Changeover behavior and preference in concurrent schedules

Article Abstract:

The matching law states that organisms choose according to the rate of reinforcement received for each choice. An experiment was designed to investigate this connection. Pigeons were trained on a multiple schedule of reinforcement, where separate concurrent schedules occured in two components. During probe tests, relative response rate favored the variable interval 40-s alternative paired with a lower valued schedule. Where the high-value alternative contained signals for reinforcer availability, the response rate during probes favored the variable-interval 40-s alternative paired with a higher valued schedule.

Case studies, Animal experimentation, Behavioral assessment

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Value transmission in discrimination learning involving stimulus chains

Article Abstract:

Rats demonstrated a learning rate that correlated significantly with distribution across two-link stimulus chains. Pairing of each stimulus element with different outcomes created one set of results, and giving each stimulus opposite status as that of the previous reversal produced similar learning patterns.

Behavior, Rats, Discrimination learning

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