None listed
Conditions
Brief summary
EEG biofeedback is a form of brain training where we take recordings of brain activity from the scalp, analyse the data for specific patterns from a specific part of the brain called th Posterior Cingulate Cortex, and display it graphically on a computer screen. Participants then use their own willpower to alter their brain activity. It is a non-invasive and safe procedure to undergo. We are aiming to recruit people with a mild memory deficit to see whether we can change these rhythms, in order to improve their memory function on objective testing.
Interventions
15 sessions of source localised EEG biofeedback, using sLORETA, of the posterior Cingulate Cortex, designed to train up theta and alpha band frequencies, and decrease beta band frequencies. At each session, a 21 electrode EEG cap is worn by the participants, which includes 2 reference ear electrodes and a ground electrode. The 19 remaining channels produce an EEG montage referenced to the average on a laptop computer. The current density of the relevant frequency bands is calculated in real time
15 sessions of source localised EEG biofeedback, using sLORETA, of the posterior Cingulate Cortex, designed to train up theta and alpha band frequencies, and decrease beta band frequencies. At each session, a 21 electrode EEG cap is worn by the participants, which includes 2 reference ear electrodes and a ground electrode. The 19 remaining channels produce an EEG montage referenced to the average on a laptop computer. The current density of the relevant frequency bands is calculated in real time over a four second interval, and the result displayed to the participant as the height of a vertical bar on the screen. The participant is then asked to try and keep the bar in the top half of the screen as much as possible. Each session has 30 minutes of active training with 1 minute relaxation at 5 mintues intervals thoughout. Participants complete a maximum of three and a minimum of 2 sessions a week, until they have completed 15 sessions. 15 sessions of source localised EEG biofeedback, using sLORETA, of the posterior Cingulate Cortex, designed to train up alpha band frequencies, and decrease beta band frequencies. At each session, a 21 electrode EEG cap is worn by the participants, which includes 2 reference ear electrodes and a ground electrode. The 19 remaining channels produce an EEG montage referenced to the average on a laptop computer. The current density of the relevant frequency bands is calculated in real time over a four second interval, and the result displayed to the participant as the height of a vertical bar on the screen. The participant is then asked to try and keep the bar in the top half of the screen as much as possible. Each session has 30 minutes of active training with 1 minute relaxation at 5 mintues intervals thoughout. Participants complete a maximum of three and a minimum of 2 sessions a week, until they have completed 15 sessions. All sessions in all groups are carried out at Dunedin Hospital, supervised by a PhD student.
Sponsors
University of Otago, Dunedin School of Medicine
Study design
Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject)
Eligibility
Sex/Gender
All
Age
40 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
Score below 90 on the immediate memory index of the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS)
Exclusion criteria
Participants must be free of significant neurological or psychiatric disease. Mild depression or anxiety is permitted. Participants who score below 21/30 on the Mini Mental State Examination are excluded from the study
Outcome results
None listed