Having a MEG scan

Magnetoencephalography (MEG) and electroencephalography (EEG) are brain imaging methods that measure tiny changes in the brain’s magnetic and electrical fields. These scans allow us to track the timing of brain activity to a precision of around 10 milliseconds. This very high resolution measurement of the timing of brain activity can be used to understand normal processes in the brain, and how things might go wrong in diseases such as Alzheimer’s disease.

During MEG and EEG scans people are usually given a task to do, and brain activity is measured whilst the person does that task. A special cap is worn which contains electrodes that measure the brain’s electrical activity.

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Who are we?

Alzheimer's Society is the leading support and research charity for people with dementia, their families and carers.

What is dementia?

The term 'dementia' is used to describe the symptoms that occur when the brain is affected by specific diseases and conditions. Symptoms of dementia include loss of memory, confusion and problems with speech and understanding.

Support the fight against dementia and visit us at
http://www.alzheimers.org.uk

If you have concerns about Alzheimer's disease or about any other form of dementia, please contact the Alzheimer's Society National Dementia Helpline on 0300 222 1122.

Alzheimer's Society
Leading the fight against dementia