Many patients with neuropsychiatric disorders such as schizophrenia and Parkinson's disease present with symptoms of cognitive dysfunction. Cognitive symptoms are closely tied to quality of life. However, the underlying brain pathologies that cause these symptoms are poorly understood, leading to limited treatment options. My dissertation aims to better characterize the brain regions and neural activity patterns that contribute to normal temporal cognitive processing. Understanding the regions, transmitter systems, and cellular processes involved will inform better treatments.