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Enhancing cognitive control through neurofeedback: A role of gamma-band activity in managing episodic retrieval

STS Instructor Authored by Andre Keizer

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Check out this Knowledge Base article from StressTherapy Solutions: Enhancing cognitive control through neurofeedback: A role of gamma-band activity in managing episodic retrieval.

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Study at a glance

Area
Ageing, Memory & Cognition
Study type
Controlled study
Authors
Keizer AW, Verment RS, Hommel B
Journal
NeuroImage
Year
2009
Protocol
gamma (36-44 Hz) vs beta (12-20 Hz) enhancement neurofeedback

Key findings

  • Gamma training increased occipital gamma within sessions and occipital and frontal gamma across sessions
  • Gamma group handled stored feature combinations more flexibly, replicating earlier work
  • Gamma training improved recollection memory; beta training improved familiarity memory
  • Beta group also gained frontal-occipital beta coherence

DOI 10.1016/j.neuroimage.2009.11.023 → PubMed 19925870 →

This study compared two neurofeedback programs, one rewarding gamma activity (36-44 Hz) and one rewarding beta activity (12-20 Hz), to see how each affected short-term and long-term memory for linked information. Gamma training raised gamma activity over the back of the head within sessions and over both back and front across sessions, and both groups showed more front-to-back gamma coherence. The two protocols had different effects on memory: gamma training helped people retrieve bound features more flexibly and improved recollection, while beta training improved the sense of familiarity.