Miller found that inhibiting actin polymerization in the amygdala, with a non-muscle myosin II inhibitor, disrupted drug-seeking behavior. In 2017, Miller and her group furthered these findings by exploring the effects of Blebbistatin, a small molecular non-muscle myosin II inhibitor, on methamphetamine-related memories compared to cocaine and morphine-related memories. They found that the effects of Blebbistatin on memory disruption are specific to methamphetamine-related memories and they are amygdala dependent. This finding will pave the way for specific therapeutic interventions for addiction that treatments that do not require re-exposure to the drug cues. For this discovery, Miller was honored with the Presidential Early Career Award and received a five-year research grant to support furthering her findings towards clinical trials. In 2019, Miller and her group found a microRNA in the amygdala that is specifically elevated after trauma. They discovered this microRNA by sequencing RNA from the Basolateral Amygdala, a brain region known to be implicated in fear conditioning, to observe differences in microRNAs levels after fear conditioning. Fear conditioning is done in this experiment to model the biological processes that might occur after traumas that precede the development of post-traumatic stress disorder. Miller's results shows that the most robustly down-regulated microRNA after fear conditioning was mir-589-3p. Miller and her group further found that inhibiting this microRNA interfered with expression and extinction of fear memories. Interestingly, the difference in microRNA mir-598-3p level and the effect of its inhibition was only observed in male but not female mice. In addition to her translational research, Miller is a strong advocate for women in science and is the cofounder of the Professional Women's Nexus, an organization that provides a network for female professionals to connect and support each other in their career. Miller has given many talks on how to foster early career success for women and in 2019 she organized the SFN Professional Development workshop “Addressing issues facing women in the early stages of their scientific career”.