Thanks to our brain, we have access to things that we have experienced in the past. From the time we were born, we have been collecting memories and learning various skills. Over time, all these new things we’ve absorbed make up who we are—even the dreams we experience when we sleep! The combination of all these things creates our unique personalities, which, even if similar to others, can never be duplicated. Video includes: short-term and long-term memory, Miller’s Law, chunking technique, retrieval failure, interference theory, motivated forgetting, repressed memories, motivation, phantom limb phenomenon, chronic pain, dreams, and activation synthesis hypothesis.