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Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment
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N-back versus Complex Span Working Memory Training.

Kara J Blacker1, Serban Negoita1, Joshua B Ewen1,2,3

  • 1Department of Psychological & Brain Sciences, Johns Hopkins University.

Journal of Cognitive Enhancement : Towards the Integration of Theory and Practice
|February 13, 2018
PubMed
Summary
This summary is machine-generated.

Working memory (WM) training effectiveness varies. Dual n-back training showed near transfer and increased frontal alpha power, but not improved relational WM or far transfer to fluid intelligence.

Keywords:
alpha powercognitive trainingtransferworking memory

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Area of Science:

  • Cognitive Neuroscience
  • Neuroscience
  • Psychology

Background:

  • Working memory (WM) training's transfer effects are debated.
  • Mechanisms underlying WM training transfer remain unclear.
  • Relational information processing may be key to WM training transfer.

Purpose of the Study:

  • Investigate if dual n-back training relies on relational WM.
  • Determine if relational WM is critical for transfer from n-back training.
  • Examine neural changes associated with different WM training types.

Main Methods:

  • Individual differences analysis correlating n-back and relational WM.
  • Experimental comparison of dual n-back, symmetry span, and control training.
  • EEG recording to assess training-related changes in alpha power.

Main Results:

  • Dual n-back training yielded near transfer but no far transfer to fluid intelligence.
  • Dual n-back training increased frontal alpha power, suggesting altered neural activity.
  • No improvement in relational WM was observed after dual n-back training.

Conclusions:

  • Dual n-back training may elicit near transfer through mechanisms independent of relational WM improvement.
  • Dual n-back and complex span training may differ in transfer efficacy and neural correlates.
  • Further research is needed to elucidate the precise mechanisms of WM training transfer.