scholarly journals Operant performance as a function of novelty of reward

1968 ◽  
Vol 12 (5) ◽  
pp. 221-222 ◽  
Author(s):  
Glen D. Jensen ◽  
Linnus S. Pecaut
Keyword(s):  
Operant Performance

scholarly journals Human free-operant performance varies with a concurrent task: Probability learning without a task, and schedule-consistent with a task

2020 ◽  
Vol 48 (2) ◽  
pp. 254-273 ◽  
Author(s):  
Phil Reed
Keyword(s):  
Human Performance ◽  
Probability Learning ◽  
Concurrent Task ◽  
Schedules Of Reinforcement ◽  
Feedback Function ◽  
Operant Performance ◽  
Schedule Of Reinforcement ◽  
Free Operant ◽  
Schedule Performance ◽  
The Relationship

AbstractThree experiments examined human rates and patterns of responding during exposure to various schedules of reinforcement with or without a concurrent task. In the presence of the concurrent task, performances were similar to those typically noted for nonhumans. Overall response rates were higher on medium-sized ratio schedules than on smaller or larger ratio schedules (Experiment 1), on interval schedules with shorter than longer values (Experiment 2), and on ratio compared with interval schedules with the same rate of reinforcement (Experiment 3). Moreover, bout-initiation responses were more susceptible to influence by rates of reinforcement than were within-bout responses across all experiments. In contrast, in the absence of a concurrent task, human schedule performance did not always display characteristics of nonhuman performance, but tended to be related to the relationship between rates of responding and reinforcement (feedback function), irrespective of the schedule of reinforcement employed. This was also true of within-bout responding, but not bout-initiations, which were not affected by the presence of a concurrent task. These data suggest the existence of two strategies for human responding on free-operant schedules, relatively mechanistic ones that apply to bout-initiation, and relatively explicit ones, that tend to apply to within-bout responding, and dominate human performance when other demands are not made on resources.

scholarly journals Early Alterations in Operant Performance and Prominent Huntingtin Aggregation in a Congenic F344 Rat Line of the Classical CAGn51trunc Model of Huntington Disease

2018 ◽  
Vol 12 ◽  
Author(s):  
Anne-Christine Plank ◽  
Fabio Canneva ◽  
Kerstin A. Raber ◽  
Yvonne K. Urbach ◽  
Julia Dobner ◽  
...  
Keyword(s):  
Huntington Disease ◽  
Operant Performance ◽  
F344 Rat
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