scholarly journals Acquisition and extinction following extended partial reinforcement training under small or large reward

1975 ◽  
Vol 6 (2) ◽  
pp. 198-200 ◽  
Author(s):  
Lawrence S. Meyers ◽  
Gary J. Anderson
Keyword(s):  
Large Reward ◽  
Partial Reinforcement ◽  
Partial Reinforcement Training

Extinction Performance as a Function of N-R Transitions and Intertrial Reinforcement with Extended Partial Reinforcement Training

1968 ◽  
Vol 22 (3) ◽  
pp. 765-771 ◽  
Author(s):  
James E. Spivey ◽  
David T. Hess ◽  
James Klemic
Keyword(s):  
Partial Reinforcement ◽  
The Other ◽  
Albino Rats ◽  
Extinction Performance ◽  
Extended Training ◽  
Consistent Reinforcement ◽  
Intertrial Reinforcement ◽  
Partial Reinforcement Training

3 groups of albino rats were given 96 acquisition trials in a runway. One group (C) was given consistent reinforcement, while the other 2 groups (PN, PR) received the same partial reinforcement pattern, RRNNRRNN, on each day. Following Trial 4 for Group PN and Trial 5 for Groups PR and C., Ss were given intertrial reinforcement. In extinction the groups were ordered PR, PN, C, with Group PR being most resistant to extinction. Taken in conjunction with the results of studies involving abbreviated training, the findings were interpreted as supporting the view that the same variables or processes influence extinction performance following both abbreviated and extended training. The results were further interpreted as supporting the modified aftereffects hypothesis.

Partial Delay and Partial Reinforcement Effects on Resistance to Continuous Delay: Some Effects of Sequential Manipulations

1976 ◽  
Vol 38 (3) ◽  
pp. 827-834
Author(s):  
Dennis G. Dyck ◽  
Roger L. Mellgren ◽  
Bruce Hudson
Keyword(s):  
Instrumental Learning ◽  
Straight Alley ◽  
Partial Reinforcement ◽  
Control Groups ◽  
Continuous Reinforcement ◽  
Sequential Theory ◽  
Partial Delay ◽  
Continuous Delay ◽  
Partial Reinforcement Training

Rats were trained in a straight-alley runway in two replications of 24 rats each. Two groups received partial reinforcement training with one or three successive nonreward trials (N-length), two groups received partial delay training with one and three successive delayed trials (D-length), and two additional groups received immediate continuous reinforcement. Following training all groups were shifted to continuous delay. The results indicated that D-length increased resistance to continuous delay, however, N-length did not have the corresponding effect. The performance of both N-length groups equalled that of the D-length 3 group, but the D-length 1 group was inferior and not different from the continuously reinforced control groups. These results were discussed in terms of Capaldi's (1967) sequential theory of instrumental learning.

scholarly journals Partial Reinforcement Reduces Vulnerability to Anti-anxiety Self-medication During Appetitive Extinction

2015 ◽  
Vol 28 ◽  
Author(s):  
Lidia Manzo ◽  
M. José Gómez ◽  
José E. Callejas-Aguilera ◽  
Alberto Fernández-Teruel ◽  
Mauricio R. Papini ◽  
...  
Keyword(s):  
Preference Test ◽  
Partial Reinforcement ◽  
Continuous Control ◽  
Control Groups ◽  
Self Medication ◽  
Oral Consumption ◽  
Access To Water ◽  
Partial Reinforcement Training ◽  
Roman Low Avoidance ◽  
Roman High Avoidance

Inbred rats from the Roman low-avoidance strain (RLA-I), but not from the Roman high-avoidance strain (RHA-I) increased preference for ethanol after being exposed to sessions of appetitive extinction (Manzo et al. Physiol Behav 2014 123:86-92). RLA-I rats have shown greater sensitivity than RHA-I rats to a variety of anxiogenic situations, including those involving reward loss. Such increased fluid preference did not occur after acquisition (reinforced) sessions or in control groups with postsession access to water, rather than ethanol. Because ethanol has anxiolytic properties in tasks involving reward loss, oral consumption after extinction sessions was interpreted as anti-anxiety or emotional self-medication (ESM). The present research was an attempt to reduce or eliminate the ESM effect in RLA-I rats by giving them 50% partial reinforcement training during the acquisition of an instrumental response, a treatment known to induce resilience to loss-induced anxiety. As expected, partially reinforced RLA-I rats showed a higher resistance to extinction in comparison to continuously reinforced animals, displaying lower ethanol consumption than continuously reinforced rats during the postsession preference test. Partial and continuous control groups receiving water during the preference tests showed no changes in preference. These results suggest that exposure to reward uncertainty typical of partial reinforcement training can reduce ESM in rats genetically selected for high levels of anxiety.

scholarly journals EFFECTS OF CUE STIMULUS IN PARTIAL REINFORCEMENT TRAINING

1967 ◽  
Vol 38 (3) ◽  
pp. 156-162
Author(s):  
HARUHIKO TAKENAKA ◽  
TAKASHIGE IWAMOTO ◽  
MIKIKO KURATA
Keyword(s):  
Partial Reinforcement ◽  
Partial Reinforcement Training
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