PSYC 351 , PSYC 342 , PSYC 349  and all courses numbered between 311 and 399 are Tier 3 courses. These courses require that students  complete Introduction to Psychology with a grade of C- or better and pass two Tier 2 courses prior to enrollment. Tier 3 Psychology courses that fulfill requirements for the Neuroscience major may be taken by students who have completed the above prerequisites or by students who have completed NEUR 250 - Introduction to Neuroscience .