Social interactions among rats housed in grouped and enriched conditions
作者： Michael J. Renner , Mark R. Rosenzweig
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摘要: Two experiments examine the hypothesis that brain differences found in environmental enrichment are due to social interaction. Both compare enriched versus group housed rats using videotape records of home cage activity, scored with a protocol developed by authors. Experiment 1 examines interactions and first 30 days postweaning; In 2 were differential environments from 90 120 age, an age at which have been reported no longer engage play; addition, weights sections obtained sacrifice these showed typical patterns among environments. Neither experiment revealed any consistent pattern interaction, either chi-square comparisons overall profiles activity or discriminant analysis applied behavioral observations. No evidence was support play is responsible for effects enrichment.
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