I recently did a long paper on art and the brain. I have taken out a few sources from my bibliography which might work for you. Mainly they regard how physically creating art creates a neural network different from that created by math, and the other subjects. The books by (Art Historian) Gardner are particularly good.
Bolwerk, A., Mack-Andrick, J., Lang, F. R., Dörfler, A., & Maihöfner, C. (2014). How Art Changes Your Brain: Differential Effects of Visual Art Production and Cognitive Art Evaluation on Functional Brain Connectivity. PLoS ONE, 9(7). doi:10.1371/journal.pone.0101035
Dewey, J. (2005). Art as experience. New York: Berkley Pub. Group.
Lewis-Williams, J. D. (2002). The mind in the cave: consciousness and the origins of art. London: Thames & Hudson.
Hogenboom, M., (17 April 2014) Artists have structurally different brains. BBC Radio Science Retrieved February 3, 2017, from http:/www.bbc.com/news/science-environment-26925271
Gardner, H. (1994). The arts and human development: a psychological study of the artistic process. New York: BasicBooks.
Gardner, H. (1982). Art, mind, and brain: a cognitive approach to creativity. New York: Basic Books.
Gombrich, E. H. (2002). Art and illusion: a study in the psychology of pictorial representation. London: Phaidon.
O’Toole, S. (2014). How art changes your brain http://www.culturecase.org
Rostan, S. M. (2010). Studio Learning: Motivation, Competence, and the Development of Young Art Students' Talent and Creativity. Creativity Research Journal, 22(3), 261-271. doi:10.1080/10400419.2010.503533
Sissa Medialab. (2013, August 9). Shape and meaning: Study explores how the brain encodes visual objects. ScienceDaily. Retrieved July 8, 2017 from http://www.sciencedaily.com/releases...0809083930.htm
Zeki, S. (1998). Art and the Brain. Daedalus, 127(2), 71-103. Retrieved 4/14/17 from http://www.jstor.org/stable/20027491
Zaidel,D.W., (2010). Art and brain: insights from neuropsychology, biology and evolution. Journal of Anatomy, 216(2), 177–183. Retrieved 4/14/17 from http://doi.org/10.1111/j.1469-7580.2009.01099.x