What does internal behavior mean?

Internal behavior refers to the cognitive processes (thinking, feeling, planning), emotions, attitudes, motivations, and responses to the environment that occur within an individual. It encompasses the internal mental and emotional states of a person, influenced by both external stimuli and the individual's personal thoughts and feelings. This concept contrasts with "external behavior," which focuses on observable actions and responses. Studying internal behavior helps professionals (psychologists, behavior analysts, healthcare providers) gather a nuanced understanding of an individual's psychological make-up and decision-making.