Choice, Matching and Self-Control Flashcards
Define bias from matching.
A deviation from matching where one schedule attracts a higher proportion of responses than matching predicts, regardless of the richer or poorer schedule.
Define commitment response.
An action carried out at an early point in time that serves to either eliminate or reduce the value of an upcoming temptation.
Explain a concurrent schedule of reinforcement.
A complex schedule consisting of the simultaneous presentation of two or more independent schedules, each leading to a reinforcer.
Define impulsiveness.
With respect to choice between two rewards, selecting a smaller sooner reward over a larger later reward.
Define matching law.
The priniciple that the proportion of responses emitted on a particular schedule matches the proportion of reinforcers obtained on that schedule.
Explain melioration theory.
The distribution of responses in a choice situation leans towards the richer schedule and ignores the long-term effect on reinforcement.
Define overmatching.
A deviation from matching where the proportion of responses on the richer schedule versus poorer schedule is more different than would be predicted by matching.
Define self-control, with respect to choice between two rewards.
Selecting a larger later reward over a smaller sooner reward.
Explain the small-but-cumulative effects model.
Each individual choice on a self-control task has only a small but cumulative effect on out likelihood of obtaining the desired long-term outcome.
What does the matching law predict?
A consistent relationship between the proportion of reinforcers obtained on a certain alternative and the proportion of responses emitted on that alternative.
According to the matching law, if a pigeon gets 60% of its reinforcers on a particular alternative, what percentage of its responses will it use on that alternative?
60%.
What human behaviour may the principle of matching underlie?
Social behaviour.
Name the three exceptions or deviations from matching.
Undermatching, overmatching, and bias from matching.
What occurs in undermatching?
The proportion of responses on the richer schedule versus the poorer schedule is less different than would be predicted by matching.
When can undermatching occur?
When there is little cost for switching from one schedule to another.
What is a changeover delay (COD)?
When the act of switching between keys initiates a slight delay during which no response will produce a reinforcer.