title: Utilization of odor cues as a function of reward-magnitude contrast and delay of reinforcement.
abstract: An experiment manipulating both reward-magnitude contrast and delay of reinforcement is reported. The results indicated that odor cues are produced under conditions of delayed large-reward versus nonreward contrast but not under large- versus small-reward contrast. Additional magnitude and delay manipulations that resulted in the elimination of odor-based double-alternation patterning in the straight runway are presented.
mesh_terms: D000818:Animals; D003463:Cues; D006040:Goals; D008297:Male; D009812:Odorants; D051381:Rats; D011919:Rats, Inbred Strains; D012055:Reinforcement Schedule; D012201:Reward