Details and information about the past is used to make decisions, as past experiences of feelings influence current decision-making, how people will feel in the future, and if they want to feel that way again. Gilbert and Wilson conducted a study to show how pleased a person would feel if they purchased flowers for themselves for no specific reason (birthday, anniversary, or promotion etc.) and how long they thought that feeling would last. People who had no experience of purchasing flowers for themselves and those who had experienced buying flowers for themselves were tested. Results showed that those who had purchased flowers in the past for themselves felt happier and that feeling lasted longer for them than for a person who had never experienced purchasing flowers for themselves