日常认知中的特定领域变化:与诊断变化和灰质体积变化的关联
Brandon E Gavett1, Dan Mungas1, Evan Fletcher1
1Department of Neurology, University of California, Davis.
Neuropsychology
|October 23, 2025
概括
每天的认知能力随着疾病的进展而不同地下降,但随着时间的推移,随着大脑缩而均地下降. 日常认知 (ECog) 尺度追踪这些变化,反映了老年人灰质损失和临床严重程度.
科学领域:
- 老年学是一门学科.
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
背景情况:
- 老年人的日常认知功能通常会下降.
- 日常认知 (ECog) 尺度衡量了知情者评级的认知能力.
研究的目的:
- 检查信息人评级的日常认知能力如何随着时间的推移而变化.
- 研究认知变化与神经成像数据之间的关系.
主要方法:
- 在4.4年内对891名老年人 (平均年龄76.1岁) 进行了长度研究.
- 年度ECog评估和多层次β回归.
- 在子样本中对灰质和海马体积的神经成像分析 (N=264).
主要成果:
- 随着诊断的变化,ECog域以不同的速度发生变化,特别是在轻度认知障碍 (MCI) 到痴呆症组中.
- ECog域随着灰色物质体积的变化而变化均.
- 灰质和海马缩预测ECog得分变化;海马体积预测基线ECog得分.
结论:
- ECog尺度对潜在的灰质缩和临床疾病严重程度的变化敏感.
- 纵向ECog评估可以跟踪老年人的认知变化.
- 由于ECog分数的潜在地板和天花板影响,建议谨慎使用.
更多相关视频
09:06Whole-brain Segmentation and Change-point Analysis of Anatomical Brain MRI—Application in Premanifest Huntington's Disease
Published on: June 9, 2018
12.6K
06:26Meta-analysis of Voxel-Based Neuroimaging Studies using Seed-based d Mapping with Permutation of Subject Images SDM-PSI
Published on: November 27, 2019
77.1K
相关概念视频
01:30Cognitive Development During Adulthood
770
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
770
01:27Language and Cognition
704
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
704
01:26Alzheimer's Disease: Overview
1.6K
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
1.6K
01:30Dementia
515
Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual....
The progression of dementia is generally gradual....
515
01:27Diagnostic and Statistical Manual of Mental Disorders (DSM)
1.0K
The Diagnostic and Statistical Manual of Mental Disorders (DSM) serves as the primary classification system for mental health disorders, providing standardized diagnostic criteria for clinicians and researchers. First published by the American Psychiatric Association (APA) in 1952, the DSM has undergone several revisions to reflect evolving psychiatric understanding. The fifth edition, DSM-5, released in 2013, introduced key updates that expanded diagnostic categories and modified diagnostic...
1.0K
01:30Impact of Schemas
191
Schemas are cognitive structures that provide a framework for interpreting and organizing social information. They help individuals navigate complex environments by offering expectations about people, events, and behaviors. Schemas influence attention, encoding, and retrieval processes, thereby shaping the entire trajectory of information processing in social contexts.Attention and Cognitive LoadDuring initial attention, schemas function as filters that prioritize schema-consistent information,...
191