Author Type

Undergraduate Student

Date of Award

Spring 4-29-2025

Document Type

Thesis

Publication Status

Version of Record

Submission Date

July 2026

College Granting Degree

Harriet L. Wilkes Honors College

Thesis/Dissertation Advisor [Chair]

Lucia Carvelli

Abstract

Amphetamine (Amph) is a psychostimulant drug that increases extracellular dopamine at the dopaminergic synapses, making chronic Amph users liable to addiction. This project aims to identify yet uncharacterized candidate genes within the dopaminergic system and determine their involvement in amphetamine-induced behaviors. In C. elegans, Amph causes a dopaminedependent behavior named Swimming induced paralysis (Swip). We used Swip to screen animals for altered Amph response. To facilitate the identification of genes involved in the mechanism of action of Amph, we utilized C. elegans strains from The Million Mutation Project (MMP) bearing random but well-characterized mutations. Out of all the MMP strains tested so far, the VC20149 strain had significantly different amphetamine-induced Swip with respect to the control group. Our plan is to test the knockout MMP strains of the speculated genes to test whether any of them are required in amphetamine-induced behaviors.

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