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J Exp Anal Behav. 2002 Sep;78(2):127-60.

Molecular analyses of the principal components of response strength.

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  • 1Department of Psychology, Arizona State University, Tempe 85287-1104, USA. killeen@asu.edu

Abstract

Killeen and Hall (2001) showed that a common factor called strength underlies the key dependent variables of response probability, latency, and rate, and that overall response rate is a good predictor of strength. In a search for the mechanisms that underlie those correlations, this article shows that (a) the probability of responding on a trial is a two-state Markov process; (b) latency and rate of responding can be described in terms of the probability and period of stochastic machines called clocked Bernoulli modules, and (c) one such machine, the refractory Poisson process, provides a functional relation between the probability of observing a response during any epoch and the rate of responding. This relation is one of proportionality at low rates and curvilinearity at higher rates.

PMID:
12216975
[PubMed - indexed for MEDLINE]
PMCID:
PMC1284892
Free PMC Article
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