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Related Concept Videos

Working Memory01:24

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 information.

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Alpha phase locking predicts residual working memory performance in schizophrenia.

Corinna Haenschel1, David E Linden, Robert A Bittner

  • 1Welsh Institute of Cognitive Neuroscience, School of Psychology, Bangor University, Gwynedd, United Kingdom. c.haenschel@bangor.ac.uk

Biological Psychiatry
|August 3, 2010
PubMed
Summary
This summary is machine-generated.

Alpha phase locking in the electroencephalogram supports visual working memory (WM) encoding in schizophrenia. Some patients with schizophrenia exhibit preserved alpha phase locking, enabling normal WM performance.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Psychiatry

Background:

  • Working memory (WM) deficits are a hallmark of schizophrenia, particularly in visual encoding.
  • Despite impairments, schizophrenia patients show above-chance performance, suggesting residual cognitive mechanisms.
  • Alpha phase locking in electroencephalography (EEG) may indicate these residual mechanisms.

Purpose of the Study:

  • To investigate the role of alpha phase locking in visual working memory encoding in early-onset schizophrenia (EOS).
  • To compare alpha phase locking between EOS patients and healthy controls.
  • To correlate alpha phase locking with working memory accuracy.

Main Methods:

  • Compared alpha phase locking during WM encoding in 17 EOS patients and 17 controls.
  • Correlated phase locking results with task accuracy.
  • Grouped EOS patients by high/low alpha phase locking for performance comparison.

Main Results:

  • Alpha phase locking increased with memory load in both groups, but was generally lower in EOS.
  • A positive correlation between alpha phase locking and performance was observed in EOS patients.
  • EOS patients with high alpha phase locking performed similarly to controls.

Conclusions:

  • Alpha phase locking is linked to visual working memory encoding.
  • This neural mechanism is preserved in some schizophrenia patients, supporting normal performance levels.