What is the correct chronological order of the following perspectives of psychology, from past to present?

1. Behaviorism
2. Psychoanalysis
3. Structuralism
4. Humanism

Structuralism was the first attempt at psychology, focusing on introspection. It was followed by Freud's psychoanalysis. Behaviorism followed, sharpy contrasting the subjective techniques in psychoanalysis. Humanism arose to counter behaviorism and its dehumanizing methods.