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1.
Inquiry ; 61: 469580241237117, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38477304

RESUMO

Effective translation of data to inform real-time patient care is lacking in addiction inpatient settings. The current study presents the optimization of an assessment report that is used by clinicians to individualize treatment. A multi-aim, iterative approach was taken, utilizing an implementation science perspective to arrive at a final version of the assessment report. This occurred at a small inpatient addiction treatment facility. Participants were all available clinical staff (N = 7; female = 71%). A quantitative survey was used for aims 1 and 2 to, respectively, assess motives and context around the report as well as evaluate its design. Aim 3 focused on optimization via semi-structured interviews. Descriptive and modified content analyses were utilized appropriately across aims. This resulted in five versions of the assessment report being created between February 2021 and August 2022, the most recent of which was adapted into patients' electronic medical records. We discuss each version of the report in depth, including clinicians' iterative feedback and researchers' perceived barriers to this translational process. The response rate was 64.3%. The current study highlights a replicable approach for optimizing the translation of assessment data into treatment for patients with disorders of addiction as well as an assessment report that could be utilized by similar facilities with a naturally low sample size.


Assuntos
Hospitalização , Pacientes Internados , Humanos , Feminino , Inquéritos e Questionários
2.
Addiction ; 119(3): 530-543, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38009576

RESUMO

AIMS: To test differential outcomes between three 6-month text-messaging interventions to reduce at-risk drinking in help-seeking adults. DESIGN: A three-arm single-blind randomized controlled trial with 1-, 3-, 6- and 12-month follow-ups. SETTING: United States. A fully remote trial without human contact, with participants recruited primarily via social media outlets. PARTICIPANTS: Seven hundred and twenty-three adults (mean = 39.9 years, standard deviation = 10.0; 62.5% female) seeking to reduce their drinking were allocated to 6 months of baseline 'tailored statically' messaging (TS; n = 240), 'tailored adaptive' messaging (TA; n = 239) or 'drink tracking' messaging (DT; n = 244). INTERVENTIONS: TS consisted of daily text messages to reduce harmful drinking that were tailored to demographics and alcohol use. TA consisted of daily, tailored text messages that were also adapted based on goal achievement and proactive prompts. DT consisted of a weekly assessment for self-reported drinking over the past 7 days. MEASUREMENTS: The primary outcome measure was weekly sum of standard drinks (SSD) at 6-month follow-up. Secondary outcome measures included drinks per drinking day (DDD), number of drinking days (NDD) per week and heavy drinking days (HDD) at 1-, 3-, 6- and 12-month follow-ups. FINDINGS: At 6 months, compared with DT, TA resulted in significant SSD reductions of 16.2 (from 28.7 to 12.5) drinks [adjusted risk ratio (aRR) = 0.80, 95% confidence interval (CI) = 0.71, 0.91] using intent-to-treat analysis. TA also resulted in significant improvements in DDD (aRR = 0.84; 95% CI = 0.77-0.92) and drinking days per week (b = -0.39; 95% CI = -0.67, -0.10), but not HDD compared with DT at 6 months. TA was not significantly different from TS at any time-point, except DDD at 6 months. All groups made improvements in SSD at 12-month follow-up compared with baseline with an average reduction of 12.9 drinks per week across groups. CONCLUSIONS: Automated tailored mobile messaging interventions are scalable solutions that can reduce weekly alcohol consumption in remote help-seeking drinkers over time.


Assuntos
Alcoolismo , Envio de Mensagens de Texto , Adulto , Humanos , Feminino , Masculino , Método Simples-Cego , Motivação , Consumo de Bebidas Alcoólicas/prevenção & controle
3.
Subst Abuse Rehabil ; 14: 119-130, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37954500

RESUMO

Background: Quality training is an oft-cited barrier to effective implementation and ongoing delivery of high-quality evidence-based practice (EBP) across fields. This is especially true in the addiction field, but there is little cited evidence for optimal methods to improve EBP in inpatient addiction facilities with minimal resources. Objective: The current paper focuses on evaluating the state of our facility's group CBT manual and clinical training on the manual in a "realistic" (ie, non-RCT, non-grant-funded) inpatient addiction treatment setting. Methods: Five full-time clinicians volunteered to take part in the study (woman = 60%; Mage = 36.20 years). The study involved a mix of semi-structured interviews and surveys designed to measure seven outcomes (barriers, feasibility, useability, appropriateness, acceptability, burden, trialability). Results: Three themes emerged from the data that impacted the group CBT manual: training, timing, and functionality. Addressing these themes allowed for a new, optimal manual and training procedure to be put into place. Conclusion: The current study highlights that under-resourced inpatient addiction facilities can still methodically utilize implementation approaches to study their EBP, namely CBT. Such an approach will ensure that the highest quality care is being delivered to patients and actively addresses known training barriers that prevent proper EBP delivery.

4.
Drug Alcohol Depend Rep ; 5: 100108, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36247931

RESUMO

Background: The widespread shift from in-person to Telehealth services during the Covid-19 pandemic irreversibly shifted the landscape of outpatient substance use treatment. This shift was necessitated by health, rather than data-driven, reasons. As we reflect on whether to continue providing Telehealth services moving forward, we require empirical support on the effectiveness of Telehealth services (compared to in-person services) in terms of patient outcomes, such as Quality of Life (QOL), to support this decision. Objective: To present data from a pilot project comparing changes in QOL across patients receiving outpatient in-person versus Telehealth substance use treatment in five clinics across New York State. Method: To retrospectively compare total self-reported QOL scores from admission to 3-months later utilizing the Quality-of-Life Enjoyment and Satisfaction scale during in-person (pre-pandemic, n = 298) and Telehealth (pandemic, n = 316) services with a mixed repeated measures ANOVA. Results: Self-reported QOL scores significantly improved across the first three months, regardless of treatment modality. Conclusion: Telehealth and in-person treatment appear comparable on QOL outcomes over the first 3 months of outpatient treatment. Both modalities are associated with improved QOL scores. Scientific significance: These preliminary findings provide evidence that Telehealth services are associated with positive patient outcomes and appear comparable to QOL outcomes among patients receiving in-person services. Future directions include further assessment of additional clinical outcomes and investigation into causal mechanisms.

5.
Artigo em Inglês | MEDLINE | ID: mdl-36303709

RESUMO

Introduction: Individuals with alcohol use disorder (AUD) who seek help to reduce their drinking are expected to vary with respect to drinking goal, with some choosing abstinence and others moderation. The present research explored whether drinking goals vary day to day among individuals with AUD planning to enter treatment and the relationship of specific daily goals to actual drinking behavior in daily life. Methods: Participants were 153 individuals with AUD who enrolled in a study of stepped care brief interventions and completed smartphone momentary assessments in daily life. Drinking goals and number of standard drinks consumed were reported daily for 21 consecutive days after receiving brief advice but prior to assignment to further treatment. Daily drinking goals were coded as (a) complete abstinence (b) moderation, i.e., 2 or fewer standard drinks, or (c) other. Mixed-effects models nested daily drinking goals within individuals to consider both individual and daily patterns in daily goal setting. Results: Complete abstinence was the most common daily drinking goal and showed greater day-to-day stability than setting a moderation goal. Setting an abstinence goal in the morning was also most successful in limiting alcohol consumption later that day, relative to other goals. Those individuals who set more abstinence goals, however, were also those who drank more per drinking occasion. Conclusions: Findings support the clinical benefit of mapping daily goal setting and strategizing for specific circumstances. Future research may track the relation of daily drinking goals to successful goal achievement during treatment and compare to overall treatment goals.

6.
J Clin Med ; 11(12)2022 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-35743326

RESUMO

The profound economic burden of schizophrenia is due, in part, to the negative symptoms of the disease, which can severely limit daily functioning. There is much debate in the field regarding their measurement and classification and there are no FDA-approved treatments for negative symptoms despite an abundance of research. 3,4-Methylenedioxy methamphetamine (MDMA) is a schedule I substance that has emerged as a novel therapeutic given its ability to enhance social interactions, generate empathy, and induce a state of metaplasticity in the brain. This review provides a rationale for the use of MDMA in the treatment of negative symptoms by reviewing the literature on negative symptoms, their treatment, MDMA, and MDMA-assisted therapy. It reviews recent evidence that supports the safe and potentially effective use of MDMA to treat negative symptoms and concludes with considerations regarding safety and possible mechanisms of action.

7.
Behav Pharmacol ; 33(4): 255-265, 2022 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-35438671

RESUMO

One potential medication for treating methamphetamine use disorder is the opioid antagonist naltrexone (NLTX). Despite encouraging preclinical findings, the results of clinical studies have been mixed. The primary aim of the current trial was to examine the effects of acute NLTX pretreatment on the subjective and reinforcing effects of intranasal methamphetamine. Nonmedical psychostimulant users completed outpatient testing sessions in which they received oral placebo (0 mg) or NLTX (50 mg) before intranasal methamphetamine (30 mg/70 kg). Primary outcome measures were peak positive subjective effects (e.g. drug 'Liking') assessed on a visual analog scale (0-100), and methamphetamine self-administration using an operant self-administration task. Participants also completed a probabilistic categorization task to assess reward and punishment learning sensitivity. Complete data were available from 13 male and 1 transgender (male-to-female) participant (age: 33.4 ± 7.6 years). Intranasal methamphetamine significantly increased subjective ratings of drug 'Liking', 'Good Effect' and 'High' from baseline (P's < 0.01), but did not significantly vary as a function of placebo or NLTX pretreatment. Similarly, methamphetamine self-administration did not vary between the placebo and NLTX pretreatment conditions. This sample did not demonstrate a significant 'bias' in learning from positive and negative outcomes (i.e. reward and punishment sensitivity), and reward/punishment sensitivity was not correlated with the effects of methamphetamine or the effects of NLTX on methamphetamine. The current study argues against the use of NLTX as a stand-alone medication for treating methamphetamine use disorder.


Assuntos
Estimulantes do Sistema Nervoso Central , Metanfetamina , Adulto , Estimulantes do Sistema Nervoso Central/farmacologia , Método Duplo-Cego , Feminino , Humanos , Masculino , Metanfetamina/efeitos adversos , Naltrexona/farmacologia , Punição , Recompensa
8.
Cannabis ; 5(1): 18-29, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-37287664

RESUMO

Objective: Some adverse cannabis effects are greater in individuals on the psychosis spectrum compared to healthy individuals. We have previously reported that smoked cannabis acutely worsened psychotic- like states and reduced cognitive performance selectively in cannabis users at clinical high-risk (CHR) for psychosis. The objective of the present study was to further investigate the acute effects of cannabis on cognition and reward processing in CHR cannabis users. Methods: Six CHR cannabis users and six psychiatrically-healthy cannabis users comparable in intellectual, demographic, and cannabis use characteristics (including nontreatment-seeking status), participated in the study. Objective and subjective measures of cognition and cannabis reward, were completed before and after smoking half of an active (5.5% Δ9tetrahydrocannabinol [Δ9-THC]) or half of a placebo (0.0% Δ9-THC) cannabis cigarette, under randomized/double-blind conditions. Repeated measures ANOVA tested main effects of drug condition (active vs. placebo) and/or the drug condition × time (baseline vs. post-administration) interactions; groups were analyzed separately due to the small sample size. Results: CHR participants exhibited evidence of decreased objective response inhibition and aversive intoxication following active cannabis, relative to placebo. Psychomotor speed and cannabis-related attentional bias were also affected by cannabis intoxication. No such effects were observed in psychiatrically-healthy cannabis users. Conclusion: These findings provide further preliminary evidence of a deleterious cognitive and reward- related response to cannabis in individuals with preexisting risk for psychosis.

9.
J Subst Abuse Treat ; 123: 108264, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33612197

RESUMO

BACKGROUND: Adaptive interventions, sometimes referred to as "stepped care", are those interventions in which the type or dosage of treatment offered to patients is tailored to baseline clinical presentation and then adjusted over time in response to patient progress or lack thereof. Currently, no adaptive brief interventions exist specifically for alcohol use disorder (AUD). METHOD: This study used a sequential multiple assignment randomized trial design with 160 individuals with AUD recruited both locally and nationally who had a goal to reduce or abstain from drinking. Participants received brief advice (BA) and then the study reassessed them three weeks later; the study randomized those who did not respond to BA, defined as reducing their drinking to low-risk guidelines, to two session of motivational interviewing (MI) or more BA. The study then reassessed participants at week 8. The study re-randomized nonresponders to receive either MI alone or MI plus behavioral self-control therapy (BSCT), also referred to as coping skills therapy, and evaluated participants at week 13. RESULTS: Overall, participants receiving any BSCT made the greatest reductions in drinking. Participants who received MI at week 4 and BSCT at week 8 outperformed all other groups. CONCLUSION: Findings reveal that prolonged treatment, more sessions, and/or a specific combination of MI and BSCT provided optimal outcomes. Future research should determine whether such an algorithm holds across heterogenous groups of individuals with AUD.


Assuntos
Alcoolismo , Entrevista Motivacional , Adaptação Psicológica , Consumo de Bebidas Alcoólicas , Alcoolismo/terapia , Humanos , Motivação
11.
JMIR Mhealth Uhealth ; 9(1): e25018, 2021 01 22.
Artigo em Inglês | MEDLINE | ID: mdl-33480854

RESUMO

BACKGROUND: The classic Marshmallow Test, where children were offered a choice between one small but immediate reward (eg, one marshmallow) or a larger reward (eg, two marshmallows) if they waited for a period of time, instigated a wealth of research on the relationships among impulsive responding, self-regulation, and clinical and life outcomes. Impulsivity is a hallmark feature of self-regulation failures that lead to poor health decisions and outcomes, making understanding and treating impulsivity one of the most important constructs to tackle in building a culture of health. Despite a large literature base, impulsivity measurement remains difficult due to the multidimensional nature of the construct and limited methods of assessment in daily life. Mobile devices and the rise of mobile health (mHealth) have changed our ability to assess and intervene with individuals remotely, providing an avenue for ambulatory diagnostic testing and interventions. Longitudinal studies with mobile devices can further help to understand impulsive behaviors and variation in state impulsivity in daily life. OBJECTIVE: The aim of this study was to develop and validate an impulsivity mHealth diagnostics and monitoring app called Digital Marshmallow Test (DMT) using both the Apple and Android platforms for widespread dissemination to researchers, clinicians, and the general public. METHODS: The DMT app was developed using Apple's ResearchKit (iOS) and Android's ResearchStack open source frameworks for developing health research study apps. The DMT app consists of three main modules: self-report, ecological momentary assessment, and active behavioral and cognitive tasks. We conducted a study with a 21-day assessment period (N=116 participants) to validate the novel measures of the DMT app. RESULTS: We used a semantic differential scale to develop self-report trait and momentary state measures of impulsivity as part of the DMT app. We identified three state factors (inefficient, thrill seeking, and intentional) that correlated highly with established measures of impulsivity. We further leveraged momentary semantic differential questions to examine intraindividual variability, the effect of daily life, and the contextual effect of mood on state impulsivity and daily impulsive behaviors. Our results indicated validation of the self-report sematic differential and related results, and of the mobile behavioral tasks, including the Balloon Analogue Risk Task and Go-No-Go task, with relatively low validity of the mobile Delay Discounting task. We discuss the design implications of these results to mHealth research. CONCLUSIONS: This study demonstrates the potential for assessing different facets of trait and state impulsivity during everyday life and in clinical settings using the DMT mobile app. The DMT app can be further used to enhance our understanding of the individual facets that underlie impulsive behaviors, as well as providing a promising avenue for digital interventions. TRIAL REGISTRATION: ClinicalTrials.gov NCT03006653; https://www.clinicaltrials.gov/ct2/show/NCT03006653.


Assuntos
Avaliação Momentânea Ecológica , Comportamento Impulsivo , Aplicativos Móveis/normas , Telemedicina , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Autorrelato , Autocontrole
12.
Drug Alcohol Rev ; 40(5): 864-868, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33140460

RESUMO

INTRODUCTION AND AIMS: Impulsivity may be a risk factor that increases vulnerability to nicotine dependence. However, nicotine exposure itself may directly increase impulsivity. This is a secondary analysis of the first study in a controlled laboratory setting, which assessed the effects of nicotine administration (acute and repeated) and exposure to smoking cues on behavioural impulsivity in humans (ClinicalTrials.gov Identifier: NCT01395797). DESIGN AND METHODS: Twenty-seven smokers completed three tasks to assess behavioural impulsivity (the Immediate Memory Task and the Delayed Memory Task assessing response initiation, and the GoStop Task assessing response inhibition) following: (i) 4 days of cigarette smoking (nicotinised or denicotinised cigarette); (ii) acute cigarette smoking (nicotinised); and (iii) exposure to smoking-related cues. RESULTS: Four days of nicotinised cigarette smoking (vs. denicotinised) did not significantly increase Immediate Memory Task, Delayed Memory Task and GoStop scores. However, acute cigarette smoking increased GoStop impulsivity, but only following 4 days of smoking nicotinised cigarettes (P < 0.05). Exposure to smoking-related cues had no statistically significant effect on impulsivity. DISCUSSION AND CONCLUSIONS: Our results suggest that repeated nicotine exposure may sensitise subsequent acute nicotine effects on behavioural impulsivity in heavy smokers.


Assuntos
Fumar Cigarros , Tabagismo , Sinais (Psicologia) , Humanos , Comportamento Impulsivo , Fumar
13.
Eur J Nucl Med Mol Imaging ; 47(10): 2417-2428, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32055965

RESUMO

BACKGROUND: Lithium, one of the few effective treatments for bipolar depression (BPD), has been hypothesized to work by enhancing serotonergic transmission. Despite preclinical evidence, it is unknown whether lithium acts via the serotonergic system. Here we examined the potential of serotonin transporter (5-HTT) or serotonin 1A receptor (5-HT1A) pre-treatment binding to predict lithium treatment response and remission. We hypothesized that lower pre-treatment 5-HTT and higher pre-treatment 5-HT1A binding would predict better clinical response. Additional analyses investigated group differences between BPD and healthy controls and the relationship between change in binding pre- to post-treatment and clinical response. Twenty-seven medication-free patients with BPD currently in a depressive episode received positron emission tomography (PET) scans using 5-HTT tracer [11C]DASB, a subset also received a PET scan using 5-HT1A tracer [11C]-CUMI-101 before and after 8 weeks of lithium monotherapy. Metabolite-corrected arterial input functions were used to estimate binding potential, proportional to receptor availability. Fourteen patients with BPD with both [11C]DASB and [11C]-CUMI-101 pre-treatment scans and 8 weeks of post-treatment clinical scores were included in the prediction analysis examining the potential of either pre-treatment 5-HTT or 5-HT1A or the combination of both to predict post-treatment clinical scores. RESULTS: We found lower pre-treatment 5-HTT binding (p = 0.003) and lower 5-HT1A binding (p = 0.035) were both significantly associated with improved clinical response. Pre-treatment 5-HTT predicted remission with 71% accuracy (77% specificity, 60% sensitivity), while 5-HT1A binding was able to predict remission with 85% accuracy (87% sensitivity, 80% specificity). The combined prediction analysis using both 5-HTT and 5-HT1A was able to predict remission with 84.6% accuracy (87.5% specificity, 60% sensitivity). Additional analyses BPD and controls pre- or post-treatment, and the change in binding were not significant and unrelated to treatment response (p > 0.05). CONCLUSIONS: Our findings suggest that while lithium may not act directly via 5-HTT or 5-HT1A to ameliorate depressive symptoms, pre-treatment binding may be a potential biomarker for successful treatment of BPD with lithium. CLINICAL TRIAL REGISTRATION: PET and MRI Brain Imaging of Bipolar Disorder Identifier: NCT01880957; URL: https://clinicaltrials.gov/ct2/show/NCT01880957.


Assuntos
Transtorno Bipolar , Transtorno Bipolar/diagnóstico por imagem , Transtorno Bipolar/tratamento farmacológico , Encéfalo/metabolismo , Humanos , Lítio/uso terapêutico , Tomografia por Emissão de Pósitrons , Serotonina , Proteínas da Membrana Plasmática de Transporte de Serotonina/metabolismo
14.
Exp Clin Psychopharmacol ; 28(6): 677-687, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31971419

RESUMO

Many individuals with alcohol use disorder (AUD) prefer a goal of moderation, because they do not see their drinking as causing severe enough consequences to merit abstinence. Given that individuals attempting to moderate will continue to put themselves in contexts where drinking occurs, understanding how distinct external alcohol cues prompt craving is important for implementing the optimal treatments for individuals with AUD. Using data from a randomized controlled trial of stepped care brief interventions for AUD, this study explored the relationship between drinking contexts and craving in individuals attempting to moderate their drinking using ecological momentary assessment (EMA). At baseline, participants were asked to prospectively identify drinking contexts that were particularly likely to elicit intense craving and heavy drinking, called highly valued drinking contexts (HVCs). During EMA, participants were asked to report three times a day (morning, afternoon, evening) on their non-mutually exclusive contexts and their level of craving. Using multilevel modeling, all drinking contexts were tested as concurrent predictors of craving across the 84 days of the study. Next, AUD severity was tested as a moderator of HVC on craving. Results demonstrated that being in an HVC corresponded to greater reports of any craving and intensity of craving, over and above the influences of several other contextual factors (e.g., negative affect and already drinking). AUD severity significantly moderated HVC's impact on any craving, such that greater AUD severity potentiated HVC's already high odds of any craving. Implications for treatments for individuals with AUD are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).


Assuntos
Consumo de Bebidas Alcoólicas/psicologia , Alcoolismo/psicologia , Fissura , Adulto , Avaliação Momentânea Ecológica , Feminino , Humanos , Masculino
15.
Addict Behav Rep ; 9: 100169, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31193767

RESUMO

OBJECTIVE: This study examined learning functions in short-term cocaine users and control participants. METHOD: Seventeen active cocaine users (reporting 3.5 mean years of cocaine use) and seventeen non-cocaine-using controls (with similar reported levels of alcohol and marijuana use) were compared on tasks measuring different aspects of learning. RESULTS: The cocaine users performed more poorly on the Weather Prediction and List-Learning tasks, as well as supplementary executive and psychomotor function tasks, than controls. CONCLUSIONS: Individuals with a relatively short duration of cocaine use exhibited moderate weaknesses in probabilistic category learning, verbal learning and psychomotor functions, relative to controls. These weaknesses may underpin difficulty in learning from the probabilistic consequences of behavior and hinder the ability to respond to cognitive-behavioral treatments.

16.
J Psychopharmacol ; 33(7): 801-810, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31169441

RESUMO

BACKGROUND: Little is known about the functional status of older drug users, who may pose challenges to public health systems in coming years. Here, we assessed cognitive function in aging cocaine smokers compared to demographically matched controls. METHODS: A total of 22 non-treatment-seeking aging (50-60 years old) cocaine smokers (⩾twice/week; ⩾15 years of weekly use) and 19 controls completed a comprehensive cognitive battery. Controls with cannabis, tobacco, and alcohol use were included to better match the cocaine users. All cocaine users, and current cannabis- or alcohol-using controls, completed testing after 4 drug-free inpatient days to better control for acute and residual drug effects. RESULTS: Cocaine users (52.9 ± 2.5 years old, four female; cocaine use 3.9 ± 1.4 days/week) and controls (52.7 ± 2.6 years old, four female) were well matched demographically, but cocaine users reported a more extensive substance use profile. Cocaine users showed marginally worse verbal learning than controls, recalling on average one word fewer across immediate and delayed word recall trials. Their performance was intact relative to controls across all other measures of cognitive function. Bayesian analysis indicated the absence of group differences was not due to power limitations. CONCLUSION: These data suggest that aging, long-term cocaine users have similar cognitive functioning to appropriately matched controls when tested under drug-free conditions, with only marginal decreases in verbal learning. Findings, although reassuring with regard to broad cognitive capacities in aging cocaine smokers, suggest that future investigations of cognitive function in aging drug users are warranted.


Assuntos
Transtornos Relacionados ao Uso de Cocaína/complicações , Transtornos Cognitivos/epidemiologia , Cognição/efeitos dos fármacos , Aprendizagem Verbal/efeitos dos fármacos , Consumo de Bebidas Alcoólicas/efeitos adversos , Transtornos Cognitivos/etiologia , Usuários de Drogas , Feminino , Humanos , Masculino , Abuso de Maconha/complicações , Pessoa de Meia-Idade , Testes Neuropsicológicos , Uso de Tabaco/efeitos adversos
18.
Addict Biol ; 24(5): 1044-1055, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-30328665

RESUMO

Illicit drug use among aging cohorts is increasing, yet little is known about functional impairments in older drug users. Given the importance of social integration for aging and documented social decrements in cocaine users, we examined social function and its neurocognitive substrates in aging cocaine users relative to carefully matched non-cocaine users. Regular (≥twice/week), long-term (≥15 years) cocaine smokers 50-60 years old (COCs; n = 22; four women) and controls (CTRLs; n = 19; four women) underwent standardized probes of social reward and threat processing during functional magnetic resonance imaging and a behavioral facial affect recognition task. Self-report and peer-report of daily interpersonal function were also collected. COCs, and CTRLs reporting current marijuana or alcohol use, were tested after four drug-free inpatient days. COCs had pronounced problems in daily social function relative to CTRLs indicated by both their own and their peers' reports. Compared with CTRLs, COCs had stronger amygdala responses to social threat versus control stimuli, with no other differences in social processing or cognition. Aging cocaine users appear to have marked, generalized difficulties in 'real-world' interpersonal function but largely intact social processing on laboratory-based measures when compared with appropriately matched controls and tested under well-controlled conditions. Daily social difficulties may be related to transient factors such as acute/residual drug effects or cocaine-related changes in health behaviors (e.g. disrupted sleep and poor diet). These data suggest that interpersonal function may be a valid intervention target for aging cocaine users and warrants further study in older drug users.


Assuntos
Envelhecimento , Encéfalo/diagnóstico por imagem , Fumar Cocaína/psicologia , Transtornos Relacionados ao Uso de Cocaína/diagnóstico por imagem , Reconhecimento Facial , Recompensa , Habilidades Sociais , Afeto , Encéfalo/fisiopatologia , Estudos de Casos e Controles , Fumar Cocaína/fisiopatologia , Transtornos Relacionados ao Uso de Cocaína/fisiopatologia , Transtornos Relacionados ao Uso de Cocaína/psicologia , Expressão Facial , Feminino , Neuroimagem Funcional , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Motivação , Autorrelato , Comportamento Social
19.
Psychiatry Res ; 257: 372-374, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-28803095

RESUMO

Marijuana use is associated with psychosis, but its effects are understudied in individuals with preexisting risk for psychotic disorders. This preliminary study examined the acute psychological and physiological effects of smoked marijuana (0.0% or 5.5% Δ9-THC) in marijuana users at clinical high-risk (CHR; n = 6) to develop a psychotic disorder, and those not at risk (n = 6), under controlled laboratory conditions. CHR marijuana users exhibited temporary increases in psychotic-like states and decreases in neurocognitive performance during marijuana intoxication but control marijuana smokers did not. These findings, if replicated, may support a psychotogenic role for marijuana in CHR individuals.


Assuntos
Disfunção Cognitiva/induzido quimicamente , Suscetibilidade a Doenças , Fumar Maconha/efeitos adversos , Sintomas Prodrômicos , Psicoses Induzidas por Substâncias/etiologia , Adulto , Feminino , Humanos , Masculino , Risco
20.
J Clin Exp Neuropsychol ; 38(6): 709-20, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27062912

RESUMO

Drug addiction is a chronic relapsing disorder characterized by compulsive drug seeking and continued use despite negative consequences. Behavioral impulsivity is a strong predictor of the initiation and maintenance of drug addiction. Preclinical data suggest that heroin may exacerbate impulsive characteristics in an individual but this has yet to be assessed in clinical samples. The current secondary data analysis sought to investigate the effects of heroin on impulsivity along with the effects of exposure to drug cues. Using the current data set, we also tentatively assessed the etiological relationship between impulsivity and heroin abuse. Sixteen heroin-dependent participants were recruited to complete Immediate Memory Task/Delayed Memory Task (IMT/DMT) and GoStop tasks following repeated heroin administration, following acute heroin administration, and following a drug cue exposure session. Four preceding days of active heroin availability, compared to four preceding days of placebo drug availability, increased impulsivity assessed using the IMT and DMT. Presentation of drug cues similarly acted to increase impulsivity assessments on all three tasks. It also appears that heavier users were more susceptible to the influence of drug cues on impulsivity. The present study represents a step toward a more comprehensive understanding of the interaction between opioid abuse and impulsivity. A better understanding of these factors could provide critical insight into the maintenance of heroin use and relapse.


Assuntos
Sinais (Psicologia) , Dependência de Heroína/fisiopatologia , Heroína/farmacologia , Comportamento Impulsivo/efeitos dos fármacos , Comportamento Impulsivo/fisiologia , Inibição Psicológica , Entorpecentes/farmacologia , Adulto , Feminino , Heroína/administração & dosagem , Humanos , Masculino , Pessoa de Meia-Idade , Entorpecentes/administração & dosagem , Testes Neuropsicológicos
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