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User:Shirleybayer

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I am a retired developmental neurobiologist who has studied brain development at the cell and tissue level. I am still doing research. Collaborating with Joseph Altman, I have created atlases of the prenatal rat brain and of the human central nervous system. Most of my published work has been based on 3H-thymidine autoradiography to study the timetables of neurogenesis, neuron migratory pathways, and neuronal settling patterns in the developing rat forebrain. I have described neurogenetic gradients--a nonrandom settling of neurons according to age in a particular structure. Many of these neurogenetic gradients correlate with topographic anatomical connections in the mature brain. Taken as a whole, my work with Joseph Altman has shown that the complex anatomy of the mature brain depends on carefully coordinated developmental events. I also have made contributions to the field of adult neurogenesis, especially in the hippocampal dentate gyrus. I showed that adult-generated dentate granule cells add to the total population.