Scaling pigeons' choice of feeds: bigger is better

Article Abstract:

The contrasting behavioral response patterns of hungry pigeons to grains and pellets was analyzed using the Thurston scaling method. The results of the first three of seven experiments conducted proved the existence of a correlation with the size of the feed. The results of the remaining experiments suggest a decrease in the pigeons' preference for the larger grains on being allowed easier access to food. The last experiment, which made use of two types of pellets of 37 mg and 45 mg, revealed a decrease in the preference for the larger pellet, thus supporting the range-frequency theory of psychological behavior.

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The principal components of response strength

Article Abstract:

Response research with pigeons has determined the single latent variable of strength in a trials paradigm. Overall response rate, examined through principal components analysis, has proven a reliable predictor of this variable.

Research, Factor analysis, Discriminant analysis, Response consistency

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Satiation, capacity, and within-session responding

Article Abstract:

Researchers investigate the role of satiation on pigeons' response rate to stimuli. The relationships between stimulus satiation, within-session changes, and food deprivation are analyzed.

Psychological aspects, Evaluation, Conditioned response, Conditioned responses, Stimulus satiation, Reward (Psychology), Rewards (Psychology), Sensory deprivation

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