| Abstract: | Examined age differences in a cer paradigm. 72 sprague-dawley albino rats were treated at 15, 22, 35, or 70 days of age in 1 of 3 ways: (a) paired tone-light and shock trials; (b) unpaired tone-light and shock trials; or (c) no treatment at all. Subsequent tests in a suppression of drinking situation show that only the 15-day old ss failed to acquire a cer, as measured by the difference between paired and unpaired groups. Older ss extinguished more quickly than younger ss and also habituated an unconditioned suppression response more quickly. Results are related to thompson's model, and to the literature on the development of learning abilities. (french summary) (17 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
