THRESHOLD HYPOTHESIS FOR FLASH PERCEPTION
成果类型：
Article
署名作者：
EAVES, D; BURR, AH
署名单位：
Simon Fraser University
刊物名称：
BIOMETRIKA
ISSN/ISSBN：
0006-3444
发表日期：
1978
页码：
503509
关键词：
摘要：
The threshold hypothesis holds that the vector of L population proportions of flashes seen corresponding to L different flash intensities lies on a certain discrete family of curves in the unit L-cube. Tests are described of this sharp hypothesis against vague alternative hypotheses that these proportions are more or less unrelated. The calculations are described for the posterior distributions of the threshold number (N) of photons needed for flash perceptions and of a photon receptivity coefficient (.alpha.). Each N indexes a curve over .alpha. > 0. Long-standing data are analyzed and support the hypothesis. The posterior distributions of (N,.alpha.), of N and posterior density of .alpha. are given.