Evidence map›Paper›PMID 29516634›Full record

ArticleHuman brain mapping2018

Diminution of context association memory structure in subjects with subjective cognitive decline.

Ling-Yun Fan, Ya-Mei Lai, Ta-Fu Chen, Yung-Chin Hsu, Pin-Yu Chen, Kuo-Zhou Huang, Ting-Wen Cheng, Wen-Yi Isaac Tseng, Mau-Sun Hua, Ya-Fang Chen and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Human brain mapping, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
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  15. Effect ofFrontiers in psychiatry · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Ling-Yun FanGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
Ya-Mei LaiDepartment of Neurology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.
Ta-Fu ChenDepartment of Neurology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.
Yung-Chin HsuGraduate Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan.
Pin-Yu ChenGraduate Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan.
Kuo-Zhou HuangDepartment of Neurology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.
Ting-Wen ChengGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
Wen-Yi Isaac TsengGraduate Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan.ORCID 0000-0002-2314-6868
Mau-Sun HuaDepartment of Psychology, Asia University, Taichung, Taiwan.
Ya-Fang ChenDepartment of Medical Imaging, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.
Ming-Jang ChiuGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.ORCID 0000-0002-4158-4423
National Taiwan University · TWNational Taiwan University Hospital · TWAsia University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Alzheimer's disease (AD) progresses insidiously from the preclinical stage to dementia. While people with subjective cognitive decline (SCD) have normal cognitive performance, some may be in the preclinical stage of AD. Neurofibrillary tangles appear first in the transentorhinal cortex, followed by the entorhinal cortex in the clinically silent stage of AD. We expected the earliest changes in subjects with SCD to occur in medial temporal subfields other than the hippocampal proper. These selective structural changes would affect specific memory subcomponents. We used the Family Picture subtest of the Wechsler Memory Scale-III, which was modified to separately compute character, activity, and location subscores for episodic memory subcomponents. We recruited 43 subjects with SCD, 44 subjects with amnesic mild cognitive impairment, and 34 normal controls. MRI was used to assess cortical thickness, subcortical gray matter volume, and fractional anisotropy. The results demonstrated that SCD subjects showed significant cortical atrophy in their bilateral parahippocampus and perirhinal and the left entorhinal cortices but not in their hippocampal regions. SCD subjects also exhibited significantly decreased mean fractional anisotropy in their bilateral uncinate fasciculi. The diminution of cortical thickness over the mesial temporal subfields corresponded to brain areas with early tangle deposition, and early degradation of the uncinate fasciculus was in accordance with the retrogenesis hypothesis. The parahippocampus and perirhinal cortex contribute mainly to context association memory while the entorhinal cortex, along with the uncinate fasciculus, contributes to content-related contextual memory. We proposed that context association and related memory structures are vulnerable in the SCD stage.

Indexed as

Brain MappingMemory, EpisodicAgedAged, 80 and overAnalysis of VarianceAnisotropyAtrophyBrainCase-Control StudiesCognitive DysfunctionDecision Making, Computer-AssistedDisease ProgressionFemaleHumansMagnetic Resonance ImagingMalecontext memorycortical thicknessentorhinal cortexparahippocampusperirhinal cortexsubjective cognitive declineuncinate fasciculus

Identifiers

PMID29516634
PMCPMC6866359
OpenAlexW2789709007

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.