(Same as Physiological Science M176.) Lecture, two and one half hours; discussion, 90 minutes. Requisite: course M101A or Physiological Science 107. Interdisciplinary approach to understanding how humans and other animals communicate emotion and meaning using sound. Weekly research topics in disciplines of systems neuroscience, cognitive neuroscience, psychophysics, and psycholinguistics. Emphasis on fundamental principles in neurophysiology, neuroanatomy, neuroimaging, psychology, and neurology. Letter grading.