The field of biopsychology in essence reflects a centuries-old desire to understand how the mind and body operate in tandem. Psychologists dating back to Sigmund Freud and beyond have recognized the capacity of our behaviors, memories, and cognitions to be affected by neuroanatomical and physiological structures in the body. Though the body-mind link is now commonly recognized, this has not always been the case, and its realization has been promoted by the influx of research based in biopsychology. Researchers in biopsychology strive toward explaining macrolevel cognitive and behavioral functioning through examinations of microlevel biological processes. Thus, biopsychology connects work on genetics, neuroscience, pharmacology, and psychological science, which requires that researchers in the field must employ a broad methodological playbook. One example within the psychology of ...