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Working Memory

Working 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...

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Utilizing Electroencephalography Measurements for Comparison of Task-Specific Neural Efficiencies: Spatial Intelligence Tasks

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Age-Related Differences in Resting-State EEG and Allocentric Spatial Working Memory Performance.

Adeline Jabès¹, Giuliana Klencklen^1,2, Paolo Ruggeri¹

¹Institute of Psychology, University of Lausanne, Lausanne, Switzerland.

Frontiers in Aging Neuroscience

|November 22, 2021

Summary

This summary is machine-generated.

Older adults show distinct resting-state electroencephalography (EEG) patterns compared to young adults, with specific EEG components correlating with spatial working memory in older individuals. These age-related brain activity differences suggest varying neurobiological underpinnings for working memory.

Keywords:

cognitive performance electroencephalography healthy aging spatial cognition spontaneous brain activity

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Area of Science:

Neuroscience
Cognitive Aging
Electroencephalography

Background:

Normal aging is associated with changes in resting-state brain activity and declines in working memory performance.
Previous research suggests electroencephalography (EEG) measures of resting-state brain activity may correlate with working memory performance differently across age groups.

Purpose of the Study:

To investigate age-group differences in resting-state EEG activity and their correlation with allocentric spatial working memory performance in healthy young and older adults.
To explore the potential of resting-state EEG as a biomarker for working memory performance.

Main Methods:

Recorded resting-state EEG in healthy young (20-30 years) and older (65-75 years) adults under eyes closed and eyes open conditions.
Tested allocentric spatial working memory performance.
Utilized principal component and regression analyses to examine relationships between EEG components and working memory.

Main Results:

Observed age-group differences in resting-state EEG, with older adults generally showing lower theta and alpha band power and higher beta and gamma band relative power.
A principal EEG component (primarily theta, alpha, beta powers) correlated with spatial working memory performance in older adults, but not in young adults.
Individual resting-state EEG measures were not reliable predictors of individual working memory performance in either age group.

Conclusions:

Neurobiological bases of working memory performance may differ between young and older adults.
Resting-state EEG patterns exhibit age-related changes that are linked to spatial working memory capacity in older individuals.
Current resting-state EEG measures are insufficient as standalone biomarkers for predicting individual working memory performance across age groups.