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A Protocol for the Administration of Real-Time fMRI Neurofeedback Training
Published on: August 24, 2017
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EEG subject-dependent neurofeedback training selectively impairs declarative memories consolidation process
G Campos-Arteaga1, J Flores-Torres2, F Rojas-Thomas3
1Universidad Tecnológica Metropolitana, Escuela de Psicología, Santiago, Chile.
Summary
Subject-Dependent Neurofeedback (SD-NFB) selectively weakens specific long-term declarative memories by targeting individual brain patterns during consolidation. This finding has potential clinical applications for memory modulation in neuropsychiatric disorders.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Brain-Computer Interfaces
Background:
- Memory consolidation is crucial for long-term storage and can be influenced by interventions like Neurofeedback (NFB).
- Traditional NFB often uses general parameters, potentially limiting selective memory modulation due to individual neurodynamic differences.
Purpose of the Study:
- To investigate the effects of Subject-Dependent NFB (SD-NFB), utilizing individualized brain activity models, on long-term declarative memory consolidation.
- To determine if SD-NFB can selectively modulate specific memory contents.
Main Methods:
- Participants learned face and house images while EEG data was recorded to build personalized brain activity models.
- Three groups were formed: SD-NFB for faces, SD-NFB for houses, and a sham control group.
- Memory performance was assessed using an 'old-new' recognition task 24 hours and 7 days post-training.
Main Results:
- Trained memory contents (faces or houses) showed lower recognition scores compared to untrained contents.
- This effect was observed both 24 hours and 7 days after the SD-NFB intervention.
- SD-NFB demonstrated selective impact on the consolidation of specific declarative memories.
Conclusions:
- SD-NFB can selectively weaken specific long-term declarative memories.
- This targeted modulation of memory consolidation has potential therapeutic implications for neuropsychiatric disorders.
- Future research could explore SD-NFB for managing pathologically exacerbated memories.
