title: Effects of partial reinforcement on conditioning, conditional probabilities, asymptotic performance, and extinction of the rabbit's nictitating membrane response.
abstract: Classical conditioning and extinction of the rabbit nictitating membrane response was investigated under 100 per cent, and two 50 per cent reinforcement conditions (50% equated total trials, and 50% equated reinforced trials) at average intertrial intervals (ITIs) of 30 and 60 sec. It was found that: (1) partial reinforcement reduced the rate of conditioning, but all groups eventually attained asymptomatic performance levels near 100 per cent; (2) first-order and second-order conditional probabilities following reinforced and nonreinforced trials were virtually identical; and (3) no partial reinforcement extinction effect (PREE) was observed.
mesh_terms: D000161:Acoustic Stimulation; D000704:Analysis of Variance; D000818:Animals; D003214:Conditioning, Classical; D003215:Conditioning, Eyelid; D004597:Electroshock; D005108:Extinction, Psychological; D005260:Female; D008297:Male; D008433:Mathematics; D009541:Nictitating Membrane / Q000502:physiology*; D011817:Rabbits; D012055:Reinforcement Schedule