); the Self-Ordered Pointing Task (SOPT; working memory); Inspection Time (IT; speed of processing independent from motor responding); the Traveling Salesperson Problem (TSP; strategic optimization); the Sustained Attention to Response Task (SART; vigilance, response inhibition and psychomotor function); and the Trail-Making Test (TMT; cognitive flexibility and psychomotor function). Results demonstrated that impairment is not uniform across different domains of cognitive processing and that both the size of the alcohol effect and the magnitude of effect change across different dose levels are quantitatively different for different cognitive processes. Only IT met the criteria for a marker for wide-spread application: reliable dose-related decline in a basic process as a function of rising BAC level and easy to use non-invasive task properties.
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Affiliation(s)
- Matthew J Dry
- School of Psychology, University of Adelaide, Adelaide, South Australia, Australia.
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Fleming KA, Bartholow BD, Sable J, Pearson M, Fabiani M, Gratton G. Effects of alcohol on sequential information processing: evidence for temporal myopia. PSYCHOLOGY OF ADDICTIVE BEHAVIORS 2012; 27:184-90. [PMID: 22642855 DOI: 10.1037/a0028535] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Alcohol Myopia Theory (AMT) posits that alcohol restricts the focus of attention, such that behaviors are determined only by highly salient environmental cues. While AMT is most commonly understood in terms of spatial attention, the present study tested the effects of alcohol in the temporal domain of attention. Seventy-one participants consumed either a placebo beverage or one of two doses of alcohol (0.40g/kg or 0.80g/kg ETOH) before performing an auditory discrimination task while event-related potentials (ERPs) were recorded. Consistent with typical sequential effects, placebo participants showed increased P300 amplitude and slowed behavioral responses when the current target differed from the two-back tone. In contrast, alcohol caused increased P300 and response slowing when the target tone differed from the one-back tone. These findings suggest that alcohol increases the salience of more recently encountered information, consistent with the general tenets of AMT.
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Affiliation(s)
- Kimberly A Fleming
- Department of Psychological Sciences, 210 McAlester Hall, University of Missouri, Columbia, MO 65211, USA.
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Bruce KR, Steiger H, Israel M, Kin NMKNY, Hakim J, Schwartz D, Richardson J, Mansour SA. Effects of acute alcohol intoxication on eating-related urges among women with bulimia nervosa. Int J Eat Disord 2011; 44:333-9. [PMID: 21472752 DOI: 10.1002/eat.20834] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To investigate the effects of acute alcohol intoxication on eating-related urges among women with bulimia nervosa (BN). METHOD Participants included women with BN or normal-weight eating disorder NOS with regular binge/purge symptoms (N = 13), and normal-eater control women (N = 17). Tested individually, the women reported on their mood state as well as on urges to binge eat and engage in various compensatory behaviors, prior to consuming alcohol, and again at 60 and 180 min following the consumption of 1.0 ml kg(-1) alcohol. RESULTS Both groups reported feeling less clearheaded after drinking, as well as initial subjective mood stimulation followed by subsequent mood lowering. In addition, BN participants reported reductions in their urges to binge eat, exercise compulsively, and restrict food intake following alcohol consumption-the urge to purge was not significantly affected. DISCUSSION Among women with BN, alcohol consumption appeared to reduce select eating-related urges with concomitant reductions in attention or concentration.
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Affiliation(s)
- Kenneth R Bruce
- Eating Disorders Program, Douglas Institute, Montreal, Quebec, Canada; Research Centre, Douglas Institute, Montreal, Quebec, Canada.
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Tolerance to the impairing effects of alcohol on the inhibition and activation of behavior. Psychopharmacology (Berl) 2010; 212:465-73. [PMID: 20686751 PMCID: PMC2982863 DOI: 10.1007/s00213-010-1972-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2010] [Accepted: 07/20/2010] [Indexed: 10/19/2022]
Abstract
RATIONALE Moderate doses of alcohol impair response inhibition and slow response activation, and some recent work has shown that during a single dose, response inhibition recovers from the impairing effects of alcohol more slowly than response activation. Evidence for a possible lag in tolerance development to inhibitory versus activational mechanisms suggests that as blood alcohol declines, drinkers' response inhibition might continue to be impaired despite having an unimpaired ability to activate responses; however, this effect has not been studied across repeated doses. OBJECTIVE The present study examined how cross-session tolerance to the impairing effects of alcohol develops differentially between response activation and inhibition. METHODS Thirty-two healthy adults performed a cued go/no-go task that measured response activation and inhibition. The study tested the degree to which response activation and inhibition developed acute and cross-session tolerances to a moderate dose of alcohol (0.65 g/kg) administered twice on separate days. RESULTS Alcohol slowed response activation and decreased response inhibition during both administrations. Response activation displayed acute tolerance to alcohol impairment during both administrations and cross-session tolerance from the first to second administration. By contrast, response inhibition showed no acute or cross-session tolerance. CONCLUSION Biased recovery of response activation over inhibition during a single dose and as doses are repeated could contribute to some of the impulsive behavior commonly observed under alcohol.
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Lyvers M, Tobias-Webb J. Effects of acute alcohol consumption on executive cognitive functioning in naturalistic settings. Addict Behav 2010; 35:1021-8. [PMID: 20655148 DOI: 10.1016/j.addbeh.2010.06.022] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2010] [Revised: 06/14/2010] [Accepted: 06/27/2010] [Indexed: 10/19/2022]
Abstract
Laboratory studies have demonstrated that acute alcohol intoxication can disrupt performance on neuropsychological tests of executive cognitive functioning such as the Wisconsin Card Sorting Test (WCST). However, the generalizability of such findings to typical self-regulated alcohol intake in social settings can be questioned. In the present study, 86 young adults were recruited at Australian bars to perform a computer version of the WCST. Participants displayed blood alcohol concentrations (BACs) across a range from 0 to 0.15%. Although self-report measures of typical alcohol consumption, impulsivity, and frontal lobe related everyday functioning were all intercorrelated in line with other recent findings, multiple regression indicated that these measures did not predict perseverative errors (PE) nor non-perseverative errors (NPE) on the WCST, whereas BAC uniquely predicted PE but not NPE. The results were consistent with a dose-dependent selective disruption of prefrontal cortical functioning by alcohol. There were no differences in performance between participants tested on the ascending limb of the BAC curve and those tested on the descending limb. Alcohol-associated perseveration may reflect the inhibitory effect of alcohol-induced dopamine release in the prefrontal cortex.
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Pre-existent expectancy effects in the relationship between caffeine and performance. Appetite 2010; 55:355-8. [DOI: 10.1016/j.appet.2010.03.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Revised: 03/18/2010] [Accepted: 03/31/2010] [Indexed: 11/21/2022]
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Ray LA, Mackillop J, Monti PM. Subjective responses to alcohol consumption as endophenotypes: advancing behavioral genetics in etiological and treatment models of alcoholism. Subst Use Misuse 2010; 45:1742-65. [PMID: 20590398 PMCID: PMC4703313 DOI: 10.3109/10826084.2010.482427] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Individual differences in subjective responses to alcohol consumption represent genetically mediated biobehavioral mechanisms of alcoholism risk (i.e., endophenotype). The objective of this review is three-fold: (1) to provide a critical review the literature on subjective response to alcohol and to discuss the rationale for its conceptualization as an endophenotype for alcoholism; (2) to examine the literature on the neurobiological substrates and associated genetic factors subserving individual differences in subjective response to alcohol; and (3) to discuss the treatment implications of this approach and to propose a framework for conceptualizing, and systematically integrating, endophenotypes into alcoholism treatment.
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Affiliation(s)
- Lara A Ray
- Department of Psychology, University of California, Los Angeles, CA 90095-1563,USA.
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Drinking and driving: a decrease in executive frontal functions in young drivers with high blood alcohol concentration. Alcohol 2009; 43:657-64. [PMID: 20004344 DOI: 10.1016/j.alcohol.2009.10.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2009] [Revised: 09/30/2009] [Accepted: 10/07/2009] [Indexed: 11/20/2022]
Abstract
This study correlated the executive frontal functions with blood alcohol concentration (BAC) in night drivers in a Brazilian city. Of 592 drivers randomly recruited between December 17, 2005 and May 5, 2006, during nighttime hours on main streets or avenues with intense vehicle traffic in Vitória, Brazil, 444 had the BAC determined by a portable digital breath alcohol analyzer and 389 were submitted to a frontal function examination by a frontal assessment battery (FAB). A high percentage (24.4%) of drivers presented alcohol in their blood. Most of these drivers were male (82%), and nearly half (43.7%) were young adults (aged between 20 and 30 years). The results showed an inverse relationship between the BAC and FAB total scores, with a higher BAC corresponding to a smaller FAB total score, delineating a progressive decrease in frontal function with increasing concentrations of alcohol. The most intriguing result was that alcohol-induced impairment on frontal executive function was particularly important in young adults, and more specifically in the motor programming subset of FAB, an executive function highly involved in driving skills. Considering the worldwide evidence of the high-risk involvement of youth in automobile crashes, the effects of alcohol in young adults need to be more thoroughly examined by cognitive studies, and more direct preventive solutions need to be taken focusing on this age range.
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Krämer UM, Kopyciok RPJ, Richter S, Münte TF. Oscillatory brain activity related to control mechanisms during laboratory-induced reactive aggression. Front Behav Neurosci 2009; 3:46. [PMID: 19949454 PMCID: PMC2783022 DOI: 10.3389/neuro.08.046.2009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Accepted: 10/28/2009] [Indexed: 11/21/2022] Open
Abstract
Aggressive behavior is a common reaction in humans after an interpersonal provocation, but little is known about the underlying brain mechanisms. The present study analyzed oscillatory brain activity while participants were involved in an aggressive interaction to examine the neural processes subserving the associated decision and evaluation processes. Participants were selected from a larger sample because of their high scores in trait aggressiveness. We used a competitive reaction time task that induces aggressive behavior through provocation. Each trial is separated in a decision phase, during which the punishment for the opponent is set, and an outcome phase, during which the actual punishment is applied or received. We observed provocation-related differences during the decision phase in the theta band which differed depending on participants’ aggressive behavior: high provocation was associated with an increased frontal theta response in participants refraining from retaliation, but with reduced theta power in those who got back to the opponent. Moreover, more aggressive decisions after being punished were associated with a decrease of frontal theta power. Non-aggressive and aggressive participants differed also in their outcome-related response: being punished led to an increased frontal theta power compared to win trials in the latter only, pointing to differences in evaluation processes associated with their different behavioral reactions. The data thus support previous evidence for a role of prefrontal areas in the control of reactive aggression and extend behavioral studies on associations between aggression or violence and impaired prefrontal functions.
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Affiliation(s)
- Ulrike M Krämer
- Department of Neuropsychology, Otto-von-Guericke-University Magdeburg, Germany
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Ebel-Lam AP, MacDonald TK, Zanna MP, Fong GT. An Experimental Investigation of the Interactive Effects of Alcohol and Sexual Arousal on Intentions to Have Unprotected Sex. BASIC AND APPLIED SOCIAL PSYCHOLOGY 2009. [DOI: 10.1080/01973530903058383] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Davis KC, George WH, Norris J, Schacht RL, Stoner SA, Hendershot CS, Kajumulo KF. Effects of alcohol and blood alcohol concentration limb on sexual risk-taking intentions. J Stud Alcohol Drugs 2009; 70:499-507. [PMID: 19515289 PMCID: PMC2696290 DOI: 10.15288/jsad.2009.70.499] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2008] [Revised: 04/20/2009] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Although there have been numerous investigations of alcohol's relationship to sexual risk taking, the vast majority of these studies have not examined whether the biphasic nature of alcohol intoxication differentially influences risky sexual decisions. Thus, a laboratory study was conducted to investigate the effects of alcohol consumption and blood alcohol concentration (BAC) limb on sexual risk-taking intentions. METHOD Participants (N = 150; 51.3% male) were randomly assigned to consume alcoholic drinks (target peak BAC = .08%) or nonalcoholic drinks and then completed a hypothetical sexual risk assessment involving an opposite-gender new partner while on either the ascending BAC limb or descending BAC limb. RESULTS Alcohol intoxication resulted in increased sexual risk-taking intentions indirectly through its influence on perceived intoxication and, subsequently, sexual arousal. An interaction of beverage condition and BAC limb condition indicated that alcohol's effects on perceived intoxication varied significantly by limb, with those on the ascending limb reporting greater perceived intoxication than those on the descending limb. CONCLUSIONS Findings suggest that future research and prevention efforts would be better informed through a more comprehensive consideration of BAC limb effects on sexual risk behaviors. Moreover, results indicate that prevention programs should address in-the-moment states, such as perceived intoxication and sexual arousal, in interventions targeting risky sexual decision-making processes.
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Affiliation(s)
- Kelly Cue Davis
- School of Social Work, 4101 15th Ave NE, Box 354900, University of Washington, Seattle, Washington, 98105
| | - William H. George
- School of Social Work, 4101 15th Ave NE, Box 354900, University of Washington, Seattle, Washington, 98105
| | - Jeanette Norris
- School of Social Work, 4101 15th Ave NE, Box 354900, University of Washington, Seattle, Washington, 98105
| | - Rebecca L. Schacht
- School of Social Work, 4101 15th Ave NE, Box 354900, University of Washington, Seattle, Washington, 98105
| | - Susan A. Stoner
- School of Social Work, 4101 15th Ave NE, Box 354900, University of Washington, Seattle, Washington, 98105
| | - Christian S. Hendershot
- School of Social Work, 4101 15th Ave NE, Box 354900, University of Washington, Seattle, Washington, 98105
| | - Kelly F. Kajumulo
- School of Social Work, 4101 15th Ave NE, Box 354900, University of Washington, Seattle, Washington, 98105
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