Effect of early visual restriction on later visual intensity discrimination in rats.

Abstract

80 LIGHT- AND DARK-REARED HOODED RATS WERE TRAINED ON A PATTERN DISCRIMINATION OR ON AN "EASY" OR A "DIFFICULT" VISUAL INTENSITY DISCRIMINATION. NO SIGNIFICANT DIFFERENCE IN ACQUISITION OF EITHER INTENSITY PROBLEM WAS FOUND BETWEEN LIGHT- AND DARK-REARED SS, BUT A HIGHLY SIGNIFICANT DIFFERENCE WAS FOUND FOR THE VISUAL PATTERN PROBLEM. RESULTS ARE DISCUSSED WITH REGARD TO THE PROPOSITION THAT DEFICITS IN PERFORMANCE OF VISUALLY DEPRIVED SS ON PATTERN DISCRIMINATIONS ARE RELATED TO THE TASK DIFFICULTY PER SE. (16 REF.) (PsycINFO Database Record (c) 2006 APA, all rights reserved)