It has long been thought that there are two levels of decision-making: a conscious level taking place in the cerebral cortex and an unconscious level in the basalganglia.
"These cells and molecules, awash in various neurochemical cocktails in my basalganglia, are presumably the basis for my love and attachment to my husband," she writes.
Enard found that in the basalganglia and connected regions involved in learning, the human version of FOXP2 caused some neurons to develop longer branches than those found in normal mice.