Ms. Comenencia, a graduate student from Cayey and student at Tufts University, one of the top research universities, gave a seminar on her research into GABA receptors. GABA receptors are receptors that respond to the neurotransmitter GABA, the chief inhibitory neurotransmitter in the central nervous system. Comenencia's research looks at how receptor levels can vary between individuals and in different diseases, and how this impacts diseases related to their function.