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T Stafford, M Thirkettle, T Walton, N Vautrelle, L Hetherington, M Port, K Gurney and P Redgrave
We present a behavioural task designed for the investigation of how novel instrumental actions are discovered and learnt. The task consists of free movement with a manipulandum, during which the full range of possible movements can be explored by the participant and recorded. A subset of these movements, the ‘target’, is set to trigger a reinforcing signal. The task is to discover what movements of the manipulandum evoke the reinforcement signal. Targets can be defined in spatial, temporal, or kinematic terms, can be a combination of these aspects, or can represent the concatenation of actions into a larger gesture. The task allows the study of how the specific elements of behaviour which cause the reinforcing signal are identified, refined and stored by the participant. The task provides a paradigm where the exploratory motive drives learning and as such we view it as in the tradition of Thorndike [1]. Most importantly it allows for repeated measures, since when a novel action is acquired the criterion for triggering reinforcement can be changed requiring a new action to be discovered. Here, we present data using both humans and rats as subjects, showing that our task is easily scalable in difficulty, adaptable across species, and produces a rich set of behavioural measures offering new and valuable insight into the action learning process.
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Knowledge, Study skills, Intelligence, Classical mechanics, Behaviorism, B. F. Skinner, Psychology, Learning
MeSH headings
Animals, Behavior, Humans, Learning, Movement, Photic Stimulation, Rats, Reinforcement (Psychology), Reproducibility of Results, Task Performance and Analysis
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