Related Experiment Video
Updated: Jun 23, 2026
10:13
Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
Published on: February 14, 2014
Visual function and cognitive speed of processing mediate age-related decline in memory span and fluid intelligence
Olivio J Clay1, Jerri D Edwards, Lesley A Ross
1Department of Psychology, University of Alabama at Birmingham, 415 Campbell Hall, 1300 University Boulevard, Birmingham, Alabama 35294-1170, USA. oclay@uab.edu
Journal of Aging and Health
|May 14, 2009
Summary
Sensory decline, like vision loss, can slow processing speed, leading to cognitive deficits in older adults. Maintaining sensory function may preserve fluid intelligence with aging.
Area of Science:
- Gerontology
- Cognitive Neuroscience
- Sensory Science
Background:
- Age-related cognitive decline is a significant concern.
- Understanding the interplay between sensory function and cognition is crucial for healthy aging.
Purpose of the Study:
- To examine the links between sensory decline, processing speed, memory span, and fluid intelligence in older adults.
- To compare the sensory degradation and speed of processing hypotheses for cognitive aging.
Main Methods:
- Structural equation modeling was employed to analyze complex relationships.
- Cross-sectional data from 842 older adults (mean age = 73 years) were analyzed.
Main Results:
- Age-related declines in vision were linked to slower processing speed.
- Slower processing speed was associated with greater cognitive deficits.
- Direct links between age and memory span or fluid intelligence were not significant after accounting for vision and processing speed.
Conclusions:
- Findings support both sensory degradation and speed of processing as explanations for age-related cognitive decline.
- Preserving visual sensory function and processing speed may mitigate cognitive decline and maintain fluid intelligence in aging individuals.
More Related Videos
Related Concept Videos
01:30Cognitive Development During Adulthood
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,...
01:22Dementia l: Introduction
Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
01:24Working Memory
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this information.
01:29Alzheimer Disease l: Introduction
Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...
01:30Information Processing Approach
The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is also...
01:27Language and Cognition
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.