right brain

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The cerebral hemisphere to the right of the corpus callosum, controlling activities on the left side of the body and, in humans, usually controlling perception of spatial and nonverbal concepts.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The right cerebral hemisphere; the part of the brain associated with creativity.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the cerebral hemisphere to the right of the corpus callosum that controls the left half of the body