A component model for stimulus variables in discrimination learning

A general function is derived describing the conditioning of a single stimulus component in a discriminative situation. This function, together with the combinatorial rules of statistical learning theory [5, 12], generates empirically testable formulas for learning of classical two-alternative discriminations, probabilistic discriminations, and discriminations based on the outcomes of preceding trials in partial reinforcement experiments.The researches on which this paper is based were facilitated by a grant from the National Science Foundation.     

Effects of visual and tactual stimulus presentation on learning two-choice patterned and semirandom sequences.

Three experiments compared the effects of visual and tactual stimulus presentation in two-choice sequential learning situations requiring a predictive response. In Experiments 1 and 2, subjects received a five- or six-unit repeating pattern; in Experiment 3, they received a semirandom sequence. Tactual as compared to visual stimulus presentation resulted in less trials to criterion in predicting a repearing pattern and in earlier frequency matching in predicting a semirandom sequence. These results suggest an unusual tactual adeptness in binary serial learning. Additionally, a new method of analyzing conditional responding in th brobability learning paradigm is described and applied to the data in Experiment 3.     

A new protocol for investigating visual two-choice discrimination learning in lizards

Animal Cognition - One of the most widely studied abilities in lizards is discrimination learning. The protocols used to test lizards are often novel or adapted from other taxa without proper...     

A statistical test of a prediction from information theory in a card-sorting situation

Previous work with cards left the joint effects of varying entropy and discriminability on choice-reaction times somewhat in doubt. A card-sorting situation is here constructed in which entropy and discriminability can be varied independently. Two experiments are described with naive subjects and two different treatments of the practice effect. The effect of varying entropy with discriminability held constant is. shown to be significantly non-linear, contrary to the prediction from information theory. Finally a statistical model is proposed which shows at least, qualitative agreement with the results of these experiments.     

A model for mastery learning based on dynamic equilibrium theory

A theoretical model is developed based on dynamic equilibrium theory, which suggests a quantitative explanation for the basic idea in mastery learning that individuals of different aptitude reacting in an ideal environment to the same total quantity of material will ultimately reach the same mastery status, or gain equal increments of status starting from the same base, in time spans inversely proportional to the aptitude. The approach incorporates two widely used mechanisms, one for growth in learning and intelligence and one for loss through forgetting, into a single model that treats acquisition and loss as opposing, but simultaneously occuring processes. Operational definitions for acquisition and loss rate constants that would enable the model to account exactly for the basic assumption of mastery learning and at the same time yield a growth pattern identical to that implicit in the Stanford Binet ratio IQ are identified. An analysis of the extent to which the requirements of the model are confirmed by the available experimental evidence reveals that the basic idea of mastery learning is a useful and convenient approximation, which applies with some validity to the growth of mental ability as well as to the growth in school achievement.     

Sports spectator behavior: a test of the theory of planned behavior

The theory of planned behavior has been applied to sports and exercise behaviors. According to this theory, human intention to take action in a specific context is guided by three antecedents: attitude, subjective norm, and perceived behavioral control. Behavioral intention mediates the relationships between these three considerations and its ultimate performance. However, this theory has seldom been applied to the behaviors of spectators of sporting events. A sample of 269 volleyball spectators in Taiwan was studied to examine whether people's intention mediated their attitudes, subjective norms, and perceived behavioral control toward a given behavior, watching the 2010 Fédération Internationale de Volleyball World Grand Prix in Taipei. Regression analyses did not support behavioral intention as a mediator. This result is discussed in the context of planned behavior.     

A diffusion model account of masking in two-choice letter identification

The diffusion model developed by R. Ratcliff (1978, 1981, 1985, 1988) for 2-choice decisions was applied to data from 2 letter identification experiments. In the experiments, stimulus letters were displayed and then masked, and the stimulus onset asynchrony between letter and mask was manipulated to vary accuracy from near chance to near ceiling. A standard reaction time procedure was used in one experiment and a deadline procedure in the other. Two hypotheses about the effect of masking on the information provided to the decision process were contrasted: (a) The output of perception to the decision process varies with time, so that the information used by the decision process rises and falls, reflecting the stimulus onset and mask onset. (b) The output of perception to the decision is constant over time, reflecting information integrated over the time between the stimulus and mask onsets. The data were well fit by the diffusion model only with the assumption of constant information over time.