Generate a tailored SOP for Dr. John Yeomans. Improve your application with a focused, well-structured draft.
John Yeomans studies the brain systems involved in rewards and motivation, focusing on the significance of both natural rewards, such as food and sex, and drug rewards like opiates and nicotine, which influence midbrain dopamine neurons. He has demonstrated that rewards activate dopamine neurons and cholinergic receptor neurons. A particular focus of his lab is on the M5 muscarinic receptor, which plays a critical role in food and brain-stimulation rewards. Yeomans' research includes examining how drug addiction and memory, as well as conditions like schizophrenia, are influenced by these dopamine systems. His studies involve gene-knockout mice that reveal differences in behavior—such as communication through ultrasonic frequencies—concerning social and reward-seeking behaviors when administered drugs like amphetamine and opiates. Yeomans also investigates the pathways mediating defensive behaviors through startle reflex and has uncovered key circuits in the midbrain responsible for these reactions. His lab's contributions extend to understanding how various genes associated with human diseases, drug abuse, and sleep disorders interact with these brain systems.
Department of Sociology