Effect of hippocampal lesions and intertrial interval on single-alternation performance in the rat.

1972 ◽  
Vol 80 (3) ◽  
pp. 469-477 ◽  
Author(s):  
Don W. Walker ◽  
Linda G. Messer ◽  
Gerhard Freund ◽  
Larry W. Means
Keyword(s):  
Intertrial Interval ◽  
Single Alternation ◽  
Hippocampal Lesions

Single-Alternation Patterning with Sucrose Reinforcement and Varied Intertrial Intervals in the Rat

1979 ◽  
Vol 44 (3_suppl) ◽  
pp. 1311-1316
Author(s):  
Richard J. Nicholls ◽  
Victor Duch
Keyword(s):  
Classical Conditioning ◽  
Intertrial Interval ◽  
Short Interval ◽  
Single Alternation ◽  
Extinction Data ◽  
Sucrose Reward ◽  
Sucrose Reinforcement

Four groups of rats were given single-alternation training in a runway using sucrose reward and then extinguished. Only subjects given training with a short interval (10 sec.) between rewarded and nonrewarded trials and a long interval (40 min.) between nonrewarded and rewarded trials learned patterned responding. This duplicated the results found in classical conditioning with a similar manipulation. The acquisition and extinction data led to the conclusion that intertrial interval cues can be made more important than aftereffects in producing patterning with sucrose reinforcement.

Response Patterning in the Operant-Conditioning Situation with Twenty-Four-Hour Intertrial Interval

1974 ◽  
Vol 38 (1) ◽  
pp. 231-234
Author(s):  
Stephen F. Davis ◽  
Bobby R. Brown
Keyword(s):  
Operant Conditioning ◽  
Intertrial Interval ◽  
Albino Rats ◽  
Operant Conditioning Chamber ◽  
Single Alternation ◽  
Conditioning Chamber ◽  
Conditioning Situation ◽  
Double Alternation ◽  
Sequential Hypothesis ◽  
Response Patterning

16 female, albino rats served as Ss in an investigation of performance on single and double-alternation sequences of reward-nonreward. Ss were run in an operant conditioning chamber with a 24-hr. intenrial interval. The results indicated that Ss receiving the single-alternation reward-nonreward sequence learned to respond appropriately, i.e., fast on reward days, slow on nonreward days, while Ss run under the double-alternation sequence did not exhibit appropriate responding. The results are seen as being supportive of Capaldi's sequential hypothesis.

Effects of CS preexposures on avoidance learning in rats with hippocampal lesions.

1969 ◽  
Vol 69 (4, Pt.1) ◽  
pp. 739-747 ◽  
Author(s):  
James E. Ackil ◽  
Roger L. Mellgren ◽  
Carl Halgren ◽  
Gabriel P. Frommer
Keyword(s):  
Avoidance Learning ◽  
Hippocampal Lesions
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