S-R separation with monkeys

Four monkeys were tested on successive problems involving cue-response separations. The usual AA go left/BB go right paradigm was altered by introducing neutral (N) stimuli in place of one of the As or Bs to create NA, AN, BN, and NB configurations. The neutral stimulus created cue-response separations equal to the foodwell separation in two of the configurations (NA, and BN, where A signals go left and B signals go right). Three of the four monkeys were able to solve these cue-response separation problems. Performance was discussed in terms of observing response theory and with respect to differences between the simultaneous and successive problem paradigms.