I've asked a similar question before on another forum, but did not receive a very satisfying response.
Does anyone have any idea what goes on in the brain when one meditates? Has there been any science published that I might refer to?
The prefrontal cortex is particularly well developed in meditators... it is the region of the brain that allows us to rise above urges like sex, things like violence etc. There was a psychiatrist who was telling me that there was evidence that meditators increase connections in the frontal cortex, but I can't find that study anywhere.
I found this though... enjoy
"Stress Management as a Treatment Option
There has been little investigation of effective stress management techniques for children with ADHD. Most research on ADHD and stress management focuses on parents and their interaction with the child. One study of a stress management program for ADHD children examined its effectiveness in improving self-concept, locus of control, and acquisition of appropriate coping strategies. The study compared a therapist-led, group, stress management program; stress-management techniques taught by the parents using provided workbook and videotapes; and a control group with no intervention. In acquisition of coping skills, there were no significant changes in any of the three groups. Children in the therapist-led group did report more appropriate coping strategies (Gonzalez, 2002).
Meditation is becoming common as a means of coping with stress and improving psychosocial factors. Although there are many forms of meditation, researchers generally classify them into two categories: techniques of concentration or techniques of contemplation (Shapiro, 1982). Each of these techniques uses different processes, and thus has different effects (Orme-Johnson, & Walton, 1998). In meditation practices involving concentration, such as Zen meditation, the practitioner focuses on something specific such as an event, image, or sound, trying to direct all of his or her attention to a single focal point. Contemplative techniques include mindfulness meditation practices, a secularized version of Vipassana or Insight meditation. The goal is to be aware of any and all thoughts and sensations while trying not to judge or become actively involved in the thoughts (Shapiro, 1982). This type of mindfulness-based stress reduction (MBSR) technique can be practiced throughout daily activity.
Coupled with cognitive behavioral therapy, MBSR treatments have been studied for depression relapse, borderline personality disorder, and anxiety disorders (Segal, Williams, & Teasdale, 2002). Recent research of a MBSR technique showed decreases in perceived stress and symptoms among a clinical population with stress-related problems, illness, anxiety, and chronic pain (Carmody & Baer, 2007).
There is a growing body of research on the beneficial effects of meditation not only as a stress-coping mechanism, but also in improving brain function. Research suggests that meditation can change neural activity (Newberg et al., 2006), alter dopamine levels in the brain (Jevning, 1978; Kjaer et al., 2002) and change EEG patterns (Travis, 2001; Travis & Wallace, 1999).
Researchers are just beginning to explore the use of meditation for attention and ADHD symptoms. A study of Sahaja Yoga meditation as an intensive family treatment program with children with ADHD found improvements in children’s ADHD behavior, self-esteem, and relationships with their families (Harison, Manocha, & Rubia, 2004). In non-ADHD subjects Mha, Krompinger and Baine (2007) found that MBSR may improve attention-related neural responses. A recent feasibility study of ADHD adults and adolescents using MBSR noted improvements in ADHD symptoms based on self-report and improvements on performance measures of attention (Zylowska, et al., 2007). "
This is from : http://cie.asu.edu/volume10/number2/#Results