Among the most compelling arguments in favour of Daily Meditation providing benefits to humans is research undertaken by Professor Sara Lazar, a neuroscientist at Massachusetts General Hospital.
MRI Study
In her first study on this subject, Professor Lazar utilised a Magnetic Resonance Imaging machine (MRI).
The study involved two groups of people; a group who had never meditated before and another group that meditated on a regular basis.
The subjects within both groups had their brains scanned using an MRI scanner. It was found that there was more grey matter in the group of meditators than that of the non-meditators.
8-Week Mindfulness Stress Reduction MBSR Study
Following the success of her first study, Dr. Lazar embarked on a second study; involving a group of ‘non-meditators’, with whom she began an 8-week meditation programme.
Both before and after completion of their 8-week programme this group then had their brains scanned, Professor Lazar found that after just 8 weeks the brain structure of the subjects had changed.
The hippocampus area of the brain had grown.
This is significant because individuals who suffer from depression or post-traumatic stress disorder (PTSD) have been associated to a small hippocampus.
If meditating regularly can increase the size of one’s hippocampus, then meditating can help to alleviate symptoms of depression and PTSD.
The MRI scans undertaken by Professor Lazar also observed that areas of the brain associated with:
• Empathy
• Creativity
• Compassion
Which had all been positively affected by the 8-week meditation course.
Additional observations made during this study demonstrated that the Amygdala; an area of the brain which can be located towards the front of the structure and which is mainly associated with
• Anger
• Fear
• Stress
was reduced in size as a result of the 8-week meditation course.
The MRI scan showed that this part of the brain got smaller, decreasing the grey matter within that section of the brain. As a result of the shrinking of the Amygdala the associated emotions were also dampened.
This study, with its use of MRI technology is very compelling as it offers proof that meditation changes brain structure, resulting in direct changes to human emotions.