People vary in their performance on visual working memory tasks, and these individual differences covary with a wide range of higher-level cognitive processes including fluid intelligence. Performance also varies across study displays, purportedly driven by both low- and higher-level processes. Understanding what causes these sources of systematic variability has been crucial for developing theories of working memory. However, here we find that all such variability in performance on a test of visual working memory can be accounted for by concurrent variability in visual iconic memory: A person with relatively high working memory capacity will have high iconic memory capacity, and a particularly easy working memory display will also be easy under iconic memory conditions. These results are supported by a nonparametric factor analysis and hierarchical Bayesian model comparison. In a second experiment the relationship between iconic and working memory holds even when they are measured with substantially different experimental paradigms, and a third experiment suggests that the relationship between tests of iconic and working memory is driven by mechanisms other than iconic or working memory storage, such as variation in perceptual or attentional processes. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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http://dx.doi.org/10.1037/xlm0001202 | DOI Listing |
Prog Neuropsychopharmacol Biol Psychiatry
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Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas (LaftamBio Pampa), Universidade Federal do Pampa, Itaqui, RS, Brazil. Electronic address:
Amphetamine (AMPH) abuse represents a major global public health issue, highlighting the urgent need for effective therapeutic interventions to manage addiction caused by this psychostimulant. This study aimed to assess the potential of m-trifluoromethyl-diphenyldiselenide [(m-CF-PhSe)] in preventing the addictive effects induced by AMPH through targeting dopamine metabolism proteins. (m-CF-PhSe) is of interest due to its demonstrated efficacy in mitigating opioid abuse, establishing it as a promising candidate for addiction treatment research.
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December 2024
School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China.
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View Article and Find Full Text PDFZh Nevrol Psikhiatr Im S S Korsakova
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Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia.
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BMC Psychiatry
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Department of Clinical, Neuro- and Developmental Psychology, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
Background: There is robust evidence that posttraumatic stress disorder (PTSD) is associated with neurocognitive deficits, such as executive dysfunction or memory dysfunction. Eye Movement Desensitization and Reprocessing (EMDR) is an evidence-based treatment for PTSD, in which eye movements (EMs) are performed during traumatic memory retrieval. We examined whether Eye Movement Desensitization (EMD) improves neurocognitive functioning in PTSD patients, in comparison with a retrieval-only control condition without EMs.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Electronics, Information and Communication Engineering, Kangwon National University, Samcheok, 25913, Republic of Korea.
Autism spectrum disorder (ASD) is a neurologic disorder considered to cause discrepancies in physical activities, social skills, and cognition. There is no specific medicine for treating this disorder; early intervention is critical to improving brain function. Additionally, the lack of a clinical test for detecting ASD makes diagnosis challenging.
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