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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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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,...
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Related Experiment Video

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Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment
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Left-prefrontal alpha-dynamics predict executive working-memory functioning in elderly people.

Oded Meiron1, Elishai Ezra Tsur2, Hagai Factor1

  • 1Clinical Research Center for Brain Sciences, Herzog Medical Center, Jerusalem, Israel.

Cognitive Neuroscience
|April 22, 2021
PubMed
Summary
This summary is machine-generated.

Electroencephalography (EEG) alpha and theta oscillations reveal brain activity linked to executive working memory (EWM) in older adults. Altered patterns may indicate cognitive decline or neurological disorders.

Keywords:
Alpha anteriorizationDorsolateral prefrontal cortex (DLPFC)Executive attention

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Gerontology

Background:

  • Electroencephalography (EEG) theta and alpha oscillations are linked to cognitive control and executive working memory (EWM) in humans.
  • Age-related neurological changes may alter these brain oscillations, potentially indicating pre-dementia or cognitive impairments in older adults.

Purpose of the Study:

  • To assess executive working memory (EWM) functioning in older adults using EEG.
  • To investigate the relationship between WM performance, EEG oscillations, and cognitive function in aging.

Main Methods:

  • Recorded EEG oscillations and WM performance in older adults (54-83 years) during online and offline WM tasks.
  • Analyzed left-prefrontal alpha power and anterior-posterior theta power gradients during various WM states.

Main Results:

  • Left-prefrontal alpha power was higher during offline WM periods and correlated with WM accuracy.
  • Alpha and theta power gradients during online WM related to reaction times.
  • Excessive left-prefrontal alpha activity during specific WM events was linked to poorer EWM performance.

Conclusions:

  • EEG oscillations, particularly left-prefrontal alpha activity, are associated with EWM performance in older adults.
  • Findings suggest potential for EEG-based biomarkers for monitoring cognitive decline and developing cognition-enhancing interventions in the elderly.