Kalish's report on the non-correction method and the delayed response problem: a correction
Abstract
The writers take exception to a statement by D. Kalish in a recent article on delayed responses in rats "that rats could not to make spatially opposed responses at the same place unless, as in a discrimination problem, there were differential cues at that place which would indicate on each trial which of the two responses was required." Blodgett and McCutchan disclaim making an absolute statement that rats cannot learn such problems, referring to their own studies in which some animals showed definite evidence of such learning, and to a statement from one of their papers, in which they have said: "these experiments . . . seem to demonstrate the extreme difficulty of even the simplest double-pattern maze when the critical choice point is in a fixed position, or when . . . the visual situation is constant despite maze rotation."