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Fan D, Che X, Jiang Y, He Q, Yu J, Zhao H. Noninvasive brain stimulations modulated brain modular interactions to ameliorate working memory in community-dwelling older adults. Cereb Cortex 2024; 34:bhae140. [PMID: 38602739 DOI: 10.1093/cercor/bhae140] [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: 01/15/2024] [Revised: 03/15/2024] [Accepted: 03/16/2024] [Indexed: 04/12/2024] Open
Abstract
Non-invasive brain stimulations have drawn attention in remediating memory decline in older adults. However, it remains unclear regarding the cognitive and neural mechanisms underpinning the neurostimulation effects on memory rehabilitation. We evaluated the intervention effects of 2-weeks of neurostimulations (high-definition transcranial direct current stimulation, HD-tDCS, and electroacupuncture, EA versus controls, CN) on brain activities and functional connectivity during a working memory task in normally cognitive older adults (age 60+, n = 60). Results showed that HD-tDCS and EA significantly improved the cognitive performance, potentiated the brain activities of overlapping neural substrates (i.e. hippocampus, dlPFC, and lingual gyrus) associated with explicit and implicit memory, and modulated the nodal topological properties and brain modular interactions manifesting as increased intramodular connection of the limbic-system dominated network, decreased intramodular connection of default-mode-like network, as well as stronger intermodular connection between frontal-dominated network and limbic-system-dominated network. Predictive model further identified the neuro-behavioral association between modular connections and working memory. This preliminary study provides evidence that noninvasive neurostimulations can improve older adults' working memory through potentiating the brain activity of working memory-related areas and mediating the modular interactions of related brain networks. These findings have important implication for remediating older adults' working memory and cognitive declines.
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Affiliation(s)
- Dongqiong Fan
- Faculty of Psychology, Southwest University, 2 Tiansheng Rd, Chongqing 400715, China
- School of Biological Science and Medical Engineering, Beihang University, 29 Zhichun Rd, Beijing 100191, China
| | - Xianwei Che
- Centre for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, 2318 Yuhangtang Rd, Hangzhou 310015, China
| | - Yang Jiang
- Department of Behavioral Science, University of Kentucky College of Medicine, 109 Medical Behavioral Science Building, Lexington, KY 40536, USA
| | - Qinghua He
- Faculty of Psychology, Southwest University, 2 Tiansheng Rd, Chongqing 400715, China
| | - Jing Yu
- Faculty of Psychology, Southwest University, 2 Tiansheng Rd, Chongqing 400715, China
| | - Haichao Zhao
- Faculty of Psychology, Southwest University, 2 Tiansheng Rd, Chongqing 400715, China
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, 19 Xinjiekouwai St, Beijing 100875, China
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De Wit L, Piai V, Thangwaritorn P, Johnson B, O'Shea D, Amofa P, Marsiske M, Kessels RPC, Schaefer N, Smith G. Repetition Priming in Individuals with Amnestic Mild Cognitive Impairment and Alzheimer's Dementia: a Systematic Review and Meta-Analysis. Neuropsychol Rev 2021; 32:228-246. [PMID: 33895980 PMCID: PMC9090892 DOI: 10.1007/s11065-021-09504-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 04/05/2021] [Indexed: 11/28/2022]
Abstract
The literature on repetition priming in Alzheimer's disease (AD) is inconsistent, with some findings supporting spared priming while others do not. Several factors may explain these inconsistencies, including AD severity (e.g., dementia vs. Mild Cognitive Impairment; MCI) and priming paradigm-related characteristics. This systematic review and meta-analysis provides a quantitative summary of repetition priming in AD. We examined the between-group standard mean difference comparing repetition priming in AD dementia or amnestic MCI (aMCI; presumably due to AD) to controls. Thirty-two studies were selected, including 590 individuals with AD dementia, 267 individuals with amnestic MCI, and 703 controls. Our results indicated that both individuals with aMCI and AD dementia perform worse on repetition priming tasks than cognitively older adults. Paradigm-related moderators suggested that the effect size between studies comparing the combined aMCI or AD dementia group to cognitively healthy older adults was the highest for paradigms that required participants to produce, rather than identify, primes during the test phase. Our results further suggested that priming in AD is impaired for both conceptual and perceptual priming tasks. Lastly, while our results suggested that priming in AD is impaired for priming tasks that require deep processing, we were unable to draw firm conclusions about whether priming is less impaired in aMCI or AD dementia for paradigms that require shallow processing.
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Affiliation(s)
- Liselotte De Wit
- Department of Clinical and Health Psychology, University of Florida, P.O. Box 100165, 32610-0165, Gainesville, FL, USA.,Donders Institute for Brain, Cognition and Behaviour, Centre for Cognition, Radboud University, Thomas van Aquinostraat 4, 6525 GD, Nijmegen, Netherlands
| | - Vitoria Piai
- Donders Institute for Brain, Cognition and Behaviour, Centre for Cognition, Radboud University, Thomas van Aquinostraat 4, 6525 GD, Nijmegen, Netherlands.,Donders Institute for Brain, Cognition and Behaviour, Centre for Medical Neuroscience, Department of Medical Psychology, Radboud University Medical Center, PO Box 9101, 6500 HB,, Nijmegen, Netherlands
| | - Pilar Thangwaritorn
- Department of Clinical and Health Psychology, University of Florida, P.O. Box 100165, 32610-0165, Gainesville, FL, USA
| | - Brynn Johnson
- Department of Clinical and Health Psychology, University of Florida, P.O. Box 100165, 32610-0165, Gainesville, FL, USA
| | - Deirdre O'Shea
- Department of Clinical and Health Psychology, University of Florida, P.O. Box 100165, 32610-0165, Gainesville, FL, USA
| | - Priscilla Amofa
- Department of Clinical and Health Psychology, University of Florida, P.O. Box 100165, 32610-0165, Gainesville, FL, USA
| | - Michael Marsiske
- Department of Clinical and Health Psychology, University of Florida, P.O. Box 100165, 32610-0165, Gainesville, FL, USA
| | - Roy P C Kessels
- Donders Institute for Brain, Cognition and Behaviour, Centre for Cognition, Radboud University, Thomas van Aquinostraat 4, 6525 GD, Nijmegen, Netherlands. .,Donders Institute for Brain, Cognition and Behaviour, Centre for Medical Neuroscience, Department of Medical Psychology, Radboud University Medical Center, PO Box 9101, 6500 HB,, Nijmegen, Netherlands.
| | - Nancy Schaefer
- University of Florida Health Science Center Libraries, University of Florida, SW Archer Rd, 32610, Gainesville, FL, USA
| | - Glenn Smith
- Department of Clinical and Health Psychology, University of Florida, P.O. Box 100165, 32610-0165, Gainesville, FL, USA
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O'Shea DM, De Wit L, Yutsis M, Castro M, Smith GE. Repetition priming in mild cognitive impairment and mild dementia: Impact of educational attainment. J Clin Exp Neuropsychol 2017; 40:338-346. [PMID: 28671486 DOI: 10.1080/13803395.2017.1347253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE To examine the role of education on repetition priming performances in healthy aging, mild cognitive impairment (MCI), and mild dementia. METHOD A total of 72 participants (healthy = 27, with MCI = 28, with mild dementia = 17) took part in the present study. Priming was assessed using the Word Stem Completion Test, and delayed and recognition memory was assessed using the Rey Auditory Verbal Learning Test. A multinomial regression analysis was used to examine whether years of education moderated priming and declarative memory performances in predicting group membership. RESULTS Priming performances discriminated between individuals with MCI and mild dementia but not between MCI and healthy. Additionally, this effect was most salient in individuals with low levels of education. Education did not moderate explicit memory performances in predicting group membership. CONCLUSION Little is known about the impact of education on priming in verbal memory. Our findings indicate that formal years of education impact priming performances in MCI and individuals with mild dementia, which may have implications for designing interventions targeting "intact" cognitive abilities in these groups.
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Affiliation(s)
- Deirdre M O'Shea
- a Department of Clinical and Health Psychology , University of Florida , Gainesville , FL , USA
| | - Liselotte De Wit
- a Department of Clinical and Health Psychology , University of Florida , Gainesville , FL , USA
| | - Maya Yutsis
- b Stanford Health Care , Stanford University School of Medicine, Neurology and Neurological Sciences , Palo Alto , CA , USA
| | - Melissa Castro
- c Minneapolis Clinic of Neurology , Minneapolis , MN , USA
| | - Glenn E Smith
- a Department of Clinical and Health Psychology , University of Florida , Gainesville , FL , USA.,d Department of Psychiatry and Psychology , Mayo Clinic , Rochester , MN , USA
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