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Human free-operant performance varies with a concurrent task: Probability learning without a task, and schedule-consistent with a task
Learning & Behavior, Volume: 48, Issue: 2, Pages: 254 - 273
Swansea University Author:
Phil Reed
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DOI (Published version): 10.3758/s13420-019-00398-1
Abstract
Three 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 m...
| Published in: | Learning & Behavior |
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| ISSN: | 1543-4494 1543-4508 |
| Published: |
Springer Science and Business Media LLC
2020
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa52871 |
| Abstract: |
Three 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. |
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| Keywords: |
Schedules of reinforcement; Response rate; Bout-initiation; Within-bout responding; Probability learning; Humans |
| College: |
Faculty of Medicine, Health and Life Sciences |
| Issue: |
2 |
| Start Page: |
254 |
| End Page: |
273 |