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Schmalenberger KM, Mulligan EM, Barone JC, Nagpal A, Divine MM, Maki PM, Eisenlohr-Moul TA. Effects of acute estradiol administration on perimenstrual worsening of working memory, verbal fluency, and inhibition in patients with suicidal ideation: A randomized, crossover clinical trial. Psychiatry Res 2024; 342:116188. [PMID: 39299148 DOI: 10.1016/j.psychres.2024.116188] [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: 02/18/2024] [Revised: 08/30/2024] [Accepted: 09/09/2024] [Indexed: 09/22/2024]
Abstract
Accumulating evidence indicates that most female patients with suicidal ideation (SI) experience a dimensional worsening of depressive symptoms and SI in the perimenstrual phase of the menstrual cycle. Experimental trials demonstrate that acute perimenstrual administration of estradiol (E2; with or without progesterone/P4), can prevent these recurring episodes of increased risk. In this archival sample drawn from one of these clinical trials, we examined whether these beneficial E2 effects extend to specific types of cognition. For a double-blind, placebo-controlled experiment, we recruited transdiagnostic psychiatric outpatients with natural menstrual cycles who experienced past-month SI (N(per-protocol sample)=23; N(intent-to-treat sample)=44). In each of two counterbalanced conditions (perimenstrual administration of 0.1mg/d transdermal E2 vs. placebo), participants completed three cognitive tasks in three menstrual cycle phases (mid-luteal, perimenstrual, mid-follicular). Multilevel models revealed a significant interaction of condition and phase: E2 administration prevented mid-luteal-to-perimenstrual drops in working memory (p=.006) and verbal fluency (p=.005) observed under placebo. No effects were found for inhibitory control. In conclusion, we find perimenstrual declines in working memory and verbal fluency in patients with SI, which can be prevented by administering E2. This study contributes to our understanding of the hormone-brain pathways involved in the cyclical worsening of suicidality.
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Affiliation(s)
- Katja M Schmalenberger
- Department of Psychiatry, University of Illinois at Chicago, 1747 W. Roosevelt Rd., Chicago, IL 60612, USA.
| | - Elizabeth M Mulligan
- Department of Psychiatry, University of Illinois at Chicago, 1747 W. Roosevelt Rd., Chicago, IL 60612, USA.
| | - Jordan C Barone
- Department of Psychiatry, University of Illinois at Chicago, 1747 W. Roosevelt Rd., Chicago, IL 60612, USA.
| | - Anisha Nagpal
- Department of Psychiatry, University of Illinois at Chicago, 1747 W. Roosevelt Rd., Chicago, IL 60612, USA.
| | - Madeline M Divine
- Department of Psychology, University of Texas at Austin, Austin, TX, USA.
| | - Pauline M Maki
- Department of Psychiatry, University of Illinois at Chicago, 1747 W. Roosevelt Rd., Chicago, IL 60612, USA; Department of Psychology, University of Illinois at Chicago, Chicago, IL, USA; Department of Obstetrics & Gynecology, University of Illinois at Chicago, Chicago, IL, USA.
| | - Tory A Eisenlohr-Moul
- Department of Psychiatry, University of Illinois at Chicago, 1747 W. Roosevelt Rd., Chicago, IL 60612, USA; Department of Psychology, University of Illinois at Chicago, Chicago, IL, USA.
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Fang P, Gao Y, Li Y, Li C, Zhang T, Wu L, Zhu Y, Xie Y. Effects of computerized working memory training on neuroplasticity in healthy individuals: A combined neuroimaging and neurotransmitter study. Neuroimage 2024; 298:120785. [PMID: 39154869 DOI: 10.1016/j.neuroimage.2024.120785] [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: 12/16/2023] [Revised: 08/09/2024] [Accepted: 08/12/2024] [Indexed: 08/20/2024] Open
Abstract
Working memory (WM) is an essential cognitive function that underpins various higher-order cognitive processes. Improving WM capacity through targeted training interventions has emergered as a potential approach for enhancing cognitive abilities. The present study employed an 8-week regimen of computerized WM training (WMT) to investigate its effect on neuroplasticity in healthy individuals, utilizing neuroimaging data gathered both before and after the training. The key metrics assessed included the amplitude of low-frequency fluctuations (ALFF), voxel-based morphometry (VBM), and the spatial distribution correlations of neurotransmitter. The results indicated that post-training, compared to baseline, there was a reduction in ALFF in the medial superior frontal gyrus and an elevation in ALFF in the left middle occipital gyrus within the training group. In comparison to the control group, the training group also exhibited decreased ALFF in the anterior cingulate cortex, angular gyrus, and superior parietal lobule, along with increased ALFF in the postcentral gyrus post-training. VBM analysis revealed a significant increase in gray matter volume (GMV) in the right dorsal superior frontal gyrus after the training period, compared to the initial baseline measurement. Furthermore, the training group showed GMV increases in the dorsal superior frontal gyrus, Rolandic operculum, precentral gyrus, and postcentral gyrus when compared to the control group. In addition, significant associations were identifed between neuroimaging measurements (AFLL and VBM) and the spatial patterns of neurotransmitters such as serotonin (5-HT), dopamine (DA), and N-methyl-D-aspartate (NMDA), providing insights into the underlying neurochemical processes. These findings clarify the neuroplastic changes caused by WMT, offering a deeper understanding of brain plasticity and highlighting the potential advantages of cognitive training interventions.
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Affiliation(s)
- Peng Fang
- Military Medical Psychology School, Fourth Military Medical University, Xi'an, China; Shaanxi Provincial Key Laboratory of Bioelectromagnetic Detection and Intelligent Perception, Xi'an, China; Military Medical Innovation Center, Fourth Military Medical University, Xi'an, China; School of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Yuntao Gao
- Military Medical Psychology School, Fourth Military Medical University, Xi'an, China
| | - Yijun Li
- Military Medical Psychology School, Fourth Military Medical University, Xi'an, China
| | - Chenxi Li
- Military Medical Psychology School, Fourth Military Medical University, Xi'an, China
| | - Tian Zhang
- Military Medical Psychology School, Fourth Military Medical University, Xi'an, China
| | - Lin Wu
- Military Medical Psychology School, Fourth Military Medical University, Xi'an, China
| | - Yuanqiang Zhu
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China.
| | - Yuanjun Xie
- Military Medical Psychology School, Fourth Military Medical University, Xi'an, China.
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Li S, Wang S, Ji H, Tian N, Xu L, Chen W, Ding X. The dual nature of working memory deficits: methamphetamine abusers have more impaired social working memory capacity than canonical working memory capacity. PSYCHOLOGICAL RESEARCH 2024:10.1007/s00426-024-01996-z. [PMID: 38951234 DOI: 10.1007/s00426-024-01996-z] [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: 04/23/2024] [Accepted: 06/20/2024] [Indexed: 07/03/2024]
Abstract
Social working memory (WM) temporarily retains and manipulates various aspects of social information. Extensive research has highlighted impaired social cognitive functions in individuals with substance addiction. However, the specific deficit in social WM within this population remains notably understudied. Bridging this gap, we investigated social WM capacity using biological motion (BM) stimuli in methamphetamine (MA) abusers compared to an inmate control group, alongside contrasting these findings with their canonical WM deficits. Across two studies, we recruited female MA abusers (N = 80) undergoing post-isolation rehabilitation within a mandatory confinement circumstance. To ensure a pertinent comparison, we recruited female inmates (N = 80) subjected to comparable confinement. Results show substantial BM WM impairment in MA abusers, yet non-BM WM remains mostly intact. These findings highlight a pronounced social WM deficit in MA abusers, surpassing their canonical WM deficit relative to inmate controls. This suggests a distinct dissociation between social and canonical WM processing.
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Affiliation(s)
- Shouxin Li
- School of Psychology, Shandong Normal University, Jinan, China
| | - Shengyuan Wang
- Department of Psychology, Guangdong Provincial Key Laboratory of Social Cognitive Neuroscience and Mental Health, Sun Yat-sen University, Guangzhou, China
| | - Huichao Ji
- Department of Psychology, Guangdong Provincial Key Laboratory of Social Cognitive Neuroscience and Mental Health, Sun Yat-sen University, Guangzhou, China
- Department of Psychology, Yale University, New Haven, CT, 06511, USA
| | - Na Tian
- School of Psychology, Shandong Normal University, Jinan, China
| | - Luzi Xu
- Department of Psychology, Guangdong Provincial Key Laboratory of Social Cognitive Neuroscience and Mental Health, Sun Yat-sen University, Guangzhou, China
- Helmholtz Institute, Utrecht University, Utrecht, Netherlands
| | - Wei Chen
- Department of Psychology, Guangdong Provincial Key Laboratory of Social Cognitive Neuroscience and Mental Health, Sun Yat-sen University, Guangzhou, China
| | - Xiaowei Ding
- Department of Psychology, Guangdong Provincial Key Laboratory of Social Cognitive Neuroscience and Mental Health, Sun Yat-sen University, Guangzhou, China.
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Stringfield SJ, Kirschmann EK, Torregrossa MM. Working memory performance predicts, but does not reduce, cocaine- and cannabinoid-seeking in adult male rats. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.28.596305. [PMID: 38853853 PMCID: PMC11160613 DOI: 10.1101/2024.05.28.596305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Background Cognitive deficits reflecting impaired executive function are commonly associated with psychiatric disorders, including substance use. Cognitive training is proposed to improve treatment outcomes for these disorders by promoting neuroplasticity within the prefrontal cortex, enhancing executive control, and mitigating cognitive decline due to drug use. Additionally, brain derived neurotrophic factor (BDNF) can facilitate plasticity in the prefrontal cortex and reduce drug-seeking behaviors. We investigated whether working memory training could elevate BDNF levels in the prefrontal cortex and if this training would predict or protect against cocaine or cannabinoid seeking. Methods Adult male rats were trained to perform a 'simple' or 'complex' version of a delayed- match-to-sample working memory task. Rats then self-administered cocaine or the synthetic cannabinoid WIN55,212-2 and were tested for cued drug-seeking during abstinence. Tissue from the prefrontal cortex and dorsal hippocampus was analyzed for BDNF protein expression. Results Training on the working memory task enhanced endogenous BDNF protein levels in the prelimbic prefrontal cortex but not the dorsal hippocampus. Working memory training did not impact self-administration of either drug but predicted the extent of WIN self-administration and cocaine seeking during abstinence. Conclusions These results suggest that working memory training promotes endogenous BDNF but does not alter drug-seeking or drug-taking behavior. However, individual differences in cognitive performance prior to drug exposure may predict vulnerability to future drug use.
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Yang B, Tan X, Chen Y, Lin J, Liang J, Yue X, Qiao D, Wang H, Du S. The neuroprotective effects of caffeic acid phenethyl ester against methamphetamine-induced neurotoxicity. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 279:116497. [PMID: 38805827 DOI: 10.1016/j.ecoenv.2024.116497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 05/05/2024] [Accepted: 05/21/2024] [Indexed: 05/30/2024]
Abstract
Methamphetamine (METH) is a highly abused substance on a global scale and has the capacity to elicit toxicity within the central nervous system. The neurotoxicity induced by METH encompasses neuronal degeneration and cellular demise within the substantia nigra-striatum and hippocampus. Caffeic acid phenethyl ester (CAPE), a constituent of propolis, is a diminutive compound that demonstrates antioxidative and anti-inflammatory characteristics. Numerous investigations have demonstrated the safeguarding effects of CAPE in various neurodegenerative ailments. Our hypothesis posits that CAPE may exert a neuroprotective influence on METH-induced neurotoxicity via specific mechanisms. In order to validate the hypothesis, a series of experimental techniques including behavioral tests, immunofluorescence labeling, RNA sequencing, and western blotting were employed to investigate the neurotoxic effects of METH and the potential protective effects of CAPE. The results of our study demonstrate that CAPE effectively ameliorates cognitive memory deficits and anxiety symptoms induced by METH in mice. Furthermore, CAPE has been observed to attenuate the upregulation of neurotoxicity-associated proteins that are induced by METH exposure and also reduced the loss of hippocampal neurons in mice. Moreover, transcriptomics analysis was conducted to determine alterations in gene expression within the hippocampus of mice. Subsequently, bioinformatics analysis was employed to investigate the divergent outcomes and identify potential key genes. Interferon-stimulated gene 15 (ISG15) was successfully identified and confirmed through RT-qPCR, western blotting, and immunofluorescence techniques. Our research findings unequivocally demonstrated the neuroprotective effect of CAPE against METH-induced neurotoxicity, with ISG15 may have an important role in the underlying protective mechanism. These results offer novel perspectives on the treatment of METH-induced neurotoxicity.
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Affiliation(s)
- Bin Yang
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, Department of Forensic Pathology, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Xiaohui Tan
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, Department of Forensic Pathology, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yuzhen Chen
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jing Lin
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jingjie Liang
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Xia Yue
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, Department of Forensic Pathology, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Dongfang Qiao
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, Department of Forensic Pathology, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Huijun Wang
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, Department of Forensic Pathology, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Sihao Du
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, Department of Forensic Pathology, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China.
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Zhou H, Gong L, Su C, Teng B, Xi W, Li X, Geng F, Hu Y. White matter integrity of right frontostriatal circuit predicts internet addiction severity among internet gamers. Addict Biol 2024; 29:e13399. [PMID: 38711213 PMCID: PMC11074389 DOI: 10.1111/adb.13399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/25/2024] [Accepted: 04/16/2024] [Indexed: 05/08/2024]
Abstract
Excessive use of the internet, which is a typical scenario of self-control failure, could lead to potential consequences such as anxiety, depression, and diminished academic performance. However, the underlying neuropsychological mechanisms remain poorly understood. This study aims to investigate the structural basis of self-control and internet addiction. In a cohort of 96 internet gamers, we examined the relationships among grey matter volume and white matter integrity within the frontostriatal circuits and internet addiction severity, as well as self-control measures. The results showed a significant and negative correlation between dACC grey matter volume and internet addiction severity (p < 0.001), but not with self-control. Subsequent tractography from the dACC to the bilateral ventral striatum (VS) was conducted. The fractional anisotropy (FA) and radial diffusivity of dACC-right VS pathway was negatively (p = 0.011) and positively (p = 0.020) correlated with internet addiction severity, respectively, and the FA was also positively correlated with self-control (p = 0.036). These associations were not observed for the dACC-left VS pathway. Further mediation analysis demonstrated a significant complete mediation effect of self-control on the relationship between FA of the dACC-right VS pathway and internet addiction severity. Our findings suggest that the dACC-right VS pathway is a critical neural substrate for both internet addiction and self-control. Deficits in this pathway may lead to impaired self-regulation over internet usage, exacerbating the severity of internet addiction.
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Affiliation(s)
- Hui Zhou
- The State Key Lab of Brain‐Machine IntelligenceZhejiang UniversityHangzhouChina
- Department of Psychology and Behavioral SciencesZhejiang UniversityHangzhouChina
| | - Liangyu Gong
- Department of Psychology and Behavioral SciencesZhejiang UniversityHangzhouChina
| | - Conghui Su
- Department of Psychology and Behavioral SciencesZhejiang UniversityHangzhouChina
| | - Binyu Teng
- Department of Psychology and Behavioral SciencesZhejiang UniversityHangzhouChina
| | - Wan Xi
- Department of Psychology and Behavioral SciencesZhejiang UniversityHangzhouChina
| | - Xiumei Li
- Department of Psychology and Behavioral SciencesZhejiang UniversityHangzhouChina
| | - Fengji Geng
- Department of Curriculum and Learning SciencesZhejiang University, Zijingang CampusHangzhouChina
| | - Yuzheng Hu
- The State Key Lab of Brain‐Machine IntelligenceZhejiang UniversityHangzhouChina
- Department of Psychology and Behavioral SciencesZhejiang UniversityHangzhouChina
- MOE Frontiers Science Center for Brain Science & Brain‐Machine IntegrationZhejiang UniversityHangzhouChina
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of MedicineHangzhou City UniversityHangzhouChina
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Li MJ, Shoptaw SJ. Clinical management of psychostimulant withdrawal: review of the evidence. Addiction 2023; 118:750-762. [PMID: 36401591 PMCID: PMC10069411 DOI: 10.1111/add.16093] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 11/02/2022] [Indexed: 11/21/2022]
Abstract
It is estimated that a majority of people who use psychostimulants, particularly methamphetamine (MA) and cocaine, experience withdrawal upon abstinence from sustained use. This review of clinical research reports the evidence regarding biomedical and behavioral treatments for psychostimulant withdrawal symptoms. It provides a framework for clinicians and scientists to increase impact on attenuating MA and cocaine withdrawal during initial and sustained abstinence. Articles reviewed included reports of controlled clinical trials (randomized or non-randomized) reporting at least one withdrawal symptom among the outcomes or specifically studying patients in withdrawal. Potential efficacy for MA withdrawal is noted for a few medications (mirtazapine, naltrexone, bupropion) and repetitive transcranial magnetic stimulation during acute (first week), early protracted (weeks 2-4) and late protracted (> 4 weeks) withdrawal phases. Topiramate shows mixed evidence of efficacy for cocaine withdrawal. In general, there is inconsistent signal for biomedical and behavioral treatments on MA and cocaine withdrawal.
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Affiliation(s)
- Michael J. Li
- Department of Family Medicine, University of California, Los Angeles, CA, USA
| | - Steven J. Shoptaw
- Department of Family Medicine, University of California, Los Angeles, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, USA
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Opitz A, Petasch MS, Klappauf R, Kirschgens J, Hinz J, Dittmann L, Dathe AS, Quednow BB, Beste C, Stock AK. Does chronic use of amphetamine-type stimulants impair interference control? - A meta-analysis. Neurosci Biobehav Rev 2023; 146:105020. [PMID: 36581170 DOI: 10.1016/j.neubiorev.2022.105020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 12/01/2022] [Accepted: 12/23/2022] [Indexed: 12/27/2022]
Abstract
In substance use and addiction, inhibitory control is key to ignoring triggers, withstanding craving and maintaining abstinence. In amphetamine-type stimulant (ATS) users, most research focused on behavioral inhibition, but largely neglected the equally important subdomain of cognitive interference control. Given its crucial role in managing consumption, we investigated the relationship between interference control and chronic ATS use in adults. A database search (Pubmed & Web of Science) and relevant reviews were used to identify eligible studies. Effect sizes were estimated with random effects models. Subgroup, meta-regression, and sensitivity analyses explored heterogeneity in effect sizes. We identified 61 studies (53 datasets) assessing interference control in 1873 ATS users and 1905 controls. Findings revealed robust small effect sizes for ATS-related deficits in interference control, which were mainly seen in methamphetamine, as compared to MDMA users. The differential effects are likely due to tolerance-induced dopaminergic deficiencies (presumably most pronounced in methamphetamine users). Similarities between different ATS could be due to noradrenergic deficiencies; but elucidating their functional role in ATS users requires further/more research.
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Affiliation(s)
- Antje Opitz
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Germany
| | - Miriam-Sophie Petasch
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Germany
| | - Regine Klappauf
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Germany
| | - Josephine Kirschgens
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Germany
| | - Julian Hinz
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Germany
| | - Lena Dittmann
- Experimental and Clinical Pharmacopsychology, Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Switzerland
| | - Anthea S Dathe
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Germany
| | - Boris B Quednow
- Neuroscience Center Zurich, University of Zurich and Swiss Federal Institute of Technology Zurich, Switzerland; Biopsychology, Department of Psychology, School of Science, TU Dresden, Germany
| | - Christian Beste
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Germany
| | - Ann-Kathrin Stock
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Germany; Experimental and Clinical Pharmacopsychology, Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Switzerland.
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9
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Zhou H, Yao Y, Geng F, Chen F, Hu Y. Right Fusiform Gray Matter Volume in Children with Long-Term Abacus Training Positively Correlates with Arithmetic Ability. Neuroscience 2022; 507:28-35. [PMID: 36400323 DOI: 10.1016/j.neuroscience.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 10/02/2022] [Accepted: 11/07/2022] [Indexed: 11/17/2022]
Abstract
Abacus-based mental calculation (AMC) training has a positive effect on number-related cognitive abilities. While visuospatial strategy may distinguish AMC from conventional calculation method, the underlying neural mechanism is still elusive. The current study aimed to address this question by examining the plasticity of fusiform induced by AMC training and whether this training affects the association between the volume of fusiform and behavioral performance in numerical cognitive tasks using voxel-based morphometry analysis. The results showed that gray matter volumes of bilateral fusiform were significantly smaller in the AMC group relative to the control group. In addition, the volume of right fusiform was positively correlated with digit memory span and negatively correlated with reaction time of an arithmetic operation task only within the AMC group. These results indicate that bilateral fusiform may be the essential neural substrate for AMC experts to recognize and reconstruct abacus-based representations for numbers. These results may advance our understanding of the neural mechanisms of AMC and shield some lights to potential interactions between brain development and cognitive training in children.
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Affiliation(s)
- Hui Zhou
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310007, China
| | - Yuan Yao
- Bio-X Laboratory, Department of Physics, Zhejiang University, Hangzhou 310027, China; Department of Psychology, Suzhou University of Science and Technology, Suzhou, China
| | - Fengji Geng
- Department of Curriculum and Learning Sciences, College of Education, Zhejiang University, Hangzhou 310007, China
| | - Feiyan Chen
- Bio-X Laboratory, Department of Physics, Zhejiang University, Hangzhou 310027, China.
| | - Yuzheng Hu
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310007, China; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Zhejiang University City College, Hangzhou, China.
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10
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Huang D, Yan S, Shen S, Lv S, Lai S, Zhong S, Jia Y. Effects of virtual reality working memory training on event-based prospective memory in patients with major depressive disorder. J Psychiatr Res 2022; 156:91-99. [PMID: 36244203 DOI: 10.1016/j.jpsychires.2022.09.049] [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: 04/15/2022] [Revised: 09/17/2022] [Accepted: 09/24/2022] [Indexed: 01/20/2023]
Abstract
BACKGROUND Event-based prospective memory (EBPM) refers to remembering to perform delayed intention when specific events occur. EBPM deficit is present in patients with major depressive disorder (MDD) and hinders recovery from the illness. Working memory training (WMT) has been reported to enhance EBPM but its effect on EBPM in MDD remains unclear. We investigated whether virtual reality (VR)-based WMT can improve EBPM in MDD patients. METHODS Forty-six MDD patients and 41 healthy controls (HC) were recruited. Among the former ones, the first 23 consecutive patients were allocated to the experimental group (MDD-VR) and the next 23 consecutive patients to the waitlist control group (MDD-W). EBPM accuracy was used to assess EBPM performance. Hamilton Depression Rating Scale (HDRS) and Massachusetts General Hospital Cognitive and Physical Functioning Questionnaire (CPFQ) were employed to assess the cognitive functions and the depressive symptoms. RESULTS At baseline, EBPM accuracy did not significantly differ between MDD-VR and MDD-W but was lower in both of these two groups than in HC (both p < 0.001). Group-by-time interactions on EBPM accuracy (F = 4.614, p = 0.031) and CPFQ score (F = 5.754, p = 0.021) were present, whereas no significant group-by-time interaction or group effects were observed for HDRS score (both p > 0.05). After VR intervention, MDD-VR showed an increase in EBPM accuracy (Cohen's d = 1.20 [95% CI: 0.53, 1.86], p = 0.001). CONCLUSIONS Our results demonstrated that VR-based WMT could improve EBPM deficits in MDD patients. Large-scale studies of a VR-based WMT program are indicated.
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Affiliation(s)
- Dong Huang
- Department of Psychiatry, First Affiliated Hospital of Jinan University, Guangzhou, 510630, China
| | - Shuya Yan
- Department of Psychiatry, First Affiliated Hospital of Jinan University, Guangzhou, 510630, China; School of Management, Jinan University, Guangzhou, 510316, China
| | - Shiyi Shen
- School of Management, Jinan University, Guangzhou, 510316, China
| | - Sihui Lv
- Department of Psychiatry, First Affiliated Hospital of Jinan University, Guangzhou, 510630, China; School of Management, Jinan University, Guangzhou, 510316, China
| | - Shunkai Lai
- Department of Psychiatry, First Affiliated Hospital of Jinan University, Guangzhou, 510630, China
| | - Shuming Zhong
- Department of Psychiatry, First Affiliated Hospital of Jinan University, Guangzhou, 510630, China
| | - Yanbin Jia
- Department of Psychiatry, First Affiliated Hospital of Jinan University, Guangzhou, 510630, China.
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11
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Robledo-Castro C, Castillo-Ossa LF, Corchado JM. Artificial Cognitive Systems Applied in Executive Function Stimulation and Rehabilitation Programs: A Systematic Review. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022; 48:2399-2427. [PMID: 36185593 PMCID: PMC9516512 DOI: 10.1007/s13369-022-07292-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 09/15/2022] [Indexed: 11/11/2022]
Abstract
This article presents a systematic review of studies on cognitive training programs based on artificial cognitive systems and digital technologies and their effect on executive functions. The aim has been to identify which populations have been studied, the characteristics of the implemented programs, the types of implemented cognitive systems and digital technologies, the evaluated executive functions, and the key findings of these studies. The review has been carried out following the PRISMA protocol; five databases have been selected from which 1889 records were extracted. The articles were filtered following established criteria, to give a final selection of 264 articles that have been used for the purposes of this study in the analysis phase. The findings showed that the most studied populations were school-age children and the elderly. The most studied executive functions were working memory and attentional processes, followed by inhibitory control and processing speed. Many programs were commercial, customizable, gamified, and based on classic tasks. Some more recent initiatives have begun to incorporate user-machine interfaces, robotics, and virtual reality, although studies on their effects remain scarce. The studies recognize multiple benefits of computerized neuropsychological stimulation and rehabilitation programs for executive functions in different age groups, but there is a lack of studies in specific population sectors and with more rigorous research designs. Supplementary Information The online version contains supplementary material available at 10.1007/s13369-022-07292-5.
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Affiliation(s)
- Carolina Robledo-Castro
- Currículo, Universidad y Sociedad Research Group, Universidad del Tolima, Calle 42 1-02, 730006299 Ibagué, Colombia
- Ingeniería del Software Research Group, Universidad Autónoma de Manizales, Antigua Estación del Ferrocarril, 170001 Manizales, Colombia
| | - Luis F. Castillo-Ossa
- Ingeniería del Software Research Group, Universidad Autónoma de Manizales, Antigua Estación del Ferrocarril, 170001 Manizales, Colombia
- Inteligencia Artificial Research Group, Universidad de Caldas, Calle 65 26-10, 170002 Manizales, Colombia
- Departamento de Ingeniería Indutrial, Universidad Nacional de Colombia Sede Manizales, Campus La Nubia, 170001 Manizales, Colombia
| | - Juan M. Corchado
- BISITE Research Group, University of Salamanca, Calle Espejo s/n, 37007 Salamanca, Spain
- Air Institute, IoT Digital Innovation Hub, 37188 Salamanca, Spain
- Department of Electronics, Information and Communication, Osaka Institute of Technology, 535-8585 Osaka, Japan
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12
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Finn PR, Nemes L, Bailey A, Gunn RL, Wiemers EA, Redick TS. The Effects of Working Memory versus Adaptive Visual Search Control Training on Executive Cognitive Function. JOURNAL OF COGNITIVE ENHANCEMENT 2022; 6:327-339. [PMID: 37426470 PMCID: PMC10327672 DOI: 10.1007/s41465-022-00241-y] [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: 08/02/2021] [Accepted: 03/09/2022] [Indexed: 10/18/2022]
Abstract
There is considerable debate about whether Working Memory (WM) training specifically results in far-transfer improvements in executive cognitive function (ECF) rather than improvements on tasks similar to the training tasks. There has also been recent interest in whether WM training can improve ECF in clinical populations with clear deficits in ECFs. The current study examined the effects of WM training compared with non-WM adaptive Visual Search (VS) control training (15 sessions over 4 weeks) on various measures of ECF, including delay discounting (DD) rate, inhibition on flanker, color and spatial Stroop tasks, and drinking in a community-recruited sample with Alcohol Use Disorder (AUD, 41 men, 41 women, mean age = 21.7 years), who were not in treatment or seeking treatment, and non-AUD healthy controls (37 men, 52 women, mean age = 22.3 years). Both WM and VS training were associated with improvements on all ECF measures at 4 weeks and 1-month follow-up. WM and VS training were associated with reductions in both DD rates and interference on Stroop and Flanker tasks in all participants, as well as reductions in drinking in AUD participants that remained apparent one month post training. The results suggest that nonspecific effects of demanding cognitive training, as opposed to specific WM training effects, could enhance ECF, and that such enhancements are retained at least one-month post-training.
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Affiliation(s)
- Peter R Finn
- Department of Psychological and Brain Sciences, Indiana University Bloomington
| | - Luca Nemes
- Department of Psychological and Brain Sciences, Indiana University Bloomington
| | - Allen Bailey
- Department of Psychological and Brain Sciences, Indiana University Bloomington
| | - Rachel L Gunn
- Center for Alcohol and Addiction Studies, Brown University School of Public Health
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13
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Du Y, Yang W, Zhang J, Liu J. Changes in ALFF and ReHo values in methamphetamine abstinent individuals based on the Harvard-Oxford atlas: A longitudinal resting-state fMRI study. Addict Biol 2022; 27:e13080. [PMID: 34427375 PMCID: PMC9286454 DOI: 10.1111/adb.13080] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 05/24/2021] [Accepted: 07/14/2021] [Indexed: 01/10/2023]
Abstract
Methamphetamine (MA) abuse has become a global public health problem due to damage to various systems throughout the body, especially the central nervous system. However, the differences in resting‐state brain function between short‐term and long‐term abstinence, the pros and cons of treatments, and the relationship between resting‐state brain function and behavioral tests are unknown. Sixty‐three MA abstinent individuals were followed up for nearly 1 year and treated with three different methods. The amplitude of low‐frequency fluctuation (ALFF) and regional homogeneity (ReHo) based on the Harvard‐Oxford atlas (HOA) were measured by resting‐state functional magnetic resonance imaging (fMRI). Impulsivity was evaluated by the Barratt Impulsivity Scale‐11 (BIS‐11). Brain regions with significant increases in ALFF and ReHo values in the long‐term abstinent group compared to the short‐term abstinent group were around the right frontal pole (McKetin et al., 2012, https://doi.org/10.1111/j.1360-0443.2012.03933.x) and right middle frontal gyrus (Wang et al., 2015, https://doi.org/10.1371/journal.pone.0133431). There were no significant differences among the three groups that experienced long‐term abstinence. The changes in ALFF and ReHo in the right middle frontal gyrus were significantly associated with BIS total scores, BIS attention scores, and BIS nonplanning scores. The right middle frontal gyrus is a critical region in MA long‐term abstinent individuals exposed to therapeutic intervention, and this region may be useful, when combined with BIS‐11, as a potential biomarker to identify the effect of abstinence with therapeutic intervention in MA individuals.
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Affiliation(s)
- Yanyao Du
- Department of Radiology Second Xiangya Hospital of Central South University Changsha China
| | - Wenhan Yang
- Department of Radiology Second Xiangya Hospital of Central South University Changsha China
| | - Jun Zhang
- Department of Detoxification Treatment Technology Hunan Judicial Police Vocational College Changsha China
| | - Jun Liu
- Department of Radiology Second Xiangya Hospital of Central South University Changsha China
- Clinical Research Center for Medical Imaging in Hunan Province Changsha China
- Department of Radiology Quality Control Center Changsha China
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14
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Zhao X, Wang L, Maes JHR. Training and transfer effects of working memory updating training in male abstinent long-term methamphetamine users. Addict Behav Rep 2021; 14:100385. [PMID: 34938843 PMCID: PMC8664865 DOI: 10.1016/j.abrep.2021.100385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/24/2021] [Accepted: 10/05/2021] [Indexed: 11/02/2022] Open
Abstract
Methamphetamine use is associated with cognitive impairments, including executive functioning. These impairments might be cause and/or effect of the drug (re-)use and have, therefore, motivated interventions to improve cognitive functioning. Until now, only very few studies have examined the effect of training working memory updating (WMU), one of the core executive functions, in this population. In the present study, 32 long-term male abstinent methamphetamine inpatients received either a multiple-session WMU training or an active control treatment. All participants performed a number of tasks assessing WMU, inhibition, and task-switching ability- before and after treatment. The WMU-trained patients improved their performance on the trained task and on a non-trained WMU task, reflecting near transfer. However, there was no beneficial training-induced effect for the other tasks, indicating the absence of far transfer. Possible treatment implications of these findings were discussed.
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Affiliation(s)
- Xin Zhao
- Key Laboratory of Behavioral and Mental Health of Gansu Province, Northwest Normal University, Lanzhou 730070, China.,School of Psychology, Northwest Normal University, Lanzhou 730070, China
| | - Lei Wang
- Key Laboratory of Behavioral and Mental Health of Gansu Province, Northwest Normal University, Lanzhou 730070, China.,School of Psychology, Northwest Normal University, Lanzhou 730070, China
| | - Joseph H R Maes
- Donders Institute for Brain, Cognition and Behaviour, Centre for Cognition, Radboud University, PO. Box 9104, Nijmegen 6500 HE, the Netherlands
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15
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Jayanthi S, Daiwile AP, Cadet JL. Neurotoxicity of methamphetamine: Main effects and mechanisms. Exp Neurol 2021; 344:113795. [PMID: 34186102 PMCID: PMC8338805 DOI: 10.1016/j.expneurol.2021.113795] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 06/03/2021] [Accepted: 06/24/2021] [Indexed: 12/12/2022]
Abstract
Methamphetamine (METH) is an illicit psychostimulant that is abused throughout the world. METH addiction is also a major public health concern and the abuse of large doses of the drug is often associated with serious neuropsychiatric consequences that may include agitation, anxiety, hallucinations, paranoia, and psychosis. Some human methamphetamine users can also suffer from attention, memory, and executive deficits. METH-associated neurological and psychiatric complications might be related, in part, to METH-induced neurotoxic effects. Those include altered dopaminergic and serotonergic functions, neuronal apoptosis, astrocytosis, and microgliosis. Here we have endeavored to discuss some of the main effects of the drug and have presented the evidence supporting certain of the molecular and cellular bases of METH neurotoxicity. The accumulated evidence suggests the involvement of transcription factors, activation of dealth pathways that emanate from mitochondria and endoplasmic reticulum (ER), and a role for neuroinflammatory mechanisms. Understanding the molecular processes involved in METH induced neurotoxicity should help in developing better therapeutic approaches that might also serve to attenuate or block the biological consequences of use of large doses of the drug by some humans who meet criteria for METH use disorder.
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Affiliation(s)
- Subramaniam Jayanthi
- Molecular Neuropsychiatry Research Branch, NIDA Intramural Research Program, Baltimore, MD 21224, United States of America
| | - Atul P Daiwile
- Molecular Neuropsychiatry Research Branch, NIDA Intramural Research Program, Baltimore, MD 21224, United States of America
| | - Jean Lud Cadet
- Molecular Neuropsychiatry Research Branch, NIDA Intramural Research Program, Baltimore, MD 21224, United States of America.
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16
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Yang R, He L, Zhang Z, Zhou W, Liu J. The Higher Parietal Cortical Thickness in Abstinent Methamphetamine Patients Is Correlated With Functional Connectivity and Age of First Usage. Front Hum Neurosci 2021; 15:705863. [PMID: 34526885 PMCID: PMC8435861 DOI: 10.3389/fnhum.2021.705863] [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] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/09/2021] [Indexed: 01/11/2023] Open
Abstract
Aim This study aimed to explore the changes of cortical thickness in abstinent methamphetamine (MA) patients compared with healthy controls. Materials and Methods Three-tesla structural and functional magnetic resonance imaging (MRI) was obtained from 38 abstinent methamphetamine-dependent (AMD) patients and 32 demographically equivalent healthy controls. The cortical thickness was assessed using FreeSurfer software. General linear model was used to get brain regions with significant different cortical thickness between groups (p < 0.05, Monte Carlo simulation corrected). The mean cortical thickness value and functional connectivity with all other brain regions was extracted from those significant regions. Moreover, correlation coefficients were calculated in the AMD group to assess the relations between the mean cortical thickness, functional connectivity and age when they first took MA and the duration of both MA use and abstinence. Results The AMD group showed significant cortical thickness increase in one cluster located in the parietal cortex, including right posterior central gyrus, supramarginal gyrus, and superior parietal lobule. In addition, cortical thickness values of those regions were all significant and negatively correlated with the age when patients first used MA. The cortical thickness of right posterior gyrus were positively correlated with its functional connectivities with left middle frontal gyrus and both left and right medial orbitofrontal gyrus. Conclusion The higher cortical thickness in the parietal cortex of the AMD group is in agreement with findings in related studies of increased glucose metabolism and gray matter volume. Importantly, the negative correlation between parietal cortical thickness and age of first MA suggested that adolescent brains are more vulnerable to MA’s neurotoxic effect.
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Affiliation(s)
- Ru Yang
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Lei He
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China.,Department of Radiology, The First People's Hospital of Yueyang, Yueyang, China
| | - Zhixue Zhang
- Department of Radiology, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Wenming Zhou
- Department of Radiology, The First People's Hospital of Yueyang, Yueyang, China
| | - Jun Liu
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
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17
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Caetano T, Pinho MS, Ramadas E, Clara C, Areosa T, Dixe MDA. Cognitive Training Effectiveness on Memory, Executive Functioning, and Processing Speed in Individuals With Substance Use Disorders: A Systematic Review. Front Psychol 2021; 12:730165. [PMID: 34489833 PMCID: PMC8418081 DOI: 10.3389/fpsyg.2021.730165] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 07/20/2021] [Indexed: 12/20/2022] Open
Abstract
Background: Cerebral neuroplasticity is compromised due to substance abuse. There is damage to neuronal areas that are involved in memory and executive functioning. Treatments with worse outcomes are often associated with cognitive deficits that have resulted from substance dependence. However, there is evidence that cognitive training can lead to improvements in cognitive functions and can be useful when treating addictions. This systematic review aims to synthesize evidence on the effectiveness of cognitive training in memory, executive functioning, and processing speed in individuals with substance use disorder (SUD). Methods: The Joanna Briggs Institute's PICO strategy was used to develop this systematic literature review. Four databases were searched (PubMed, the Cochrane Library, Web of Science, and PsycINFO) to identify controlled randomized clinical studies and quasi-experimental studies, in English, Portuguese, and Spanish, from 1985 to 2019. The literature found was examined by two independent reviewers, who assessed the quality of studies that met the inclusion criteria. The Cochrane risk-of-bias tool for the randomized controlled trials and the ROBINS-I tool for non-randomized studies were used to assess the risk of bias. In data extraction, the Cochrane Handbook for Systematic Reviews was considered. Results: From a total of 470 studies, 319 were selected for analysis after the elimination of duplicates. According to the inclusion criteria defined, 26 studies were eligible and evaluated. An evaluation was performed considering the participant characteristics, countries, substance type, study and intervention details, and key findings. Of the 26 selected studies, 14 considered only alcoholics, six included participants with various SUD (alcohol and other substances), three exclusively looked into methamphetamine-consuming users and another three into opioid/methadone users. Moreover, 18 studies found some kind of cognitive improvement, with two of these reporting only marginally significant effects. One study found improvements only in measures similar to the training tasks, and two others had ambiguous results. Conclusions: The included studies revealed the benefits of cognitive training with regard to improving cognitive functions in individuals with SUD. Memory was the most scrutinized cognitive function in this type of intervention, and it is also one of the areas most affected by substance use. Systematic Review Registration: [PROSPERO], identifier [CRD42020161039].
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Affiliation(s)
- Tânia Caetano
- Center for Research in Neuropsychology and Cognitive and Behavioral Intervention, Faculty of Psychology and Educational Sciences, University of Coimbra, Coimbra, Portugal.,Center for Innovative Care and Health Technology (ciTechcare), Polytechnic of Leiria, Leiria, Portugal.,VillaRamadas International Treatment Centre, Research and Innovation Department, Leiria, Portugal
| | - Maria Salomé Pinho
- Center for Research in Neuropsychology and Cognitive and Behavioral Intervention, Faculty of Psychology and Educational Sciences, University of Coimbra, Coimbra, Portugal
| | - Eduardo Ramadas
- Center for Innovative Care and Health Technology (ciTechcare), Polytechnic of Leiria, Leiria, Portugal.,VillaRamadas International Treatment Centre, Research and Innovation Department, Leiria, Portugal
| | - Cátia Clara
- VillaRamadas International Treatment Centre, Research and Innovation Department, Leiria, Portugal
| | - Timóteo Areosa
- Center for Innovative Care and Health Technology (ciTechcare), Polytechnic of Leiria, Leiria, Portugal
| | - Maria Dos Anjos Dixe
- Center for Innovative Care and Health Technology (ciTechcare), Polytechnic of Leiria, Leiria, Portugal
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18
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Mystery of methamphetamine-induced autophagosome accumulation in hippocampal neurons: loss of syntaxin 17 in defects of dynein-dynactin driving and autophagosome-late endosome/lysosome fusion. Arch Toxicol 2021; 95:3263-3284. [PMID: 34374793 DOI: 10.1007/s00204-021-03131-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 08/04/2021] [Indexed: 01/07/2023]
Abstract
Methamphetamine (METH), a psychoactive-stimulant facilitates massive accumulation of autophagosomes and causes autophagy-associated neuronal death. However, the underlying mechanisms involving METH-induced auto-phagosome accumulation remain poorly understood. In the current study, autophagic flux was tracked by mRFP-GFP-LC3 adenovirus, 900 μM METH treatment was found to significantly disrupt autophagic flux, which was further validated by remarkable increase of co-localized of LC3 and SQSTM1/p62, enhancement of LC3-II and SQSTM1/p62 protein levels, and massive autophagosome puncta aggregation. With the cycloheximide (CHX) treatment, METH treatment was displayed a significant inhibition of SQSTM1/p62 degradation. Therefore, the mRNAs associated with vesicle degradation were screened, and syntaxin 17 (Stx17) and dynein-dynactin mRNA levels significantly decreased, an effect was proved in protein level as well. Intriguingly, METH induced autophagosome accumulation and autophagic flux disturbance was incredibly retarded by overexpression of Stx17, which was validated by the restoration of the fusion autophagosome-late endosome/lysosome fusion. Moreover, Stx17 overexpression obviously impeded the METH-induced decrease of co-localization of the retrograded motor protein dynein/dynactin and autophagosome-late endosome, though the dynein/dynactin proteins were not involved in autophagosome-late endosome/lysosome fusion. Collectively, our findings unravel the mechanism of METH-induced autophagosome accumulation involving autophagosome-late endosome/lysosome fusion deficiency and that autophagy-enhancing mechanisms such as the overexpression of Stx17 may be therapeutic strategies for the treatment of METH-induced neuronal damage.
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19
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Nardo T, Batchelor J, Berry J, Francis H, Jafar D, Borchard T. Cognitive Remediation as an Adjunct Treatment for Substance Use Disorders: A Systematic Review. Neuropsychol Rev 2021; 32:161-191. [PMID: 33871785 DOI: 10.1007/s11065-021-09506-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 04/06/2021] [Indexed: 11/28/2022]
Abstract
Substance use disorders are associated with diverse neuropsychological impairments, with deficits in memory and executive functioning commonly observed. Cognitive remediation has been shown to be effective in other populations with cognitive impairments in these domains, including those with psychiatric disorders and acquired brain injuries, and it has been hypothesised to be similarly effective for those in treatment for substance use disorders. We aimed to systematically review the evidence for cognitive remediation interventions administered as an adjunct treatment to substance use rehabilitation. Studies were included if participants were receiving substance use treatment, if improving cognitive functioning was the main focus of the intervention and if they used an experimental design with a control condition receiving treatment-as-usual or an active control intervention. Two independent reviewers agreed on the final selection of 32 studies, encompassing cognitive remediation for working memory, memory, executive functioning and general cognition. Significant differences between intervention and control groups for cognitive test results and treatment outcomes were extracted and compared across treatment approaches. The review found considerable heterogeneity across studies, including in the types of interventions, the nature of participants and the outcome measures used. Further, a lack of quality studies with sufficient power meant that limited conclusions could be drawn, highlighting a need for further replication and research. However, findings indicate that cognitive remediation remains a promising potential avenue for improving cognition and treatment outcomes for those in treatment for substance use disorders. Protocol submitted prospectively to PROSPERO 30.09.2019, CRD42020150978.
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Affiliation(s)
- Talia Nardo
- Macquarie University, North Ryde, NSW, 2109, Australia.
| | | | - Jamie Berry
- Macquarie University, North Ryde, NSW, 2109, Australia.,Advanced Neuropsychological Treatment Services, Strathfield South, NSW, 2136, Australia
| | | | - Deyyan Jafar
- Macquarie University, North Ryde, NSW, 2109, Australia
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20
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Altered patterns of fractional amplitude of low-frequency fluctuation and regional homogeneity in abstinent methamphetamine-dependent users. Sci Rep 2021; 11:7705. [PMID: 33833282 PMCID: PMC8032776 DOI: 10.1038/s41598-021-87185-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 03/22/2021] [Indexed: 02/01/2023] Open
Abstract
Methamphetamine (MA) could induce functional and structural brain alterations in dependent subjects. However, few studies have investigated resting-state activity in methamphetamine-dependent subjects (MADs). We aimed to investigate alterations of brain activity during resting-state in MADs using fractional amplitude of low-frequency fluctuation (fALFF) and regional homogeneity (ReHo). We analyzed fALFF and ReHo between MADs (n = 70) and healthy controls (HCs) (n = 84) and performed regression analysis using MA use variables. Compared to HCs, abstinent MADs showed increased fALFF and ReHo values in the bilateral striatum, decreased fALFF in the left inferior frontal gyrus, and decreased ReHo in the bilateral anterior cingulate cortex, sensorimotor cortex, and left precuneus. We also observed the fALFF values of bilateral striatum were positively correlated with the age of first MA use, and negatively correlated with the duration of MA use. The fALFF value of right striatum was also positively correlated with the duration of abstinence. The alterations of spontaneous cerebral activity in abstinent MADs may help us probe into the neurological pathophysiology underlying MA-related dysfunction and recovery. Since MADs with higher fALFF in the right striatum had shorter MA use and longer abstinence, the increased fALFF in the right striatum might implicate early recovery during abstinence.
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21
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Wang Q, Wang Y, Zuo J, Zhou Y, Yang WFZ, Liao Y, Tang J, Wang X, Yang Q, Wu Q, Wu HE, Goodman CB, Liu T, Zhang X. Factors of Negative Affect in Elderly Patients With Substance Use Disorders During COVID-19 Pandemic. Front Psychiatry 2021; 12:697472. [PMID: 34354617 PMCID: PMC8329338 DOI: 10.3389/fpsyt.2021.697472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/14/2021] [Indexed: 12/14/2022] Open
Abstract
Background: The outbreak of the novel coronavirus disease 2019 (COVID-19) has become the greatest public health emergency and has attracted global attention. During the COVID-19 pandemic, the negative affect (NA) of elderly patients with substance use disorders (SUDs) has also become a more serious public concern. The current study aims to clarify the NA and its influencing factors in elderly patients with SUDs during the pandemic. Methods: Two psychiatrists conducted semi-structured interviews with 77 SUD patients aged above 50 years to collect their demographical information and certain drug use characteristics. Barratt Impulse Scale and the Positive and Negative Affect Scale were used to obtain information about patients' self-reported impulsivity and NA. Results: Univariate linear regression analysis showed that NA was positively correlated with the frequency of drug use, type of SUDs, cravings during COVID-19, and impulsivity. Multiple linear regression analysis showed that being female, higher frequency of drug use, stronger cravings, and greater impulsiveness jointly accounted for the variation of NA in elderly patients with SUDs. Conclusions: This study confirmed that, during the COVID-19 pandemic, gender, frequency of drug use, cravings, and impulsivity were associated with NA in elderly patients with SUDs. This study provided a theoretical basis for clinicians to reduce the patients' NA.
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Affiliation(s)
- Qianjin Wang
- National Clinical Research Center for Mental Disorders, and Department of Psychiatry, the Second Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China
| | - Yingying Wang
- National Clinical Research Center for Mental Disorders, and Department of Psychiatry, the Second Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China
| | - Jinsong Zuo
- School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou, China
| | - Yanan Zhou
- National Clinical Research Center for Mental Disorders, and Department of Psychiatry, the Second Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China
| | - Winson Fu Zun Yang
- Department of Psychological Sciences, Texas Tech University, Lubbock, TX, United States
| | - Yanhui Liao
- Department of Psychiatry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jinsong Tang
- Department of Psychiatry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xin Wang
- National Clinical Research Center for Mental Disorders, and Department of Psychiatry, the Second Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China
| | - Qian Yang
- National Clinical Research Center for Mental Disorders, and Department of Psychiatry, the Second Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China
| | - Qiuxia Wu
- National Clinical Research Center for Mental Disorders, and Department of Psychiatry, the Second Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China
| | - Hanjing Emily Wu
- Department of Psychiatry and Behavioral Sciences, the University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Colin B Goodman
- Department of Psychiatry and Behavioral Sciences, the University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Tieqiao Liu
- National Clinical Research Center for Mental Disorders, and Department of Psychiatry, the Second Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China
| | - Xiangyang Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
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22
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Miró-Padilla A, Bueichekú E, Adrián-Ventura J, Costumero V, Palomar-García MÁ, Villar-Rodríguez E, Marin-Marin L, Aguirre N, Ávila C. Sustained and transient gray matter volume changes after n-back training: A VBM study. Neurobiol Learn Mem 2020; 178:107368. [PMID: 33348048 DOI: 10.1016/j.nlm.2020.107368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 11/30/2020] [Accepted: 12/15/2020] [Indexed: 11/19/2022]
Abstract
Working memory training causes functional adaptations in the brain, which include changes in activation and functional connectivity that remain stable over time. Few studies have investigated gray matter (GM) changes after working memory training, and they have produced heterogeneous results without clarifying the stable effects of training. The present study was designed to test for sustained and transient anatomic changes after only 200 min of working memory training. The voxel-based morphometry technique was used in order to investigate the GM changes produced by a brief single n-back training, immediately and 5 weeks after finishing it. The sample was composed by 59 human participants who underwent MRI scanning and were assigned to either a training group or a passive control group. Results showed sustained GM volume enlargement in the right superior parietal cortex and a transient GM decrease in the right putamen. The brain adaptation in the right superior parietal cortex was stronger in individuals who showed greater improvements in performance. The results provide further evidence that a brief working memory training is able to produce brain plasticity in structures related to the trained task.
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Affiliation(s)
- Anna Miró-Padilla
- Neuropsychology and Functional Neuroimaging Group, Department of Basic Psychology, Clinical Psychology and Psychobiology, Universitat Jaume I, Castelló de la Plana, Spain.
| | - Elisenda Bueichekú
- Neuropsychology and Functional Neuroimaging Group, Department of Basic Psychology, Clinical Psychology and Psychobiology, Universitat Jaume I, Castelló de la Plana, Spain.
| | - Jesús Adrián-Ventura
- Neuropsychology and Functional Neuroimaging Group, Department of Basic Psychology, Clinical Psychology and Psychobiology, Universitat Jaume I, Castelló de la Plana, Spain.
| | - Víctor Costumero
- Center for Brain and Cognition, Pompeu Fabra University, Barcelona, Spain.
| | - María-Ángeles Palomar-García
- Neuropsychology and Functional Neuroimaging Group, Department of Basic Psychology, Clinical Psychology and Psychobiology, Universitat Jaume I, Castelló de la Plana, Spain.
| | - Esteban Villar-Rodríguez
- Neuropsychology and Functional Neuroimaging Group, Department of Basic Psychology, Clinical Psychology and Psychobiology, Universitat Jaume I, Castelló de la Plana, Spain.
| | - Lidón Marin-Marin
- Neuropsychology and Functional Neuroimaging Group, Department of Basic Psychology, Clinical Psychology and Psychobiology, Universitat Jaume I, Castelló de la Plana, Spain.
| | - Naiara Aguirre
- Neuropsychology and Functional Neuroimaging Group, Department of Basic Psychology, Clinical Psychology and Psychobiology, Universitat Jaume I, Castelló de la Plana, Spain.
| | - César Ávila
- Neuropsychology and Functional Neuroimaging Group, Department of Basic Psychology, Clinical Psychology and Psychobiology, Universitat Jaume I, Castelló de la Plana, Spain.
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Brooks SJ, Mackenzie-Phelan R, Tully J, Schiöth HB. Review of the Neural Processes of Working Memory Training: Controlling the Impulse to Throw the Baby Out With the Bathwater. Front Psychiatry 2020; 11:512761. [PMID: 33132926 PMCID: PMC7511702 DOI: 10.3389/fpsyt.2020.512761] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 08/24/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Smartphone technology has enabled the creation of many working memory training (WMT) Apps, with those peer-reviewed described in a recent review. WMT claims to improve working memory, attention deficits, hyperactivity and fluid intelligence, in line with plasticity brain changes. Critics argue that WMT is unable to achieve "far-transfer"-the attainment of benefits to cognition from one taught context to another dissimilar context-associated with improved quality of life. However, brain changes after a course of WMT in frontoparietal and striatal circuits-that often occur prior to behavioral changes-may be a better indicator of far-transfer efficacy, especially to improve impulse control commonly dysregulated in those with addictive disorders, yet not commonly examined in WMT studies. METHOD In contrast to previous reviews, the aim here is to focus on the findings of brain imaging WMT training studies across various imaging modalities that use various paradigms, published via PubMed, Scopus, Medline, and Google Scholar. RESULTS 35 brain imaging studies utilized fMRI, structural imaging (MRI, DTI), functional connectivity, EEG, transcranial direct current stimulation (tDCS), cerebral perfusion, and neurogenetic analyses with tasks based on visuospatial and auditory working memory, dual and standard n-back. DISCUSSION Evidence suggests that repeated WMT reduces brain activation in frontoparietal and striatal networks reflective of increased neural circuitry efficiency via myelination and functional connectivity changes. Neural effects of WMT may persist months after training has ended, lead to non-trained task transfer, be strengthened by auxiliary methods such as tDCS and be related to COMT polymorphisms. WMT could be utilized as an effective, non-invasive intervention for working memory deficits to treat impulse and affective control problems in people with addictive disorders.
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Affiliation(s)
- Samantha J Brooks
- School of Psychology, Faculty of Health, Liverpool John Moores University, Liverpool, United Kingdom.,Section of Functional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.,Neuroscience Research Laboratory (NeuRL), Department of Psychology, School of Human and Community Development, University of the Witwatersrand, Johannesburg, South Africa
| | - Rhiannon Mackenzie-Phelan
- School of Psychology, Faculty of Health, Liverpool John Moores University, Liverpool, United Kingdom
| | - Jamie Tully
- School of Psychology, Faculty of Health, Liverpool John Moores University, Liverpool, United Kingdom
| | - Helgi B Schiöth
- Section of Functional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.,Institute for Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, Moscow, Russia
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Li X, Su H, Zhong N, Chen T, Du J, Xiao K, Xu D, Song W, Jiang H, Zhao M. Aberrant Resting-State Cerebellar-Cerebral Functional Connectivity in Methamphetamine-Dependent Individuals After Six Months Abstinence. Front Psychiatry 2020; 11:191. [PMID: 32296352 PMCID: PMC7137100 DOI: 10.3389/fpsyt.2020.00191] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 02/27/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Structural and functional alterations in the cerebellum have been consistently reported in addiction literatures. However, evidence implicating the resting-state cerebellar-cerebral functional connectivity in methamphetamine (MA) use disorder still remains limited. METHODS Resting-state functional magnetic resonance imaging (fMRI) scans were obtained from 34 MA dependent individuals with about six months abstinence and 31 healthy controls (well matched for age, gender and education) in this study. Seed-based functional connectivity analysis was employed to investigate the differences in cerebellar-cerebral functional connectivity between two groups. The correlations between significant functional connectivity and each clinical characteristic were also explored. RESULTS Compared to healthy controls, MA dependent individuals showed disrupted functional connectivity between the cerebellum and several cerebral functional networks, including the default-mode, affective-limbic, and sensorimotor networks. Within the MA group, functional connectivity of the right cerebellar lobule VI-precuneus coupling was negatively correlated with addiction severity. CONCLUSION The present study suggests that cerebellar dysfunction, in particular aberrant cerebellar-cerebral functional connectivity, might involve in neurobiological mechanism of MA dependence, which supply a potential target for therapeutic interventions in the future.
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Affiliation(s)
- Xiaotong Li
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hang Su
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Na Zhong
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tianzhen Chen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiang Du
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ke Xiao
- Department of Physiological Rehabilitation, Shanghai Drug Rehabilitation Administration Bureau, Shanghai, China
| | - Ding Xu
- Department of Physiological Rehabilitation, Shanghai Drug Rehabilitation Administration Bureau, Shanghai, China
| | - Weidong Song
- Department of Physiological Rehabilitation, Shanghai Drug Rehabilitation Administration Bureau, Shanghai, China
| | - Haifeng Jiang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Zhao
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai, China.,Institute of Psychological and Behavioral Science, Shanghai Jiao Tong University, Shanghai, China.,CAS Center for Excellence in Brain Science and Intelligence Technology (CEBSIT), Chinese Academy of Sciences, Shanghai, China
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25
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Guerin AA, Bonomo Y, Lawrence AJ, Baune BT, Nestler EJ, Rossell SL, Kim JH. Cognition and Related Neural Findings on Methamphetamine Use Disorder: Insights and Treatment Implications From Schizophrenia Research. Front Psychiatry 2019; 10:880. [PMID: 31920743 PMCID: PMC6928591 DOI: 10.3389/fpsyt.2019.00880] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 11/07/2019] [Indexed: 12/13/2022] Open
Abstract
Despite the prevalence of methamphetamine (meth) use disorder, research on meth is disproportionately scarce compared to research on other illicit drugs. Existing evidence highlights cognitive deficits as an impediment against daily function and treatment of chronic meth use. Similar deficits are also observed in schizophrenia, and this review therefore draws on schizophrenia research by examining similarities and differences between the two disorders on cognition and related neural findings. While meth use disorder and schizophrenia are two distinct disorders, they are highly co-morbid and share impairments in similar cognitive domains and altered brain structure/function. This narrative review specifically identifies overlapping features such as deficits in learning and memory, social cognition, working memory and inhibitory/impulse control. We report that while working memory deficits are a core feature of schizophrenia, such deficits are inconsistently observed following chronic meth use. Similar structural and functional abnormalities are also observed in cortical and limbic regions between the two disorders, except for cingulate activity where differences are observed. There is growing evidence that targeting cognitive symptoms may improve functional outcome in schizophrenia, with evidence of normalized abnormal brain activity in regions associated with cognition. Considering the overlap between meth use disorder and schizophrenia, targeting cognitive symptoms in people with meth use disorder may also improve treatment outcome and daily function.
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Affiliation(s)
- Alexandre A. Guerin
- Mental Health Theme, The Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
- Florey Department of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - Yvonne Bonomo
- Department of Addiction Medicine, St Vincent’s Hospital, Melbourne, VIC, Australia
- Department of Medicine, University of Melbourne, Melbourne, VIC, Australia
- Women’s Alcohol and Drug Service, Royal Women’s Hospital, Melbourne, VIC, Australia
| | - Andrew John Lawrence
- Mental Health Theme, The Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
- Florey Department of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | | | - Eric J. Nestler
- Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Susan L. Rossell
- Centre for Mental Health, Swinburne University of Technology, Melbourne, VIC, Australia
- Department of Psychiatry, St Vincent’s Hospital, Melbourne, VIC, Australia
| | - Jee Hyun Kim
- Mental Health Theme, The Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
- Florey Department of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
- Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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26
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Stewart JL, May AC, Paulus MP. Bouncing back: Brain rehabilitation amid opioid and stimulant epidemics. NEUROIMAGE-CLINICAL 2019; 24:102068. [PMID: 31795056 PMCID: PMC6978215 DOI: 10.1016/j.nicl.2019.102068] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 08/20/2019] [Accepted: 11/03/2019] [Indexed: 12/18/2022]
Abstract
Frontoparietal event related potentials predict/track recovery. Frontostriatal functional magnetic resonance imaging signals predict/track recovery. Transcranial magnetic left prefrontal stimulation reduces craving and drug use.
Recent methamphetamine and opioid use epidemics are a major public health concern. Chronic stimulant and opioid use are characterized by significant psychosocial, physical and mental health costs, repeated relapse, and heightened risk of early death. Neuroimaging research highlights deficits in brain processes and circuitry that are linked to responsivity to drug cues over natural rewards as well as suboptimal goal-directed decision-making. Despite the need for interventions, little is known about (1) how the brain changes with prolonged abstinence or as a function of various treatments; and (2) how symptoms change as a result of neuromodulation. This review focuses on the question: What do we know about changes in brain function during recovery from opioids and stimulants such as methamphetamine and cocaine? We provide a detailed overview and critique of published research employing a wide array of neuroimaging methods – functional and structural magnetic resonance imaging, electroencephalography, event-related potentials, diffusion tensor imaging, and multiple brain stimulation technologies along with neurofeedback – to track or induce changes in drug craving, abstinence, and treatment success in stimulant and opioid users. Despite the surge of methamphetamine and opioid use in recent years, most of the research on neuroimaging techniques for recovery focuses on cocaine use. This review highlights two main findings: (1) interventions can lead to improvements in brain function, particularly in frontal regions implicated in goal-directed behavior and cognitive control, paired with reduced drug urges/craving; and (2) the targeting of striatal mechanisms implicated in drug reward may not be as cost-effective as prefrontal mechanisms, given that deep brain stimulation methods require surgery and months of intervention to produce effects. Overall, more studies are needed to replicate and confirm findings, particularly for individuals with opioid and methamphetamine use disorders.
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Affiliation(s)
- Jennifer L Stewart
- Laureate Institute for Brain Research, Tulsa, OK, United States; Department of Community Medicine, University of Tulsa, Tulsa, OK, United States.
| | - April C May
- San Diego State University/University of California, San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA, United States
| | - Martin P Paulus
- Laureate Institute for Brain Research, Tulsa, OK, United States; Department of Community Medicine, University of Tulsa, Tulsa, OK, United States
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27
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Sampedro-Piquero P, Ladrón de Guevara-Miranda D, Pavón FJ, Serrano A, Suárez J, Rodríguez de Fonseca F, Santín LJ, Castilla-Ortega E. Neuroplastic and cognitive impairment in substance use disorders: a therapeutic potential of cognitive stimulation. Neurosci Biobehav Rev 2019; 106:23-48. [DOI: 10.1016/j.neubiorev.2018.11.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 10/15/2018] [Accepted: 11/23/2018] [Indexed: 01/08/2023]
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28
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Heany SJ, Phillips N, Brooks S, Fouche JP, Myer L, Zar H, Stein DJ, Hoare J. Neural correlates of maintenance working memory, as well as relevant structural qualities, are associated with earlier antiretroviral treatment initiation in vertically transmitted HIV. J Neurovirol 2019; 26:60-69. [PMID: 31482439 DOI: 10.1007/s13365-019-00792-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 08/06/2019] [Accepted: 08/14/2019] [Indexed: 11/24/2022]
Abstract
There is evidence of HIV affecting cognitive functioning across age groups, with adult studies showing related deficits in frontostriatal and hippocampal regional activity. Additionally, delayed initiation of antiretroviral treatment (ART) has been associated with poorer cognitive outcomes in HIV-infected youth. Little is known, however, of the neural correlates underlying such cognitive deficits in youth populations. We investigated maintenance working memory-related brain activity in South African HIV-infected youth and controls, and the effect of ART initiation age on underlying structures. Sixty-four perinatally infected youth (ages 9-12) and 20 controls (ages 9-13) underwent functional magnetic resonance imaging (fMRI) while completing 1-back and 0-back blocks of the N-back task. At an uncorrected p value threshold of 0.001, the HIV-infected group showed decreased activation in the left superior temporal gyrus, pre- and postcentral gyri, insula, and putamen as well as bilateral hippocampus, and mid cingulum. The HIV patients with delayed ART initiation showed less activation during processing conditions in the mid cingulum; left inferior parietal gyrus; and right inferior frontal, bilateral thalamic, and superior temporal regions. When these regions were tested for structural differences, the mid cingulum and right inferior frontal gyrus, insula, and thalamus were found to have less cortical thickness, surface area, or volume in the group with delayed ART initiation. Regional differences between HIV-infected youth and controls noted in the N-back task are consistent with impairments in structures involved in maintenance working memory. These data support earlier ART initiation in perinatally infected individuals.
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Affiliation(s)
- Sarah J Heany
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa.
| | - Nicole Phillips
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - Samantha Brooks
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - Jean-Paul Fouche
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - Landon Myer
- Division of Epidemiology & Biostatistics, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Heather Zar
- Department of Paediatrics & Child Health, Red Cross Children's Hospital, University of Cape Town, Cape Town, South Africa.,SA Medical Research Council Unit on Child & Adolescent Health, Cape Town, South Africa
| | - Dan J Stein
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa.,SA Medical Research Council Unit on Risk & Resilience in Mental Disorders, Cape Town, South Africa
| | - Jacqueline Hoare
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
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29
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Mann A, Wagstaff C. Psychosocial treatment for methamphetamine use and the associated mental health symptoms. ADVANCES IN DUAL DIAGNOSIS 2019. [DOI: 10.1108/add-11-2018-0022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
Methamphetamine users commonly experience induced methamphetamine associated mental health symptoms. Currently, psychosocial treatment is implemented to reduce use; however, to date, the effectiveness of psychosocial treatment in methamphetamine use and the associated mental health symptoms has not been reviewed. The paper aims to discuss this issue.
Design/methodology/approach
A systematic literature review was performed by searching databases (PubMed, Embase, Ovid MEDLINE, PsychINFO and CINAHL) and following clear inclusion/exclusion criteria.
Findings
In total, 12 studies met the inclusion/exclusion criteria, measuring a variety of psychosocial interventions and measuring a variety of different mental health outcomes. Decreased methamphetamine use was observed in the five studies which recorded this.
Research limitations/implications
Most studies in this review were preliminary trials and only three were RCTs. Additionally, methamphetamine use is a particular problem in Japan and is becoming more prevalent in Europe, yet neither primary nor secondary searching identified papers from these regions.
Practical implications
While the findings may not provide sufficient supporting evidence to instigate changes in clinical practice, this work should be developed further, as it is clear that psychosocial interventions can be successful in treating this population.
Social implications
This review demonstrates that psychosocial treatments can improve symptoms associated with methamphetamine use. Reduction in mental health symptoms has been shown to attract individuals to drug use treatment and thus indirectly reducing methamphetamine use.
Originality/value
Given the consequences of methamphetamine for individuals and communities treatment options must be explored. A review of psychosocial interventions in the treatment of methamphetamine use and associated mental health symptoms had not been done previously. This review provides a foundation for further research.
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30
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Catharine VL, Helena V, Ellen D, Guy V, Karel D, Karen C. Exploration of gray matter correlates of cognitive training benefit in adolescents with chronic traumatic brain injury. Neuroimage Clin 2019; 23:101827. [PMID: 31005776 PMCID: PMC6477162 DOI: 10.1016/j.nicl.2019.101827] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 03/19/2019] [Accepted: 04/13/2019] [Indexed: 12/23/2022]
Abstract
Sustaining a traumatic brain injury (TBI) during adolescence has a profound effect on brain development and can result in persistent executive functioning deficits in daily life. Cognitive recovery from pediatric-TBI relies on the potential of neuroplasticity, which can be fostered by restorative training-programs. However the structural mechanisms underlying cognitive recovery in the immature brain are poorly understood. This study investigated gray matter plasticity following 2 months of cognitive training in young patients with TBI. Sixteen adolescents in the chronic stage of moderate-severe-TBI (9 male, mean age = 15y8m ± 1y7m) were enrolled in a cognitive computerized training program for 8 weeks (5 times/week, 40 min/session). Pre-and post-intervention, and 6 months after completion of the training, participants underwent a comprehensive neurocognitive test-battery and anatomical Magnetic Resonance Imaging scans. We selected 9 cortical-subcortical Regions-Of-Interest associated with Executive Functioning (EF-ROIs) and 3 control regions from the Desikan-Killiany atlas. Baseline analyses showed significant decreased gray matter density in the superior frontal gyri p = 0.033, superior parietal gyri p = 0.015 and thalamus p = 0.006 in adolescents with TBI compared to age and gender matched controls. Linear mixed model analyses of longitudinal volumetric data of the EF-ROI revealed no strong evidence of training-related changes in the group with TBI. However, compared to the change over time in the control regions between post-intervention and 6 months follow-up, the change in the EF-ROIs showed a significant difference. Exploratory analyses revealed a negative correlation between the change on the Digit Symbol Substitution test and the change in volume of the putamen (r = -0.596, p = 0.015). This preliminary study contributes to the insights of training-related plasticity mechanisms after pediatric-TBI.
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Affiliation(s)
- Vander Linden Catharine
- Ghent University Hospital, Child Rehabilitation Centre K7, Corneel Heymanslaan 10, 9000 Ghent, Belgium.
| | - Verhelst Helena
- Ghent University, Department of Experimental Psychology, Faculty of Psychology and Educational Sciences, Henri Dunantlaan 2, 9000 Ghent, Belgium.
| | - Deschepper Ellen
- Ghent University, Biostatistics Unit, Department of Public Health, Corneel Heymanslaan 10, 9000 Ghent, Belgium.
| | - Vingerhoets Guy
- Ghent University, Department of Experimental Psychology, Faculty of Psychology and Educational Sciences, Henri Dunantlaan 2, 9000 Ghent, Belgium.
| | - Deblaere Karel
- Ghent University Hospital, Department of Neuroradiology, Corneel Heymanslaan 10, 9000 Ghent, Belgium.
| | - Caeyenberghs Karen
- Australian Catholic University, Mary McKillop Institute for Health Research Level 5, 215 Spring Street, Melbourne, VIC 3000, Australia.
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31
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Rubenis AJ, Fitzpatrick RE, Lubman DI, Verdejo‐Garcia A. Working memory predicts methamphetamine hair concentration over the course of treatment: moderating effect of impulsivity and implications for dual-systems model. Addict Biol 2019; 24:145-153. [PMID: 29114992 DOI: 10.1111/adb.12575] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 09/22/2017] [Accepted: 10/03/2017] [Indexed: 01/08/2023]
Abstract
High impulsivity and poor executive function are characteristic of methamphetamine use disorder. High arousal in the impulsive system has been proposed to compromise the executive system's regulating ability (i.e. the dual-systems model). While interaction between these variables may partly explain poor treatment outcomes associated with methamphetamine use disorder, previous research has tended to examine each factor separately. We investigated whether high impulsivity (measured with an impulsive choice task) and poor executive function (measured with a working memory task) predict methamphetamine use (determined by hair sample) in the 6 weeks following treatment commencement. We also investigated whether impulsive choice moderates the relationship between working memory and methamphetamine use. One hundred and eight individuals with methamphetamine use disorder (75 percent male) were tested within 3 weeks of commencing treatment; 80 (74 percent) were followed up 6 weeks following baseline testing. Cognitive measures significantly predicted drug use after controlling for nuisance variables. Working memory was a significant predictor, while impulsive choice was not. The interaction model included working memory as a predictor and impulsive choice as a moderator. This model was significant, as was the interaction term. Working memory significantly predicted levels of methamphetamine use in early treatment, and impulsive choice moderated this relationship. Those with working memory deficits are particularly vulnerable to using greater amounts of methamphetamine. As working memory increased methamphetamine use decreased among individuals with low/medium delay discounting. Pre-treatment cognitive testing may identify patients at high risk, while remediation of working memory function may be a treatment target for reducing methamphetamine use.
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Affiliation(s)
- Adam J. Rubenis
- Monash Institute of Cognitive and Clinical Neurosciences Monash University Clayton VIC 3800 Australia
| | - Rebecca E. Fitzpatrick
- Monash Institute of Cognitive and Clinical Neurosciences Monash University Clayton VIC 3800 Australia
| | - Dan I. Lubman
- Turning Point Eastern Health Fitzroy VIC 3065 Australia
- Eastern Health Clinical School Monash University Fitzroy VIC 3065 Australia
| | - Antonio Verdejo‐Garcia
- Monash Institute of Cognitive and Clinical Neurosciences Monash University Clayton VIC 3800 Australia
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Chen L, Zhou L, Yu P, Fang F, Jiang L, Fei J, Xiao H, Wang J. Methamphetamine exposure upregulates the amyloid precursor protein and hyperphosphorylated tau expression: The roles of insulin signaling in SH-SY5Y cell line. J Toxicol Sci 2019; 44:493-503. [PMID: 31270305 DOI: 10.2131/jts.44.493] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Lingling Chen
- Children’s Hospital of Nanjing Medical University, China
- Key Lab of Modern Toxicology (NJMU), Ministry of Education; Department of Toxicology, School of Public Health, Nanjing Medical University, China
| | - Li Zhou
- Children’s Hospital of Nanjing Medical University, China
| | - Pengfei Yu
- Key Lab of Modern Toxicology (NJMU), Ministry of Education; Department of Toxicology, School of Public Health, Nanjing Medical University, China
| | - Fangfang Fang
- Key Lab of Modern Toxicology (NJMU), Ministry of Education; Department of Toxicology, School of Public Health, Nanjing Medical University, China
- Community Health Service Center of Rong Xiang Street, China
| | - Lei Jiang
- Department of Emergency Medicine, the First Affiliated Hospital of Nanjing Medical University, China
- Key Lab of Modern Toxicology (NJMU), Ministry of Education; Department of Toxicology, School of Public Health, Nanjing Medical University, China
| | - Jian Fei
- Children’s Hospital of Nanjing Medical University, China
| | - Hang Xiao
- Key Lab of Modern Toxicology (NJMU), Ministry of Education; Department of Toxicology, School of Public Health, Nanjing Medical University, China
| | - Jun Wang
- Key Lab of Modern Toxicology (NJMU), Ministry of Education; Department of Toxicology, School of Public Health, Nanjing Medical University, China
- China International Cooperation Center for Environment and Human Health, China
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33
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Luquiens A, Miranda R, Benyamina A, Carré A, Aubin HJ. Cognitive training: A new avenue in gambling disorder management? Neurosci Biobehav Rev 2018; 106:227-233. [PMID: 30359663 DOI: 10.1016/j.neubiorev.2018.10.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 09/10/2018] [Accepted: 10/18/2018] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Cognitive deficits are being robustly documented in gambling disorder. Cognitive training has been increasingly investigated as a treatment of substance use disorders. Four training components have been listed to date: cognitive bias, response inhibition, working memory, and goal-directed. This review aimed at the identification of use and efficacy findings in cognitive training in gambling disorder. METHODS We conducted a systematic search to identify use and efficacy data of cognitive training in gambling disorder. No use or efficacy data was available. DISCUSSION AND PERSPECTIVES Studies assessing cognitive training in gambling disorder are being conducted and first results should be upcoming. Methodological challenges have been identified. Several candidate target cognitive functions of training programs are being investigated, relying on the most documented impairments in gambling disorder, inhibition, reward sensitivity and decision making. Gambling-specific or neutral environments are to be distinguished clearly and do not rely on similar assumptions, i.e. general vulnerability or vulnerability expressed only in the specific context of gambling. Proper control groups with placebo conditions should be implemented. Assessment of efficacy should include clinical and neuropsychological assessments to give information of underlying mechanisms of action.
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Affiliation(s)
- Amandine Luquiens
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France.
| | - Ruben Miranda
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France
| | - Amine Benyamina
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France
| | - Arnaud Carré
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, LIP/PC2S, 38000, Grenoble, France
| | - Henri-Jean Aubin
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France
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34
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Involvement of insulin signalling pathway in methamphetamine-induced hyperphosphorylation of Tau. Toxicology 2018; 408:88-94. [DOI: 10.1016/j.tox.2018.07.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/31/2018] [Accepted: 07/03/2018] [Indexed: 11/22/2022]
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35
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The impact of acute and short-term methamphetamine abstinence on brain metabolites: A proton magnetic resonance spectroscopy chemical shift imaging study. Drug Alcohol Depend 2018; 185:226-237. [PMID: 29471227 DOI: 10.1016/j.drugalcdep.2017.11.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 11/30/2017] [Accepted: 11/30/2017] [Indexed: 12/29/2022]
Abstract
BACKGROUND Abuse of methamphetamine (MA) is a global health concern. Previous 1H-MRS studies have found that, with methamphetamine abstinence (MAA), there are changes in n-acetyl-aspartate (NAA/Cr), myo-inositol (mI/Cr), choline (Cho/Cr and Cho/NAA), and glutamate with glutamine (Glx) metabolites. Limited studies have investigated the effect of acute MAA, and acute-to-short-term MAA on brain metabolites. METHODS Adults with chronic MA dependence (n = 31) and healthy controls (n = 22) were recruited. Two-dimensional chemical shift 1H-MRS imaging (TR2000 ms, TE30 ms) slice was performed and included voxels in bilateral anterior-cingulate (ACC), frontal-white-matter (FWM), and dorsolateral-prefrontal-cortices (DLPFC). Control participants were scanned once. The MA group was scanned twice, with acute (1.5 ± 0.6 weeks, n = 31) and short-term MAA (5.1 ± 0.8 weeks, n = 22). The change in 1H-MRS metabolites over time (n = 19) was also investigated. Standard 1H-MRS metabolites are reported relative to Cr + PCr. RESULTS Acute MAA showed lower n-acetyl-aspartate (NAA) and n-acetyl-aspartate with n-acetyl-aspartyl-glutamate (NAA + NAAG) in left DLPFC, and glycerophosphocholine with phosphocholine (GPC + PCh) in left FWM. Short-term MAA showed lower NAA + NAAG and higher myo-inositol (mI) in right ACC, lower NAA and NAA + NAAG in the left DLPFC, and lower GPC + PCh in left FWM. Over time, MAA showed decreased NAA and NAA + NAAG and increased mI in right ACC, decreased NAA and NAA + NAAG in right FWM, and decreased in mI in left FWM. CONCLUSION In acute MAA, there was damage to the integrity of neuronal tissue, which was enhanced with short-term MAA. From acute to short-term MAA, activation of neuroinflammatory processes are suggested. This is the first 1H-MRS study to report the development of neuroinflammation with loss of neuronal integrity in MAA.
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Gray matter volume showed dynamic alterations in methamphetamine users at 6 and 12months abstinence: A longitudinal voxel-based morphometry study. Prog Neuropsychopharmacol Biol Psychiatry 2018; 81:350-355. [PMID: 28887180 DOI: 10.1016/j.pnpbp.2017.09.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 09/01/2017] [Accepted: 09/03/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Previous studies have demonstrated brain gray matter reduction in methamphetamine (MA) users; however, little is known about longitudinal brain structural alternations during abstinence. METHOD Brain volumes were compared among 30 MA-dependent patients (average 6.3years of drug use) at 6months' abstinence and 27 drug-naïve controls by voxel-based morphometry. A longitudinal analysis of MA subjects was performed from 6 to 12months' abstinence, and multiple regression analyses were performed between drug use patterns and gray matter volumes (GMV) at 6months' abstinence. RESULTS Compared with drug-naïve subjects, subjects with 6months' abstinent of MA showed significantly lower GMV in the precentral gyrus, caudate head, fusiform gyrus, and cerebellum. Compared to 6months' abstinence, GMV was greater in the cerebellum and lower in the cingulate gyrus at 12months' abstinence. Accumulated years of MA use negatively correlated with GMV in the right superior frontal gyrus, the right superior temporal cortex, and the right caudate nucleus (significant at the whole brain level, p<0.001; FWE cluster-corrected p<0.05). CONCLUSION The present study suggested that heavy MA users' GMV could show dynamic alterations in different brain regions at different time lengths of abstinence.
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Zhang Z, He L, Huang S, Fan L, Li Y, Li P, Zhang J, Liu J, Yang R. Alteration of Brain Structure With Long-Term Abstinence of Methamphetamine by Voxel-Based Morphometry. Front Psychiatry 2018; 9:722. [PMID: 30618890 PMCID: PMC6306455 DOI: 10.3389/fpsyt.2018.00722] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 12/07/2018] [Indexed: 12/12/2022] Open
Abstract
Background: A large portion of previous studies that have demonstrated brain gray matter reduction in individuals who use methamphetamine (MA) have focused on short-term abstinence, but few studies have focused on the effects of long-term abstinence of methamphetamine on brain structures. Materials and Methods: Our study includes 40 healthy controls and 44 abstinent methamphetamine-dependent (AMD) subjects who have abstained for at least 14 months. For every AMD subject, the age when they first used MA, the total time of MA use, the frequency of MA use in the last month before abstinence, the duration of abstinence and the craving score were recorded. Here we used magnetic resonance imaging (MRI) to measure the gray matter volume (GMV) of each subject with voxel-based morphometry method. Two-sample t-test (AlphaSim corrected) was performed to obtain brain regions with different gray matter volume (GMV) between groups. In addition, partial correlation coefficients adjusted for age, years of education, smoking, and drinking were calculated in the AMD group to assess associations between the mean GMV values in significant clusters and variables of MA use and abstinence. Results: Compared with the healthy control group, AMD group showed increased gray matter volumes in the bilateral cerebellum and decreased volumes in the right calcarine and right cuneus. Moreover, GMV of left cerebellum are positively correlated with the duration of abstinence in the AMD group (p = 0.040, r = 0.626). Conclusions: The present study showed that the gray matter volume in some brain regions is abnormal in the AMD subjects with long-term abstinence. Changes in gray matter volume of visual and cognitive function regions suggested that these areas play important roles in the progress of MA addiction and abstinence. In addition, positive correlation between GMV of the left cerebellum crus and duration of abstinence suggested that prolonged abstinence is beneficial to cognitive function recovery.
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Affiliation(s)
- Zhixue Zhang
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China.,Department of Radiology, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Lei He
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Shucai Huang
- Department of Psychiatry, The Fourth People's Hospital of Wuhu, Wuhu, China
| | - Lidan Fan
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yining Li
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ping Li
- Department of Radiology, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Jun Zhang
- Hunan Judicial Police Academy, Changsha, China
| | - Jun Liu
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ru Yang
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
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Brooks SJ, Funk SG, Young SY, Schiöth HB. The Role of Working Memory for Cognitive Control in Anorexia Nervosa versus Substance Use Disorder. Front Psychol 2017; 8:1651. [PMID: 29018381 PMCID: PMC5615794 DOI: 10.3389/fpsyg.2017.01651] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 09/07/2017] [Indexed: 01/20/2023] Open
Abstract
Prefrontal cortex executive functions, such as working memory (WM) interact with limbic processes to foster impulse control. Such an interaction is referred to in a growing body of publications by terms such as cognitive control, cognitive inhibition, affect regulation, self-regulation, top-down control, and cognitive–emotion interaction. The rising trend of research into cognitive control of impulsivity, using various related terms reflects the importance of research into impulse control, as failure to employ cognitions optimally may eventually result in mental disorder. Against this background, we take a novel approach using an impulse control spectrum model – where anorexia nervosa (AN) and substance use disorder (SUD) are at opposite extremes – to examine the role of WM for cognitive control. With this aim, we first summarize WM processes in the healthy brain in order to frame a systematic review of the neuropsychological, neural and genetic findings of AN and SUD. In our systematic review of WM/cognitive control, we found n = 15 studies of AN with a total of n = 582 AN and n = 365 HC participants; and n = 93 studies of SUD with n = 9106 SUD and n = 3028 HC participants. In particular, we consider how WM load/capacity may support the neural process of excessive epistemic foraging (cognitive sampling of the environment to test predictions about the world) in AN that reduces distraction from salient stimuli. We also consider the link between WM and cognitive control in people with SUD who are prone to ‘jumping to conclusions’ and reduced epistemic foraging. Finally, in light of our review, we consider WM training as a novel research tool and an adjunct to enhance treatment that improves cognitive control of impulsivity.
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Affiliation(s)
- Samantha J Brooks
- Functional Pharmacology, Department of Neuroscience, Uppsala UniversityUppsala, Sweden.,Department of Psychiatry and Mental Health, University of Cape TownCape Town, South Africa
| | - Sabina G Funk
- Department of Psychiatry and Mental Health, University of Cape TownCape Town, South Africa
| | - Susanne Y Young
- Department of Psychiatry, Stellenbosch UniversityBellville, South Africa
| | - Helgi B Schiöth
- Functional Pharmacology, Department of Neuroscience, Uppsala UniversityUppsala, Sweden
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Moszczynska A, Callan SP. Molecular, Behavioral, and Physiological Consequences of Methamphetamine Neurotoxicity: Implications for Treatment. J Pharmacol Exp Ther 2017; 362:474-488. [PMID: 28630283 PMCID: PMC11047030 DOI: 10.1124/jpet.116.238501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 05/09/2017] [Indexed: 04/28/2024] Open
Abstract
Understanding the relationship between the molecular mechanisms underlying neurotoxicity of high-dose methamphetamine (METH) and related clinical manifestations is imperative for providing more effective treatments for human METH users. This article provides an overview of clinical manifestations of METH neurotoxicity to the central nervous system and neurobiology underlying the consequences of administration of neurotoxic METH doses, and discusses implications of METH neurotoxicity for treatment of human abusers of the drug.
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Affiliation(s)
- Anna Moszczynska
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, Michigan
| | - Sean Patrick Callan
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, Michigan
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Brooks SJ, Wiemerslage L, Burch KH, Maiorana SA, Cocolas E, Schiöth HB, Kamaloodien K, Stein DJ. The impact of cognitive training in substance use disorder: the effect of working memory training on impulse control in methamphetamine users. Psychopharmacology (Berl) 2017; 234:1911-1921. [PMID: 28324119 PMCID: PMC5486910 DOI: 10.1007/s00213-017-4597-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 03/11/2017] [Indexed: 01/08/2023]
Abstract
OBJECTIVES Impulsivity is a vulnerability trait for poor self-regulation in substance use disorder (SUD). Working memory (WM) training improves impulsivity and self-regulation in psychiatric disorders. Here we test WM training in methamphetamine use disorder (MUD). METHODS There are 15 MUD patients receiving inpatient treatment as usual (TAU) and 20 who additionally completed WM cognitive training (CT) and 25 healthy controls (HC). MANCOVA repeated measures analyses examined changes in impulsivity and self-regulation at baseline and after 4 weeks. RESULTS Post hoc t tests confirmed that at baseline, feelings of self-control were significantly lower in the MUD (t = 2.001, p = 0.05) and depression was higher (t = 4.980, p = 0.001), as was BIS total impulsivity (t = 5.370, p = 0.001) compared to the HC group. Total self-regulation score was higher in HC than MUD patients (t = 5.370, p = 0.001). CT had a 35% learning rate (R 2 = 0.3523, p < 0.05). Compared to follow-up TAU, follow-up CT group had higher self-reported mood scores (t = 2.784, p = 0.01) and higher compared to CT baseline (t = 2.386, p = 0.036). Feelings of self-control were higher in CT than TAU at follow-up (t = 2.736, p = 0.012) and also compared to CT baseline (t = 3.390, p = 0.006), lack of planning significantly improved in CT between baseline and follow-up (t = 2.219, p = 0.048), as did total impulsivity scores (t = 2.085, p = 0.048). Measures of self-regulation were improved in the CT group compared to TAU at follow-up, in total score (t = 2.442, p = 0.038), receiving score (t = 2.314, p = 0.029) and searching score (t = 2.362, p = 0.027). Implementing self-regulation was higher in the CT group compared to TAU (t = 2.373, p = 0.026). CONCLUSIONS WM training may improve control of impulsivity and self-regulation in people with MUD.
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Affiliation(s)
- Samantha J. Brooks
- 0000 0004 0635 1506grid.413335.3UCT Department of Psychiatry and Mental Health, Groote Schuur Hospital, Anzio Road, Observatory, Cape Town, South Africa ,0000 0004 1936 9457grid.8993.bDepartment of Neuroscience, Uppsala University, Uppsala, Sweden
| | - L Wiemerslage
- 0000 0004 1936 9457grid.8993.bDepartment of Neuroscience, Uppsala University, Uppsala, Sweden
| | - KH Burch
- 0000 0004 0635 1506grid.413335.3UCT Department of Psychiatry and Mental Health, Groote Schuur Hospital, Anzio Road, Observatory, Cape Town, South Africa ,0000 0004 1936 8868grid.4563.4Department of Neuroscience, University of Nottingham, Nottingham, UK
| | - SA Maiorana
- 0000 0004 0635 1506grid.413335.3UCT Department of Psychiatry and Mental Health, Groote Schuur Hospital, Anzio Road, Observatory, Cape Town, South Africa ,UCT Department of Psychology, Cape Town, South Africa
| | - E Cocolas
- 0000 0004 0635 1506grid.413335.3UCT Department of Psychiatry and Mental Health, Groote Schuur Hospital, Anzio Road, Observatory, Cape Town, South Africa
| | - HB Schiöth
- 0000 0004 1936 9457grid.8993.bDepartment of Neuroscience, Uppsala University, Uppsala, Sweden
| | - K Kamaloodien
- 0000 0001 2156 8226grid.8974.2Department of Psychology, University of the Western Cape, Cape Town, South Africa
| | - DJ Stein
- 0000 0004 0635 1506grid.413335.3UCT Department of Psychiatry and Mental Health, Groote Schuur Hospital, Anzio Road, Observatory, Cape Town, South Africa ,MRC Unit on Anxiety and Stress Disorders, Cape Town, South Africa
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