AI Article Synopsis
- Research indicates that methamphetamine use may lead to cognitive control impairment, impacting impulsivity in drug use, with a focus on understanding proactive and reactive control in individuals with methamphetamine use disorder (MUD).
- In a study comparing 25 abstinent MUD individuals to 27 healthy controls, no behavioral differences were noted; however, the MUD group demonstrated diminished cue-locked switch positivity and smaller target-locked positivity compared to controls.
- The results suggest that those with MUD have reduced proactive control, relying more on reactive control, emphasizing the need for further understanding and targeted interventions for cognitive control issues in this population.
Article Abstract
Background: Research suggests that methamphetamine use is associated with impaired cognitive control, which may contribute to impulsive drug use. Cognitive control is dynamically mediated by proactive and reactive control (reflecting various processing stages of cognitive control with different properties), and it is crucial to determine whether methamphetamine use impairs proactive and/or reactive control. To address this issue, we conducted an event-related potential (ERP) study to examine proactive and reactive control in individuals with methamphetamine use disorder (MUD).
Methods: Abstinent individuals with MUD (n = 25) and healthy controls (HC, n = 27) completed a cued task-switching task while brain electrical activity was recorded. Cue- and target-locked ERP components modulated by task switching were linked to proactive and reactive control, respectively.
Results: No behavioral differences between the groups were found. However, the HC group showed cue-locked switch-positivity (i.e., more positive amplitudes for switch than repeat trials) in both the early and late time windows, although the MUD group only showed late switch-positivity, which was smaller than the HC group. Independent of switch or congruent condition, the MUD group had smaller target-locked positivity than the HC group.
Conclusions: These findings suggest that individuals with MUD exhibit reduced proactive control and mobilize extra reactive control efforts to compensate. Our study contributes to a better understanding of cognitive control impairment in individuals with MUD and has implications for potential interventions.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jpsychires.2023.02.004 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Cardioprotective potential of tectochrysin against vanadium induced heart damage via regulating NLRP3, JAK1/STAT3 and NF-κB pathway.
J Trace Elem Med Biol
January 2025
Department of Pathology, College of Medicine, King Khalid University, Asir 61421, Saudi Arabia; Department of Forensic Medicine and Clinical Toxicology, Mansoura University, Egypt.
Background: Vanadium (VAN) is a significant trace element, but its higher exposure is reported to cause severe organ toxicity. Tectochrysin (TEC) is a naturally derived flavonoid which demonstrates a wide range of pharmacological properties.
Aim: The current study was planned to assess the cardioprotective potential of TEC against VAN induced cardiotoxicity in rats via regulating biochemical, and histological profile.
Effects of White Noise Intervention on Sleep Quality and Immunological Indicators of Patients with Breast Cancer Undergoing Neoadjuvant Chemotherapy.
Noise Health
January 2025
Department of Geriatric Health Internal Medicine, Qingdao Municipal Hospital, Qingdao 266000, China.
Objective: Evaluate the effect of white noise intervention on sleep quality and immunological indicators of patients with breast cancer undergoing neoadjuvant chemotherapy (NAC).
Methods: From January 2020 to December 2022, 104 newly diagnosed female patients (the number of people who met the inclusion criteria) with breast cancer who were confirmed to be preoperative NAC by puncture pathology were selected for a randomised single-blind trial. The patients were randomly divided into an observation group and a control group, with 52 cases in each group.
Fluorescence immunochromatographic assay for deoxynivalenol using immunomagnetic bead purification.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess
January 2025
College of Animal Science and Technology, Beijing University of Agriculture, Beijing, China.
Deoxynivalenol (DON) contaminates various complex matrices, necessitating straightforward, effective cleanup and precise detection methods. This study employed immunomagnetic beads for sample purification and utilized a competitive time-resolved fluoro-immuno-chromatographic assay to achieve quantitative detection of DON in corn and its by-products. The limits of detection and quantification were 104 μg/kg and 243 μg/kg, respectively.
View Article and Find Full Text PDFECM29/proteasome-mediated self-antigen generation by CNS-resident neuroglia promotes regulatory T cell activation.
Cell Rep
January 2025
Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan. Electronic address:
Proteasomes generate antigenic peptides presented on cell surfaces-a process that, in neuroglia, is highly responsive to external stimuli. However, the function of the self-antigens presented by CNS parenchymal cells remains unclear. Here, we report that the fidelity of neuroglial self-antigens is crucial to suppress encephalitogenic T cell responses by elevating regulatory T (Treg) cell populations.
View Article and Find Full Text PDFLoss of Cpt1a results in elevated glucose-fueled mitochondrial oxidative phosphorylation and defective hematopoietic stem cells.
J Clin Invest
January 2025
Department of Cell Systems and Anatomy, UT Health San Antonio, Joe R. and Teresa Lozano Long School of Medicine, San Antonio, United States of America.
Hematopoietic stem cells (HSCs) rely on self-renewal to sustain stem cell potential and undergo differentiation to generate mature blood cells. Mitochondrial fatty acid β-oxidation (FAO) is essential for HSC maintenance. However, the role of Carnitine palmitoyl transferase 1a (CPT1A), a key enzyme in FAO, remains unclear in HSCs.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!