Fig. 5. Results from the sensory preconditioning experiments. In the
preconditioning phase, the compound stimulus is presented without
reinforcement. Results from corresponding half-experiments have been pooled.
(A) 10 min of preconditioning (N=56). (B) 16 min of preconditioning
(N=56). In the final test, the alternative stimulus to that used in
the training period is used. Cross-hatched columns, training; open columns,
test period; shaded areas, compound stimulus; unshaded areas, single stimulus.
Values are means ± S.E.M.
