His current projects include ontogeny and hormonal control of sex differences in the nervous system, determination of neuronal morphology and connectivity of spinal motoneurons, and normally occurring neuroplasticity. Maze learning and morphology of frontal cortex in adult and aged basal forebrain-lesioned rats. Synergistic effects of testosterone metabollites on the development of motoneuron morphology in a sexually dirmorphic rat spinal nucleus. Visual and song nuclei correlate with courship skills in brown-headed cowbirds. Prenatal gonadal steriods affect adult spatial behavior, CA1 and CA3 pyramidal cell morphology in rats.
Aromatase inhibition reduces dendritic growth in a sexually dimorphic rat spinal nucleus.