Day Current Projects
Dr. Lainy Day
Recovery of Function and Neurogenesis after Cerebellar Damage in Zebra Finch
The female hormone estrogen has a variety of roles in brain and behavior. One of the most recently discovered is a role in protecting the brain from damage and in influencing the brains ability to repair itself. Because cerebellar damage increases estrogen synthesis, we are testing whether estrogen plays a role in how birds with lesions of the cerebellum recover from damage to this brain region.
Brain Adaptations Related To Complex Mating Displays in Manakins
Just as the beak of the finch is shaped by evolution, so to is the brain. For example, a part of the brain known to be involved in memory for locations is particularly large in bird species that hide their food in caches and later must remember these locations in order to retrieve it. We are currently investigating whether a motor learning region of the brain, the cerebellum, is larger in species that perform complex physical displays in order to attract their mates compared to closely related species that perform simple or no displays. We are working with manakins, family Pipridae. Many species of this American tropics family produce amazing high-speed acrobatic displays. In addition to our evolutionary studies we are involved in studies that investigate the biomechanical production and hormonal regulation of the display. Many of these studies are done in collaboration with Barney Schlinger.
The Effects of Natural Products on Motor and Cognitive Function: Do derivatives have estrogenic, stimulant, cannabinoid, or depressant like actions?
One goal of research in this area is to find compounds that have the desired effects on brain or peripheral physiology without negative impacts on learning and memory, motor coordination, or reproduction. Research in this area is performed in collaboration with the Center of Research Excellence in Natural Products Neuroscience (CORE-NPN) Behavioral Neuroscience Core. The Core is funded by the National Center for Research Resources (NCRR) at the National Institutes of Health (NIH) as one of its Centers of Biomedical Research Excellence.