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Brandon Bastien receives NIH fellowship award to study autism-associated genes in zebrafish

Brandon Bastien, PhD
Brandon Bastien, PhD
Photo: Bryan Goodchild

At a glance

  • Brandon Bastien, PhD, received a $251,000, three-year NIH F32 fellowship to study how autism-associated genes affect brain development and behavior using zebrafish.
  • Bastien’s research has found that one autism-associated gene nearly eliminates dopamine neurons in the zebrafish forebrain. He is now investigating whether manipulating dopamine signaling could improve memory, potentially pointing to future therapeutic strategies.
  • The fellowship will help Bastien establish a foundation of genetic zebrafish models that he can use as a future principal investigator to study how different mutations contribute to autism, schizophrenia and rare neurodevelopmental disorders.


Postdoctoral fellow Brandon Bastien, PhD, is the recipient of a fellowship award from the National Institutes of Health (NIH) to support his work with zebrafish and research on genes linked to autism.

“The goal of the project is to use zebrafish to model how autism-associated genes shared between humans and zebrafish affect the brain and behavior, with the hopes of identifying potential targets for future therapies,” Dr. Bastien said. “This research could help us identify what kind of underlying changes go on in the brain, which can show us which drugs can be used to complement existing treatment strategies.”

One early research finding, for example, found that a particular autism-related gene nearly eliminates dopamine neurons in the zebrafish forebrain. Dopamine is a chemical messenger in the brain that supports learning and memory. Bastien is now exploring if manipulating dopamine signaling can be used as a treatment for impaired memory in the fish.

The NIH F32 award is for $251,000 over three years and will help Bastien toward his long-term goal of becoming an independent investigator.  

“This award will help me take my research into modeling patient-specific mutations in zebrafish to better understand how different mutations can affect a single gene in different ways, like autism or schizophrenia or rare neurodevelopmental disorders,” Bastien said. “It’s going to allow me to build a foundation of genotypes that I can investigate further later on in my career.”

Bastien works in the lab of Summer Thyme, PhD, associate professor of biochemistry & molecular biotechnology, which uses zebrafish to understand how conserved genes are associated with neurodevelopmental disorders. He joined the lab in November 2024.

Bastien completed his PhD in neuroscience at the University of Pennsylvania in 2024 and earned his bachelor’s degree in neuroscience from Swarthmore College. He is originally from Orange County, California.