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Research Projects
Several examples of ongoing research projects

We study how changes in gene sequence have led to the evolution of alternative phenotypes in a songbird model.

Channelrhodopsins (green) expressed in the motor thalamus of the monkey after viral transfection

A cholinergic interneuron (revealed with ChAT, red) expresses channelrhodopsins (green) after viral transfection in the monkey putamen

Medium spiny neurons in the monkey striatum express channelrhodopsins (revealed with immunoperoxidase) after viral transfection

Stimulated striatal dopamine release before and after methylphenidate application as measured by fast-scan cyclic voltammetry

The headphones allow manipulation of the way the birds hear their own songs so that we can study how the brain processes auditory information and learns from experience

Left: DTI-based white-matter tracts from the genu of the corpus callosum to the PFC in a squirrel monkey. Right: loss of genu-PFC white-matter integrity in aged, cocaine-exposed squirrel monkeys compared to aged controls