Shifts in the psychometric function and their implications for models of timing

Article Abstract:

Experiments were conducted to form models for animal timing, including how animals time events, and how animals learn to regulate their behavior in time. Researchers found fault with scalar expectancy theory, incorrect assumptions concerning the conceptualization of animal memory and of the animal learning process.

Animal memory, Learning in animals, Animal learning

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Preference and resistance to change with constant-duration schedule components

Article Abstract:

Researchers evaluate pigeons' preference and resistence to change as effected by varying intervals of food reinforcement. Constant-duration, rather than variable-duration reinforcement, increased pigeons' sensitivity to both preference and resistance.

Reinforcement (Psychology)

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Numerosity discrimination in preschool children

Article Abstract:

The study examines the sensitivity of preschool children to the numeric attributes of stimuli. The results conclude that children's verbalization about the sample stimulus is responsible for variability within the psychometric function.

Science & research, Children, Psychological aspects, Discriminative stimuli

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