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Neurofeedback training on sensorimotor rhythm in marmoset monkeys
Ingrid H C H M Philippens1, Raymond A P Vanwersch
1Department of Immunobiology, Biomedical Primate Research Centre, Rijswijk, The Netherlands. philippens@bprc.nl
Neuroreport
|February 27, 2010
Summary
This study demonstrates that marmoset monkeys can voluntarily control their brain activity through sensorimotor rhythm (SMR) neurofeedback. This research provides the first evidence of nonhuman primates achieving operant control over SMR, paving the way for more rigorous neurofeedback studies.
Area of Science:
- Neuroscience
- Animal Behavior
- Biofeedback
Background:
- Neurofeedback research requires models that minimize placebo effects.
- Standardized, controlled research is needed to validate empirical findings.
- Nonhuman primates offer a valuable model for studying brain activity control.
Purpose of the Study:
- To investigate the capacity of nonhuman primates to voluntarily control their brain activity using neurofeedback.
- To establish a scientific basis for neurofeedback by examining operant control over brain rhythms in marmosets.
Main Methods:
- Telemetric sensorimotor rhythm (SMR) feedback training was applied to four marmoset monkeys.
- Monkeys were implanted with epidural electrodes over the sensorimotor cortex.
- Positive reinforcement was used during 30-minute sessions analyzing electroencephalogram (EEG) epochs for SMR (11-14 Hz).
Main Results:
- Marmoset monkeys learned to increase their alpha activity within five training sessions.
- This study provides the first evidence of nonhuman primates exhibiting operant control over SMR.
- The findings suggest voluntary modulation of specific brainwave frequencies is achievable.
Conclusions:
- Nonhuman primates can achieve voluntary control over sensorimotor rhythm (SMR) brain activity through neurofeedback.
- This research establishes a crucial step towards a scientifically rigorous foundation for neurofeedback.
- Marmoset models are suitable for future neurofeedback research, aiding in the exclusion of placebo effects.
