Definition: Predelude is a term used in medicine and psychology to describe a situation where an individual experiences negative emotions or thoughts that are linked to their past trauma, such as traumatic events or mental health issues. This can be particularly distressing for individuals who have experienced these types of experiences before. The term "predelude" refers to the experience of being influenced by traumatic memories or memories from the past, which can result in a range of negative emotions and thoughts. In psychology, predeludes are