Douglas Roossien
Douglas Roossien
Assistant Professor of Biology


Room:FB 209

Dr. Roossien uses many cutting edge genetic and molecular technologies such as genome editing, expansion microscopy and tissue clearing, transgenics and viral vector production to understand the cellular and molecular mechanisms underlying the development of neuron circuitry.


Michigan State University

Prior Employment

University of Michigan


Serotonin neurons regulate many behavioral functions such as mood, appetite, sleep, and cognition. Abnormalities in the morphology of these neurons have recently been implicated as contributing factors in behavioral disorders, yet the cellular mechanisms underlying these abnormalities are unclear. The powerful genetic tools available in Drosophila allow us to manipulate cellular and molecular function of these specific neurons during development. Together with a variety of emerging techniques such as Brainbow circuit analysis (see image below), Expansion Microscopy, and live-cell imaging, we seek to take an exciting new look at the developing nervous system in the hope of understanding how abnormalities in the serotonin system arise.

For more information and a list of publications, please visit our lab website.


Course Schedule
Course No. Section Times Days Location
Undergraduate Resear 498 1 0000 - 0000
Readings in Biology 628 2 0000 - 0000
Research in Biology 697 3 0000 - 0000
Research in Biology 796 1 0000 - 0000