Related Experiment Video
Updated: May 27, 2026
10:13
Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
Published on: February 14, 2014
Specific measures of executive function predict cognitive decline in older adults
Lindsay R Clark1, Dawn M Schiehser, Gali H Weissberger
1San Diego State University/University of California San Diego Joint Doctoral Program in Clinical Psychology, 3350 La Jolla Village Drive, San Diego, CA 92161, USA.
Journal of the International Neuropsychological Society : JINS
|November 26, 2011
Summary
Certain executive function tests, specifically those involving inhibition and switching, can predict future cognitive decline in older adults. These findings may aid in the early detection of Alzheimer's disease (AD).
Area of Science:
- Neuroscience
- Cognitive Psychology
- Gerontology
Background:
- Executive function decline is an early indicator in prodromal Alzheimer's disease (AD), potentially preceding broader cognitive impairment.
- Identifying predictive markers for cognitive decline is crucial for early intervention in aging populations.
Purpose of the Study:
- To investigate the predictive utility of specific executive function measures for subsequent global cognitive decline in nondemented older adults.
- To determine if executive function tests can predict decline independently of memory measures.
Main Methods:
- Prospective longitudinal study of 71 initially nondemented older adults.
- Assessed executive functions using five distinct measures, including the Color-Word Interference Test (CWIT) and Verbal Fluency (VF).
- Compared performance on executive function tasks between participants who declined globally over one year and those who remained stable.
Main Results:
- Participants showing global cognitive decline performed significantly worse on CWIT (inhibition/switching) and VF (switching) in the year prior to decline.
- Performance on spatial fluency, spatial planning, and number-letter switching tasks did not differentiate between decline and no-decline groups.
- The CWIT inhibition-switching measure enhanced the prediction of cognitive decline beyond learning and memory assessments.
Conclusions:
- Executive function measures involving inhibition and switching, particularly CWIT, show predictive value for subsequent global cognitive decline.
- These specific executive function tests may offer an independent marker for early dementia detection, separate from episodic memory deficits.
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,...
01:30Information 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...
01:29Alzheimer 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...
01:30Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function. They...
01:27Pharmacodynamics in Geriatric Patients: Effects of Age
Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
01:29Measures of Intelligence
Psychologists measure intelligence by using standardized tests that produce a score known as the intelligence quotient or IQ. To understand IQ tests, it's important to recognize the key principles behind their construction: validity, reliability, and standardization.
Validity refers to how well a test measures what it claims to measure. An intelligence test should accurately assess intelligence rather than another characteristic, like anxiety. Criterion validity is one way to evaluate this; it...
Validity refers to how well a test measures what it claims to measure. An intelligence test should accurately assess intelligence rather than another characteristic, like anxiety. Criterion validity is one way to evaluate this; it...