[Stair-step maze for the study of simple associations].
D000818:Animals; D001244:Association / Q000187:drug effects*; D001522:Behavior, Animal / Q000187:drug effects*; D008568:Memory / Q000187:drug effects*; D011600:Psychopharmacology; D051381:Rats
Labirinto a scala per lo studio delle associazioni semplici.