Two groups of rats, handled on days (1-11) and days (21-32), and a nonhandled group were tested at 75 days of age on a modified two-way shuttle avoidance task. One-half of the animals were light-reared, the other half dark-reared. Measures taken included percentage correct avoidance responses (AR), intertrial interval responses (ITIR), escape response and avoidance response latencies (ERL and ARL), and A-Scores in percentage form (AR - ITIR). No differences in any of these measures except ERL was observed as a result of handling, though rearing in differential environments provided significant differences in AR, A-Scores, and ERL. Results were interpreted in terms of several relevant theories, with Melzack's (1968) hypothesis proving the most parsimonious in accounting for the data. / Arts, Faculty of / Psychology, Department of / Graduate
| Identifer | oai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/35087 |
| Date | January 1970 |
| Creators | Marvin, Jeffrey |
| Publisher | University of British Columbia |
| Source Sets | University of British Columbia |
| Language | English |
| Detected Language | English |
| Type | Text, Thesis/Dissertation |
| Rights | For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. |
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