Heinrich Klüver was a prominent German-American psychologist known for his work in the field of visual perception and psychophysics. Born in 1897, he made significant contributions to understanding how humans perceive shapes and patterns. His research often focused on the relationship between visual stimuli and cognitive processes. Klüver is also recognized for his studies on the effects of psychedelic substances on perception, particularly in the context of art and creativity. His work laid the groundwork for further exploration into how altered states of consciousness can influence human experience and artistic expression.