Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 26 January 1962:
Vol. 135. no. 3500, pp. 318 - 319
DOI: 10.1126/science.135.3500.318
Prev | Table of Contents | Next

Articles

All-or-None versus Incremental Learning of Errorless Shock Escapes by the Rat

H. W. Coppock 1 and J. E. Freund 1

1 Departments of Psychology and Mathematics, Arizona State University, Tempe

Investigation showed that in a two-choice correction procedure the probability of an errorless response in those rats which have consistently made errors is not constant, as required by the all-or-none model, but increases with trials. Even an all-or-none model which provides for accidental error and accidental success is inadequate.

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)