Age-related neural dedifferentiation and cognition
نویسندگان
چکیده
منابع مشابه
Age-Related Neural Dedifferentiation in the Motor System
Recent neuroimaging studies using multi-voxel pattern analysis (MVPA) show that distributed patterns of brain activation elicited by different visual stimuli are less distinctive in older adults than in young adults. However, less is known about the effects of aging on the neural representation of movement. The present study used MVPA to compare the distinctiveness of motor representations in y...
متن کاملAge-related dedifferentiation of visuospatial abilities.
Forty-eight older adults were tested on a battery of seven speeded visuospatial tasks that were developed by Chen et al. to measure the functions of the ventral and dorsal neural processing streams. Principal components analysis revealed only one factor with an eigenvalue greater than 1.0, and all of the tasks loaded heavily on this general factor. These results are in contrast to those reporte...
متن کاملCognition in aging and age-related disease
Chapter Synopsis Aging can have diverse effects on cognitive function. For many people, aging is associated with relatively little cognitive decline ( “healthy” or “successful” aging). For some, memory declines significantly with age, but does not prevent performance of daily activities ( “mild cognitive impairment”). For others, aging is associated with severe cognitive deficits that impede th...
متن کاملNeural broadening or neural attenuation? Investigating age-related dedifferentiation in the face network in a large lifespan sample.
Previous studies have found that cortical responses to different stimuli become less distinctive as people get older. This age-related dedifferentiation may reflect the broadening of the tuning curves of category-selective neurons (broadening hypothesis) or it may be due to decreased activation of category-selective neurons (attenuation hypothesis). In this study, we evaluated these hypotheses ...
متن کاملRunning head : AGE - RELATED NEURAL DIFFERENCES Age - related Neural Differences in Affiliation and Isolation
While previous aging studies have focused on particular components of social perception (e.g., theory of mind, self-referencing), little is known about age-related differences specifically for the neural basis of perception of affiliation and isolation. This study investigates age-related similarities and differences in the neural basis of affiliation and isolation. Participants viewed images o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Current Opinion in Behavioral Sciences
سال: 2020
ISSN: 2352-1546
DOI: 10.1016/j.cobeha.2020.01.006