I remember a study in the Netherlands being conducted back in 2000 or so when I was a student assistent which showed that the brain dynamics of drummers radically switched regime when drummers would switch from in-phase to anti-phase rythms, as measured by MEG and EEG. No idea if that is what you are looking for. I think this paper is about that study:

Hm I can't see the link: : http://scholar.google.nl/scholar_url?url=http://www.researchgate.net/publication/8047764_Stabilization_of_bimanual_coordination_due_to_active_interhemispheric_inhibition_a_dynamical_account/file/79e41510182a199bb6.pdf&hl=nl&sa=X&scisig=AAGBfm1zG4d2JuYEHsZ1zvSL9Bta4CmTVg&oi=scholarr&ei=xjSTVMPjNZbzaq2sgJgO&ved=0CCEQgAMoADAA 

Article Stabilization of bimanual coordination due to active interhe...

there are so many !

My colleagues and I just published two papers around that theme (or at least that theme is part of the paper, you'll be able to find the right section), in which we make reference to many other works :

http://journal.frontiersin.org/Journal/10.3389/fnhum.2014.01004/full

http://journal.frontiersin.org/Journal/10.3389/fpsyg.2014.01180/abstract

best,

j.

Hello Jenn - You can search for keywords like "entrainment" or "groove".

You will find references to a large body of research in the following (very recent: November 2014) paper:

Burger, B., Thompson, M. R., Luck, G., Saarikallio, S. H., & Toiviainen, P. (2014). Hunting for the beat in the body: on period and phase locking in music-induced movement. Frontiers in Human Neuroscience, 8. doi:10.3389/fnhum.2014.00903

It is downloadable here: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4224089/

Best, Olivier

Hi, you can also take a look at my dissertation (2005) in which I do a review on research on this relationship and establish what rhythms in dance may possess musical qualities. This was done with the purpose of designing software that could extract "musical cues" from dance movement. In any case, I cite a lot of relevant research that may be of help to you. The link to my dissertation: http://carlosguedesdotorg.files.wordpress.com/2011/12/mappingmovement.pdf

There is an interesting book by the dancer and choreograph William Forsythe "Denken in Bewegung". He performed some mrt-studies with dancers or patients, who look ballet videos. I think it´s important literature for you!

Dear Jenn

I suggest you visit "O Passo" website - http://www.opasso.com.br -  "O Passo is based on a specific gait and oriented by four pilars (body, representation, group and culture). It introduced in rhythm and sound teaching-learning process new concepts like position and musical space and new tools like the gait that gives the method its name, the oral and the body notations and the O Passo graphic notation. 

Cheers

Sérgio

Metal, head banging and physiological/neurological impact: #1 link

To quote the doctor in the Rolling Stone article linked #2 link:

"The risk of injury is very, very low. But I think if (our patient) had (gone) to a classical concert, this would not have happened."

Seems to point to a strong correlation between rhythm and body movement

http://www.thelancet.com/pdfs/journals/lancet/PIIS0140-6736(14)60923-5.pdf

http://www.rollingstone.com/music/news/motorhead-fan-suffers-brain-bleed-from-headbanging-20140706