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Article: Neural and Retinal Characteristics in Relation to Working Memory in Older Adults with Mild Cognitive Impairment

TitleNeural and Retinal Characteristics in Relation to Working Memory in Older Adults with Mild Cognitive Impairment
Authors
KeywordsMild cognitive impairment
retinal perfusion density
retinal vessel density
working memory
event-related potential
Issue Date2021
PublisherBentham Science Publishers Ltd. The Journal's web site is located at http://www.bentham.org/car/
Citation
Current Alzheimer Research, 2021, v. 18 n. 3, p. 185-195 How to Cite?
AbstractObjective: This study investigated the relationship between neural activities and retinal structures associated with working memory (WM) in older adults with mild cognitive impairment (MCI). Methods: Eleven older adults with MCI and 29 healthy controls (60 to 73 years old) were tested. All participants underwent an event-related potential (ERP) recording while performing the two-back memory task. The Optical coherence tomography angiography (OCT-A) was administered to examine the perfusion and vessel density in the retina. Results: Results showed that WM performance in the MCI group was negatively associated with ERP latencies in central parietal regions (CP6 and CP8) (ps< 0.05). The left nasal vessel and perfusion densities were negatively correlated with the latencies in these two central parietal regions and positively related to WM performance only in the MCI group (ps< 0.05). Conclusion: The findings on WM, central parietal brain activity, and left nasal vessel and perfusion densities in the retina help us gain a better understanding of the neural and retinal underpinnings of WM in relation to MCI.
Persistent Identifierhttp://hdl.handle.net/10722/300608
ISSN
2020 Impact Factor: 3.498
2015 SCImago Journal Rankings: 1.605

 

DC FieldValueLanguage
dc.contributor.authorWong, MNK-
dc.contributor.authorLai, DWL-
dc.contributor.authorChan, HHL-
dc.contributor.authorLam, BYH-
dc.date.accessioned2021-06-18T14:54:26Z-
dc.date.available2021-06-18T14:54:26Z-
dc.date.issued2021-
dc.identifier.citationCurrent Alzheimer Research, 2021, v. 18 n. 3, p. 185-195-
dc.identifier.issn1567-2050-
dc.identifier.urihttp://hdl.handle.net/10722/300608-
dc.description.abstractObjective: This study investigated the relationship between neural activities and retinal structures associated with working memory (WM) in older adults with mild cognitive impairment (MCI). Methods: Eleven older adults with MCI and 29 healthy controls (60 to 73 years old) were tested. All participants underwent an event-related potential (ERP) recording while performing the two-back memory task. The Optical coherence tomography angiography (OCT-A) was administered to examine the perfusion and vessel density in the retina. Results: Results showed that WM performance in the MCI group was negatively associated with ERP latencies in central parietal regions (CP6 and CP8) (ps< 0.05). The left nasal vessel and perfusion densities were negatively correlated with the latencies in these two central parietal regions and positively related to WM performance only in the MCI group (ps< 0.05). Conclusion: The findings on WM, central parietal brain activity, and left nasal vessel and perfusion densities in the retina help us gain a better understanding of the neural and retinal underpinnings of WM in relation to MCI.-
dc.languageeng-
dc.publisherBentham Science Publishers Ltd. The Journal's web site is located at http://www.bentham.org/car/-
dc.relation.ispartofCurrent Alzheimer Research-
dc.subjectMild cognitive impairment-
dc.subjectretinal perfusion density-
dc.subjectretinal vessel density-
dc.subjectworking memory-
dc.subjectevent-related potential-
dc.titleNeural and Retinal Characteristics in Relation to Working Memory in Older Adults with Mild Cognitive Impairment-
dc.typeArticle-
dc.identifier.emailLam, BYH: byinhlam@hku.hk-
dc.identifier.authorityLam, BYH=rp02724-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.2174/1567205018666210608114044-
dc.identifier.pmid34102976-
dc.identifier.hkuros322938-
dc.identifier.volume18-
dc.identifier.issue3-
dc.identifier.spage185-
dc.identifier.epage195-
dc.publisher.placeNetherlands-

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