The Intertrial Interval in Pavlovian Inhibitory Conditioning

1969 ◽  
Author(s):  
R. G. Weisman
Keyword(s):  
Intertrial Interval ◽  
Inhibitory Conditioning

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.

Inhibitory Conditioning Resulting from a Reduction in the Magnitude of Reinforcement

1982 ◽  
Vol 34 (3b) ◽  
pp. 163-180 ◽  
Author(s):  
M. M. Cotton ◽  
Glyn Goodall ◽  
N. J. Mackintosh
Keyword(s):  
Stimulus Control ◽  
Shock Intensity ◽  
Conditioned Suppression ◽  
Summation Test ◽  
Control Group ◽  
Conditioned Inhibitor ◽  
Inhibitory Conditioning ◽  
Experimental Subjects ◽  
The Difference

Five experiments, all employing conditioned suppression in rats, studied inhibitory conditioning to a stimulus signalling a reduction in shock intensity. Experimental subjects were conditioned to a tone signalling a 1·0 mA shock and to a tone-light compound signalling a 0·4 mA shock. On a summation test in which it alleviated the suppression maintained by a third stimulus also associated with the 1·0 mA shock, the light was established as a conditioned inhibitor. Retardation tests gave ambiguous results: the light was relatively slow to condition when paired, either alone or in conjunction with another stimulus, with the 0·4 mA shock, but the difference from a novel stimulus control group was not significant. Two final experiments found no evidence at all of inhibition on a summation test in which the light was presented in conjunction with a stimulus that had itself been associated with the 0·4 mA shock. The results of these experiments have implications for the question of what animals learn during the course of inhibitory conditioning.

Exploratory studies of inhibitory conditioning in honeybees (Apis mellifera).

1999 ◽  
Vol 25 (1) ◽  
pp. 103-112 ◽  
Author(s):  
P. A. Couvillon ◽  
Christopher D. Ablan ◽  
M. E. Bitterman
Keyword(s):  
Apis Mellifera ◽  
Inhibitory Conditioning

Reminiscence as a function of the amount of change in the intertrial interval.

1952 ◽  
Vol 44 (5) ◽  
pp. 347-351 ◽  
Author(s):  
Warren H. Teichner ◽  
Elaine Holder
Keyword(s):  
Intertrial Interval

Rotary Pursuit Performance as a Function of Sex, Sex-Role, and Intertrial Interval

1988 ◽  
Vol 66 (2) ◽  
pp. 443-452 ◽  
Author(s):  
Betsy L. Wisner ◽  
John P. Lombardo ◽  
John F. Catalano
Keyword(s):  
Sex Differences ◽  
Intertrial Interval ◽  
Sex Role ◽  
Distributed Practice ◽  
Massed Practice ◽  
Men And Women ◽  
Rotary Pursuit ◽  
Practice Condition ◽  
Performance Time ◽  
Better Than

Rotary pursuit performance (time on target) and reminiscence data were collected for 113 androgynous and feminine men and women under massed or distributed practice conditions. On the final (eighth) block of practice men performed better than women under conditions of massed practice; while no sex differences were found under distributed practice conditions. Under distributed practice conditions androgynous women performed better than feminine women. In addition, men performed better over-all than women, and subjects in the distributed practice condition performed better than subjects in the massed practice condition. Reminiscence data indicated that under massed practice feminine women obtained larger scores than did feminine men and androgynous women. For women sex-role as well as practice condition influenced performance and reminiscence.

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