Marginalium

Tool use and language share brain regions. This shouldn’t be that surprising—language is essentially a motor task, after all. But that this happens not in the cortex but the basal ganglia is interesting:

We observed that the motor training and the syntactic exercises activated common areas of the brain in a region called the basal ganglia

Cortex does transformation of input to output. Basal nuclei are mostly known for doing action selection (i.e. which to do among many alternatives). Is this a tangling of actions communicated vs actions acted?