The claim that crucial psychological discoveries rely exclusively on non-human animal experiments is demonstrably false, as major foundational areas such as cognitive psychology, behavioral finance, health psychology, and behavioral economics are derived from human studies.
The claim asserts an absolute exclusivity ("rely exclusively on experiments using non-human animals") for crucial psychological discoveries. Multiple retrieved papers describe psychological and behavioral research conducted entirely with human subjects, such as behavioral finance [5], clinical risk assessment [6], behavioral medicine [9], and consumer decision-making [11]. Because major psychological domains and discoveries are established through human research, the claim is refuted.