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Hurzeler TP, Logge W, Watt J, DeMayo MM, Suraev A, McGregor IS, Haber PS, Morley KC. The neurobehavioural effects of cannabidiol in alcohol use disorder: Study protocol for a double-blind, randomised, cross over, placebo-controlled trial. Contemp Clin Trials Commun 2024; 41:101341. [PMID: 39252861 PMCID: PMC11382041 DOI: 10.1016/j.conctc.2024.101341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 07/08/2024] [Accepted: 07/23/2024] [Indexed: 09/11/2024] Open
Abstract
Current treatments for alcohol use disorders (AUD) have limited efficacy. Recently, Cannabidiol (CBD) has been examined in a multitude of clinical settings. Preclinical and clinical results suggest that CBD might be particularly well suited for the treatment of AUD and may reduce alcohol cue and stress-induced craving and alcohol seeking. This study aims to investigate this new pharmacotherapy with a particular focus on neurobiological and physiological indicators of craving. Methods: In this double-blind, within-subject, randomised, placebo-controlled, cross-over study, non-treatment seekers will be randomly allocated to three days of four 200 mg CBD gel capsules (800 mg/day) or placebo, with an 18-day washout period. Cognitive, clinical, and neuroimaging assessments will be completed during these three days. The CBD and placebo assessments will be compared. The primary outcomes are i) BOLD signal as a proxy for regional activity during a cue reactivity and a fear response task measured with functional magnetic resonance imaging (fMRI), ii) heart rate variability and skin conductance levels as a proxy for psychophysiological responses to alcohol stimuli. The secondary outcomes are: i) neurometabolite levels (γ-Aminobutyric acid, ethanol, glutathione, and glutamate + glutamine (combined signal)) using magnetic resonance spectroscopy (MRS); ii) functional connectivity using resting state fMRI (rsfMRI); iii) executive functioning task results; iv) clinical outcomes such as craving, anxiety, and sleep. Discussion: This study will improve the understanding of the mechanisms of action of CBD and provide early signals of efficacy regarding the therapeutic potential of CBD in the treatment of alcohol use disorder. ClinicalTrials.gov Identifier: NCT05387148.
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Affiliation(s)
- Tristan P Hurzeler
- University of Sydney, Faculty of Medicine and Health, Sydney Medical School, NSW, Australia
- Edith Collins Centre for Translational Research, Royal Prince Alfred Hospital, NSW, Australia
| | - Warren Logge
- Edith Collins Centre for Translational Research, Royal Prince Alfred Hospital, NSW, Australia
| | - Joshua Watt
- University of Sydney, Faculty of Medicine and Health, Sydney Medical School, NSW, Australia
- Edith Collins Centre for Translational Research, Royal Prince Alfred Hospital, NSW, Australia
| | - Marilena M DeMayo
- Department of Radiology and Department of Psychiatry, University of Calgary, Calgary, AB, Canada
| | - Anastasia Suraev
- University of Sydney, Lambert Initiative for Cannabinoid Therapeutics, Sydney, NSW, Australia
- University of Sydney, Faculty of Science, School of Psychology, Sydney, NSW, Australia
| | - Iain S McGregor
- University of Sydney, Lambert Initiative for Cannabinoid Therapeutics, Sydney, NSW, Australia
- University of Sydney, Faculty of Science, School of Psychology, Sydney, NSW, Australia
| | - Paul S Haber
- University of Sydney, Faculty of Medicine and Health, Sydney Medical School, NSW, Australia
- Edith Collins Centre for Translational Research, Royal Prince Alfred Hospital, NSW, Australia
| | - Kirsten C Morley
- University of Sydney, Faculty of Medicine and Health, Sydney Medical School, NSW, Australia
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Varga L, Moca VV, Molnár B, Perez-Cervera L, Selim MK, Díaz-Parra A, Moratal D, Péntek B, Sommer WH, Mureșan RC, Canals S, Ercsey-Ravasz M. Brain dynamics supported by a hierarchy of complex correlation patterns defining a robust functional architecture. Cell Syst 2024; 15:770-786.e5. [PMID: 39142285 DOI: 10.1016/j.cels.2024.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 11/01/2023] [Accepted: 07/22/2024] [Indexed: 08/16/2024]
Abstract
Functional magnetic resonance imaging (fMRI) provides insights into cognitive processes with significant clinical potential. However, delays in brain region communication and dynamic variations are often overlooked in functional network studies. We demonstrate that networks extracted from fMRI cross-correlation matrices, considering time lags between signals, show remarkable reliability when focusing on statistical distributions of network properties. This reveals a robust brain functional connectivity pattern, featuring a sparse backbone of strong 0-lag correlations and weaker links capturing coordination at various time delays. This dynamic yet stable network architecture is consistent across rats, marmosets, and humans, as well as in electroencephalogram (EEG) data, indicating potential universality in brain dynamics. Second-order properties of the dynamic functional network reveal a remarkably stable hierarchy of functional correlations in both group-level comparisons and test-retest analyses. Validation using alcohol use disorder fMRI data uncovers broader shifts in network properties than previously reported, demonstrating the potential of this method for identifying disease biomarkers.
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Affiliation(s)
- Levente Varga
- Faculty of Mathematics and Computer Science, Babeș-Bolyai University, Cluj-Napoca, Romania; Faculty of Physics, Babeș-Bolyai University, Cluj-Napoca, Romania; Transylvanian Institute of Neuroscience, Cluj-Napoca, Romania
| | - Vasile V Moca
- Transylvanian Institute of Neuroscience, Cluj-Napoca, Romania
| | - Botond Molnár
- Faculty of Mathematics and Computer Science, Babeș-Bolyai University, Cluj-Napoca, Romania; Faculty of Physics, Babeș-Bolyai University, Cluj-Napoca, Romania; Transylvanian Institute of Neuroscience, Cluj-Napoca, Romania
| | - Laura Perez-Cervera
- Instituto de Neurociencias, Consejo Superior de Investigaciones Científicas, Universidad Miguel Hernández, San Juan de Alicante, Spain
| | - Mohamed Kotb Selim
- Instituto de Neurociencias, Consejo Superior de Investigaciones Científicas, Universidad Miguel Hernández, San Juan de Alicante, Spain
| | - Antonio Díaz-Parra
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Valencia, Spain
| | - David Moratal
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Valencia, Spain
| | - Balázs Péntek
- Faculty of Physics, Babeș-Bolyai University, Cluj-Napoca, Romania
| | - Wolfgang H Sommer
- Institute of Psychopharmacology and Clinic for Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Raul C Mureșan
- Transylvanian Institute of Neuroscience, Cluj-Napoca, Romania; STAR-UBB Institute, Babeș-Bolyai University, Cluj-Napoca, Romania.
| | - Santiago Canals
- Instituto de Neurociencias, Consejo Superior de Investigaciones Científicas, Universidad Miguel Hernández, San Juan de Alicante, Spain.
| | - Maria Ercsey-Ravasz
- Faculty of Physics, Babeș-Bolyai University, Cluj-Napoca, Romania; Transylvanian Institute of Neuroscience, Cluj-Napoca, Romania.
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Logge WB, Haber PS, Hurzeler TP, Towers EE, Morley KC. The effects of N-acetyl cysteine on intrinsic functional connectivity and neural alcohol cue reactivity in treatment-seeking individuals with alcohol use disorder: a preliminary study. Psychopharmacology (Berl) 2024:10.1007/s00213-024-06656-z. [PMID: 39102049 DOI: 10.1007/s00213-024-06656-z] [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] [Received: 09/18/2023] [Accepted: 07/23/2024] [Indexed: 08/06/2024]
Abstract
N-acetyl cysteine (NAC) is a potential pharmacotherapy for alcohol use disorder (AUD), but it is not known whether it modulates neural activation to alcohol cues or intrinsic functional connectivity. We investigated whether NAC attenuates (i) alcohol cue-elicited activation, and (ii) intrinsic functional connectivity compared to placebo in patients with AUD. In this preliminary study, twenty-three individuals (7 females) with moderate-severe AUD received daily NAC (2400 mg/day, n = 9), or a placebo (n = 14) for at least 2 weeks. Participants completed a pre-treatment functional magnetic resonance imaging session (T0) and a post-treatment session (T1) comprising resting-state and visual alcohol cue reactivity task acquisitions. Activation differences between sessions, treatment, and session-by-treatment interaction were assessed. Resting-state functional connectivity examined using 377 node ROI-to-ROIs evaluated whether NAC reduced intrinsic functional connectivity after treatment. There were no differences in alcohol cue reactivity for brain activation or subjective craving between NAC and placebo during treatment or across sessions, or significant interaction. A significant treatment-by-time interaction, with reduced intrinsic connectivity was observed after treatment (T1) for NAC-treated compared to placebo-treated patients in the posterior cingulate node (9, left hemisphere) of the dorsal attentional network and connections to salience, ventral-attentional, somatosensory, and visual-peripheral networks implicated in AUD. NAC reduced intrinsic functional connectivity in patients with moderate-severe AUD after treatment compared to placebo, but did not attenuate alcohol cue-elicited activation. However, the absence of cue reactivity findings may result from low power, rather than the absence of cue reactivity findings associated with NAC. These results provide preliminary evidence that NAC treatment may modulate intrinsic functional connectivity brain activation in patients with alcohol use disorder, but replication in larger studies are required to determine the strength of this effect and any associations with clinical outcomes. Clinical Trials Registration: ClinicalTrials.gov Identifier: NCT03879759.
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Affiliation(s)
- Warren B Logge
- Edith Collins Centre for Translational Research in Alcohol, Drugs and Toxicology, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown, NSW, Australia.
- Specialty of Addiction Medicine, Central Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia.
- Discipline of Addiction Medicine, Lv 6, King George V Building 83-117 Missenden Rd, Camperdown, NSW, 2050, Australia.
| | - Paul S Haber
- Edith Collins Centre for Translational Research in Alcohol, Drugs and Toxicology, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown, NSW, Australia
- Specialty of Addiction Medicine, Central Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia
- Drug Health Services, Sydney Local Health District, Camperdown, NSW, Australia
| | - Tristan P Hurzeler
- Edith Collins Centre for Translational Research in Alcohol, Drugs and Toxicology, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown, NSW, Australia
- Specialty of Addiction Medicine, Central Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia
| | - Ellen E Towers
- Edith Collins Centre for Translational Research in Alcohol, Drugs and Toxicology, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown, NSW, Australia
- Specialty of Addiction Medicine, Central Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia
| | - Kirsten C Morley
- Edith Collins Centre for Translational Research in Alcohol, Drugs and Toxicology, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown, NSW, Australia
- Specialty of Addiction Medicine, Central Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia
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Meredith LR, Burnette EM, Nieto SJ, Du H, Donato S, Grodin EN, Green R, Magill M, Baskerville WA, Ray LA. Testing pharmacotherapies for alcohol use disorder with cue exposure paradigms: A systematic review and quantitative synthesis of human laboratory trial methodology. ALCOHOL, CLINICAL & EXPERIMENTAL RESEARCH 2023; 47:1629-1645. [PMID: 37423771 DOI: 10.1111/acer.15143] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/30/2023] [Accepted: 06/24/2023] [Indexed: 07/11/2023]
Abstract
Alcohol cue exposure is a widely used experimental paradigm for screening pharmacotherapies for alcohol use disorder (AUD). Medication-related reductions in cue-reactivity signal early efficacy and inform medications development. Yet, across trials, the design of cue exposure, parameter testing, and outcome reporting is heterogeneous. This systematic review is a quantitative synthesis of trial methodologies and effect size estimation for AUD medication-related craving and psychophysiological outcomes under the cue exposure paradigm. A PubMed search was conducted on January 3, 2022 based on identified pharmacotherapies for peer-reviewed articles reported in English. Study-level characteristics, including sample descriptors, paradigm design, analytic approach, and Cochrane Risk of Bias, along with descriptive statistics for cue-exposure outcomes, were coded by two independent raters. Study-level effect sizes were estimated for craving and psychophysiological outcomes separately and sample-level effect sizes were calculated for each medication. Thirty-six trials, comprising 1640 participants and testing 19 different medications satisfied eligibility criteria. All studies reported on biological sex (71% male participants on average). The exposure paradigms implemented used in vivo (n = 26), visual (n = 8), and audio script (n = 2) cues. Some trials included means for craving by medication condition in text (k = 7) or figures (k = 18). The quantitative synthesis included 63 effect sizes (craving kes = 47; psychophysiological kes = 16) from 28 unique randomized trials testing 15 medications for effects on cue reactivity. For cue-induced craving, eight medications (kes range: 1-12) demonstrated small-to-medium effects (Cohen's d range: |0.24-0.64|) compared to placebo, with individuals randomized to receive medication reporting lower craving following cue exposure. Recommendations are provided to promote further consilience, so that the utility of cue exposure paradigms can be maximized in the development of effective AUD pharmacotherapies. Future work should explore the predictive utility of medication-related reductions in cue-reactivity on clinical outcomes.
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Affiliation(s)
- Lindsay R Meredith
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
| | - Elizabeth M Burnette
- Brain Research Institute, University of California, Los Angeles, Los Angeles, California, USA
| | - Steven J Nieto
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
| | - Han Du
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
| | - Suzanna Donato
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
| | - Erica N Grodin
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
| | - ReJoyce Green
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Molly Magill
- Center for Alcohol and Addiction Studies, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Wave-Ananda Baskerville
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
| | - Lara A Ray
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
- Brain Research Institute, University of California, Los Angeles, Los Angeles, California, USA
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
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Macatee RJ, Preston TJ, Afshar K, Blaine SK, Schermitzler B. Temporal stability of neurophysiological drug cue reactivity before and after acute stress in cannabis users: A test of incentive sensitization. Drug Alcohol Depend 2023; 247:109862. [PMID: 37062250 DOI: 10.1016/j.drugalcdep.2023.109862] [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] [Received: 11/23/2022] [Revised: 03/02/2023] [Accepted: 03/21/2023] [Indexed: 04/18/2023]
Abstract
BACKGROUND Given increasing rates of Cannabis Use Disorder (CUD), objective measures are needed that can reliably index risk and track cannabis use progression. Based on incentive sensitization models, neurophysiological reactivity to cannabis cues, measured with the electroencephalography-recorded late positive potential (LPP), may be a candidate biomarker. To serve as such, the cannabis cue-elicited LPP must demonstrate adequate retest reliability and sensitivity to cannabis use change. Moreover, incentive sensitization theory suggests that state-level contextual variables, such as acute stress, can impact drug cue reactivity. Therefore, the present study evaluated the three-month retest reliability of the cannabis cue-elicited LPP, recorded before and after a laboratory stress induction, as well as its sensitivity to cannabis use change. METHOD Cannabis and neutral cue-elicited LPPs were measured in 102 adults reporting frequent cannabis use (86 % with current CUD) before and after an acute stress induction at two lab visits three-months apart. Physiological and subjective stress reactivity were also measured. RESULTS Manipulation checks confirmed expected cannabis cue and acute stress effects. Cannabis cue-elicited LPP amplitudes showed significant three-month retest reliability of poor-to-fair through moderate-to-good size. Change in cannabis use frequency significantly predicted change in cannabis cue-elicited LPP amplitudes, particularly at post-stress. CONCLUSION Consistent with incentive sensitization models of addiction, the cannabis cue-elicited LPP demonstrated trait-like, moderate three-month stability and responsivity to change in cannabis use behavior. Greater predictive validity of the post-stress LPP may arise through kindling effects of acute stress on incentive salience-related neural activity, which should be explored in future studies.
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Affiliation(s)
- Richard J Macatee
- Auburn University, Department of Psychological Sciences, 226 Thach Hall, Auburn, AL 36849, USA..
| | - Thomas J Preston
- Auburn University, Department of Psychological Sciences, 226 Thach Hall, Auburn, AL 36849, USA
| | - Kaveh Afshar
- Auburn University, Department of Psychological Sciences, 226 Thach Hall, Auburn, AL 36849, USA
| | - Sara K Blaine
- Auburn University, Department of Psychological Sciences, 226 Thach Hall, Auburn, AL 36849, USA
| | - Brandon Schermitzler
- Auburn University, Department of Psychological Sciences, 226 Thach Hall, Auburn, AL 36849, USA
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Beck A, Ebrahimi C, Rosenthal A, Charlet K, Heinz A. The Dopamine System in Mediating Alcohol Effects in Humans. Curr Top Behav Neurosci 2023. [PMID: 36705911 DOI: 10.1007/7854_2022_415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Brain-imaging studies show that the development and maintenance of alcohol use disorder (AUD) is determined by a complex interaction of different neurotransmitter systems and multiple psychological factors. In this context, the dopaminergic reinforcement system appears to be of fundamental importance. We focus on the excitatory and depressant effects of acute versus chronic alcohol intake and its impact on dopaminergic neurotransmission. Furthermore, we describe alterations in dopaminergic neurotransmission as associated with symptoms of alcohol dependence. We specifically focus on neuroadaptations to chronic alcohol consumption and their effect on central processing of alcohol-associated and reward-related stimuli. Altered reward processing, complex conditioning processes, impaired reinforcement learning, and increased salience attribution to alcohol-associated stimuli enable alcohol cues to drive alcohol seeking and consumption. Finally, we will discuss how the neurobiological and neurochemical mechanisms of alcohol-associated alterations in reward processing and learning can interact with stress, cognition, and emotion processing.
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Affiliation(s)
- Anne Beck
- Faculty of Health, Health and Medical University, Potsdam, Germany
| | - Claudia Ebrahimi
- Department of Psychiatry and Neurosciences, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt- Universität zu Berlin, Berlin, Germany
| | - Annika Rosenthal
- Department of Psychiatry and Neurosciences, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt- Universität zu Berlin, Berlin, Germany
| | - Katrin Charlet
- Department of Psychiatry and Neurosciences, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt- Universität zu Berlin, Berlin, Germany
| | - Andreas Heinz
- Department of Psychiatry and Neurosciences, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt- Universität zu Berlin, Berlin, Germany.
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Gerhardt S, Hoffmann S, Tan H, Gerchen MF, Kirsch P, Vollstädt-Klein S, Kiefer F, Bach P, Lenz B. Neural cue reactivity is not stronger in male than in female patients with alcohol use disorder. Front Behav Neurosci 2022; 16:1039917. [PMID: 36467741 PMCID: PMC9709253 DOI: 10.3389/fnbeh.2022.1039917] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/20/2022] [Indexed: 08/06/2024] Open
Abstract
BACKGROUND Males consume more alcohol than females, and alcohol use disorder (AUD) is more prevalent in males than females. However, females progress faster to AUD. Sex differences in neural alcohol cue reactivity were previously observed in young social drinkers, indicating a role of hypersensitivity to alcohol-related cues in very early stages of addiction. To our knowledge, this is the first study on patients diagnosed with AUD to test sex differences in neural reactivity to alcohol cues in order to widen previous findings. METHODS We analyzed data from previous studies, using a well-established functional magnetic resonance imaging (fMRI) paradigm to compare neural reactivity to alcohol cues between 42 female and 124 male patients with AUD (mean age 45 and 46 years) in predefined regions of interest that were implicated by previous studies (ventral and dorsal striatum as well as caudate, putamen, amygdala, hippocampus, insula, anterior cingulate cortex, and medial prefrontal cortex) using independent samples t-tests. Post-hoc, effect size calculations were performed. RESULTS Throughout all nine regions of interest, we found no statistically significant sex differences in neural reactivity toward alcoholic pictures alone or in comparison to neutral pictures (p > 0.05, FDR-corrected). Post-hoc effect size estimates indicated a magnitude between 0.137 and 0.418 (Hedge's g) on alcohol reactivity to alcohol cues compared to neutral cues and indicate very small to less than medium effect sizes in the direction of higher cue reactivity in female patients. CONCLUSION Previous studies showed sex differences in neural alcohol cue reactivity in younger social and problematic alcohol drinkers, i.e., stronger striatal cue-reactivity in males. After correction for multiple comparisons, we did not observe significant sex differences in a cohort of middle-aged females and males with AUD. Sex differences that are present during early phases of addiction development might disappear at later stages of AUD and might thus be considered as clinically less relevant in patients with more severe AUD.
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Affiliation(s)
- Sarah Gerhardt
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Sabine Hoffmann
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Department of Biostatistics, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Haoye Tan
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Martin Fungisai Gerchen
- Department of Clinical Psychology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Bernstein Center for Computational Neuroscience Heidelberg-Mannheim, Mannheim, Germany
- Department of Psychology, Heidelberg University, Heidelberg, Germany
| | - Peter Kirsch
- Department of Clinical Psychology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Bernstein Center for Computational Neuroscience Heidelberg-Mannheim, Mannheim, Germany
- Department of Psychology, Heidelberg University, Heidelberg, Germany
| | - Sabine Vollstädt-Klein
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Mannheim Center for Translational Neurosciences, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Falk Kiefer
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Mannheim Center for Translational Neurosciences, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Feuerlein Center on Translational Addiction Medicine, Heidelberg University, Heidelberg, Germany
| | - Patrick Bach
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Feuerlein Center on Translational Addiction Medicine, Heidelberg University, Heidelberg, Germany
| | - Bernd Lenz
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Mannheim Center for Translational Neurosciences, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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Cofresí RU, Piasecki TM, Hajcak G, Bartholow BD. Internal consistency and test-retest reliability of the P3 event-related potential (ERP) elicited by alcoholic and non-alcoholic beverage pictures. Psychophysiology 2022; 59:e13967. [PMID: 34783024 PMCID: PMC8724465 DOI: 10.1111/psyp.13967] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/18/2021] [Accepted: 10/26/2021] [Indexed: 02/03/2023]
Abstract
Addiction researchers are interested in the ability of neural signals, like the P3 component of the ERP, to index individual differences in liability factors like motivational reactivity to alcohol/drug cues. The reliability of these measures directly impacts their ability to index individual differences, yet little attention has been paid to their psychometric properties. The present study fills this gap by examining within-session internal consistency reliability (ICR) and between-session test-retest reliability (TRR) of the P3 amplitude elicited by images of alcoholic beverages (Alcohol Cue P3) and non-alcoholic drinks (NADrink Cue P3) as well as the difference between them, which isolates alcohol cue-specific reactivity in the P3 (ACR-P3). Analyses drew on data from a large sample of alcohol-experienced emerging adults (session 1 N = 211, 55% female, aged 18-20 yr; session 2 N = 98, 66% female, aged 19-21 yr). Evaluated against domain-general thresholds, ICR was excellent (M ± SD; r= 0.902 ± 0.030) and TRR was fair (r = 0.706 ± 0.020) for Alcohol Cue P3 and NADrink Cue P3, whereas for ACR-P3, ICR and TRR were poor (r = 0.370 ± 0.071; r = 0.201 ± 0.042). These findings indicate that individual differences in the P3 elicited by cues for ingested liquid rewards are highly reliable and substantially stable over 8-10 months. Individual differences in alcohol cue-specific P3 reactivity were less reliable and less stable. The conditions under which alcohol/drug cue-specific reactivity in neural signals is adequately reliable and stable remain to be discovered.
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Affiliation(s)
| | | | - Greg Hajcak
- Departments of Psychology and Biomedical Sciences, Florida State University
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