Intertrial interval and acquisition of a lever press avoidance response.

1963 ◽  
Vol 56 (4) ◽  
pp. 710-712 ◽  
Author(s):  
Jack Pearl
Keyword(s):  
Avoidance Response ◽  
Intertrial Interval ◽  
Lever Press

Joint Effects of Intertrial and Intersession Interval upon Avoidance Learning

1964 ◽  
Vol 14 (1) ◽  
pp. 31-37 ◽  
Author(s):  
F. Robert Brush ◽  
James S. Myer ◽  
Michael E. Palmer
Keyword(s):  
Avoidance Response ◽  
Fear Conditioning ◽  
Avoidance Learning ◽  
Avoidance Training ◽  
Intertrial Interval ◽  
Original Learning ◽  
Factorial Experiment ◽  
Joint Effects ◽  
Intersession Interval ◽  
Interval Functions

The effect of intertrial and intersession interval on the relearning of an incompletely learned avoidance response was studied in a factorial experiment having three intertrial intervals—½, 1, and 2 min.—and five intersession intervals—.08, 1, 4, 24, and 168 hr. Original learning was avoidance training to a criterion, and relearning was 40 trials of the same training. Five groups of 10 rats, matched for rate of original learning, were trained at each intertrial interval. The number of avoidance responses during relearning was a U-shaped function of intersession interval for all intertrial intervals. During the first 10 relearning trials, the maximum interfering effect occurred after an intersession interval of 24 hr. in the ½-min. groups and after 4 hr. in the 1- and 2-min. groups. During the rest of relearning, maximum interference was reached after 1 hr., and the intersession interval functions were independent of intertrial interval, except for over-all level. These results were interpreted in terms of a “parasympathetic over-reaction” following fear conditioning.

CS-US Interval in the Trace Conditioning of an Avoidance Response

1963 ◽  
Vol 13 (1) ◽  
pp. 43-45 ◽  
Author(s):  
Jack Pearl ◽  
Robert E. Edwards
Keyword(s):  
Avoidance Response ◽  
Lever Press ◽  
Trace Conditioning ◽  
The Other ◽  
Conditioning Procedure ◽  
Interval Group ◽  
Skinner Box ◽  
Avoidance Responses

To determine whether acquisition of an avoidance response with a trace conditioning procedure in the Skinner box could be facilitated by the use of long CS-US intervals, three groups of six rats each were trained at CS-US intervals of either 5, 20, or 60 sec. The CS was presented for 1 sec. unless it was ended beforehand by a lever press. The 5-sec. CS-US interval group made fewer avoidance responses and terminated the 1-sec. CS less often than each of the other groups. It was suggested that the differences in performance were due to initial differences in opportunity for making the appropriate response.

Acquisition and retention of a passive-avoidance response as a function of age in rats.

1971 ◽  
Vol 74 (1, Pt.1) ◽  
pp. 75-83 ◽  
Author(s):  
Candace J. Schulenburg ◽  
David C. Riccio ◽  
Edna R. Stikes
Keyword(s):  
Passive Avoidance ◽  
Avoidance Response ◽  
Passive Avoidance Response

INFLUENCE OF SODIUM THIOPENTAL ON CONSERVATION OF CONDITIONAL REFLEX OF PASSIVE AVOIDANCE IN RATS WITH DIFFERENT NERRVOUS SYSTEM EXCITABILITY

2018 ◽  
pp. 8-11
Author(s):  
A. V. Shvetsov ◽  
A. I. Vaido ◽  
N. A. Dyuzhikova ◽  
A. V. Belskaya ◽  
M. V. Mikhailova ◽  
...  
Keyword(s):  
Nervous System ◽  
Passive Avoidance ◽  
Avoidance Response ◽  
Conditioned Reflex ◽  
Lethal Dose ◽  
Conditional Reflex ◽  
Passive Avoidance Response ◽  
Sodium Thiopental ◽  
Higher Sensitivity

A study of the dynamics of preservation of the conditioned reflex of passive avoidance (passive avoidance response) in rats of two lines with different level of excitability of the nervous system was performed: with a high and low thresholds of excitability as normal and after exposure to sodium thiopental semi-lethal dose. It was shown that a long preservation of the memorable trace under standard conditions and a higher sensitivity to the sodium thiopental action manifest in rats with a high excitability threshold in comparison with low-excitable line of rats.

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