Examination of behavioral and brain mechanisms of attention in humans and other animals. Three lecture hours a week for one semester. Prerequisite: For psychology majors, upper-division standing and Psychology 301 and 418 or 420M with a grade of at least C in each; for others, upper-division standing, Psychology 301 with a grade of at least C, and one of the following with a grade of at least C: Advertising 309R, African and African Diaspora Studies 302M, Biomedical Engineering 335, Chemical Engineering 253K, Civil Engineering 311S, Economics 329, Educational Psychology 308, 371, Electrical Engineering 351K, Government 350K, Mathematics 316, 362K, Mechanical Engineering 335, Psychology 317, 317L, Public Relations 309, Sociology 317L, Social Work 318, Statistics 301, 309, Statistics and Data Sciences 301, 302, 302F, 303, 304, 305, 306, 318, 320E, 321, 325H, 328M.