Abstract
Symbolic distance effect (SDE) in macroscopic time concept was investigated. Subjects were six university and high-school teachers and fifteen university students. They was presented with pairs of printed names of animals; an ameba, a jellyfish, a killi-fish, a lizard, a dog, a gorilla and a mankind. They were instructed to choose the member whose appearance is older on the earth. The reaction time (RT) to choose the older member varies inversely with the steps between their order on the evolution. This finding shows that the judgments are based on some kind long-term memory representation. The data suggest that Ss have made macroscopic time concepts along the evolution.