Identifying input-specific mechanisms underlying drug-evoked plasticity in the dopamine system

2015 Seed Grant
Stephan Lammel, Ph.D.
University of California, Berkeley

Drug addiction is a major public issue worldwide because it strongly affects a person’s health and places a costly burden upon society. A consistent finding in addiction research is that drugs of abuse elicit long-lasting synaptic changes in the brain’s “reward system”, a neural circuit important for 5 responding to natural rewards such as food and sex. Such pathologic synaptic plasticity represents a form of maladaptive learning that is thought to contribute to the development of the addicted state. A critical step in addiction research is to identify specific synapses in the reward system that are susceptible to drug-evoked synaptic plasticity. To identify these synapses we will combine cutting-edge technologies that allow unprecedented insights into brain structure and function. Our findings will accelerate the development of brain stimulation interventions that selectively target drug-induced changes in the synapses of the brain’s reward system, which may be efficacious in reducing drug use and relapse.

Other Grants

José Manuel Baizabal Carballo, Ph.D., Indiana University Bloomington
Heterochromatin Mechanisms of Cortical Expansion
Neurodevelopmental disorders, such as autism and schizophrenia, are frequently associated with mutations in genes that encode chromatin-modifying enzymes. A subset of these mutations is thought to disrupt compacted chromatin (heterochromatin),…
Jessica L. Bolton, Ph.D., Georgia State University
Chemogenetic Tools in Microglia as a Novel Therapeutic Approach for Brain Disorders
All humans are born with a unique combination of genes, which contribute greatly to who we are. However, early-life experiences such as trauma or hardship, particularly during the first few…
Junyue Cao, Ph.D., The Rockefeller University
Elucidate the Molecular and Cellular Targets of Caloric Restriction in Rejuvenating Aged Mammalian Brain
As we age, the brain’s ability to function declines, increasing the risk of cognitive impairments and neurological diseases like Alzheimer’s and Parkinson’s. Our research investigates how caloric restriction (CR), a…
Vasileios Christopoulos, Ph.D., University of Southern California
Understanding the Mechanisms of Micturition in the Brain and Spinal Cord
This research aims to better understand how the brain and spinal cord work together to control urination, a process known as micturition. In healthy individuals, this process is carefully coordinated…