Models of consciousness are ideas scientists have about how the brain works and how it might be related to someone's experiences, feelings, thoughts, ideas, and memories. Scientists think that the brain is made up of many different parts that work together, and that these different parts might be related to how we experience consciousness. For example, if one part of the brain is responsible for someone feeling happy, then maybe when the part is working, it makes us feel happy. Scientists use models to help them explain and understand consciousness. Different scientists have different models, and there is a lot of debate about which model is the best one.