5: Week 5 - Biological Psychology Last updated Save as PDF Page ID 151879 5.1: Class Day 5.1 5.1.1: The Brain and Spinal Cord 5.1.2: Substance Use and Misuse vs. Substance Use Disorders 5.1.3: A Brief History of Substance Use and U.S. Policy Responses 5.2: Class Day 5.2 5.2.1: Using Credible Sources 5.2.2: Writing for Science 5.2.3: What Are Scientific Journals