1) The document reflects on a student's personal reflections and learnings from lectures in a psychology course. It discusses concepts like self-concept, social identity, independent vs interdependent self, and self-serving bias.
2) A second lecture discussed vision, including the visible light spectrum, dark and light adaptation, and how color impacts perception and arousal. Class discussions explored how red is associated with romance.
3) Visual illusions demonstrated how the same image can result in different perceptions depending on the person. Vision was described as a window into different places and perspectives.