John Broadus Watson was an American psychologist who is considered to be one of the founding fathers of behaviourism. He is known for his contributions to the study of behaviour and learning, with a research focus on the influence of environment on behaviour. Synonyms for John Broadus Watson could include behaviourist pioneer, psychology pioneer, influential psychologist and learning expert. His theories on behaviourism paved the way for a new era of psychology research and have helped us understand more about human behaviour today. Watson's work continues to serve as a foundation for modern-day psychologists and behaviour scientists alike.