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The Concentric Square Field: A multivariate test arena for analysis of explorative strategies
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Pharmacology. (Pharmacology)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences. (Neuropharmacology, Addiction and Behaviour)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences. (Neuropharmacology, Addiction and Behaviour)
2006 (English)In: Behavioural Brain Research, ISSN 0166-4328, E-ISSN 1872-7549, Vol. 168, no 1, 100-113 p.Article in journal (Refereed) Published
Abstract [en]

In this study, we describe the behavior of laboratory rats in a recently developed observation arena, the Concentric Square Field (CSF). The CSF contains a number of areas designed to provoke exploration and behaviors associated with risk assessment, risk taking and security seeking in an environment not previously experienced. The model includes sheltered, open and elevated areas, a hole board device, areas with different light conditions, and wall-enclosed corridors. The rationale behind the CSF is to meet the demand for multivariate test situations that are not predictive in the sense of previous definition of a specific purpose of measuring a certain mental state. We define multivariate as being a free choice of where to stay in areas of different qualities. In the present study, identification of risky as opposed to safe areas is based on the retrieval behavior in lactating females and hoarding of food pellets in food-deprived males. Furthermore, we describe the effects of pre-trial food deprivation, immobilization, social stress, strain differences (Sprague–Dawley, Wistar and Lister Hooded males), sex differences (Sprague–Dawley) and repeated testing. Besides the conventional statistics, a principal component analysis (PCA) helped to discriminate between the various categories tested. Our conclusion is that the multivariate and non-predictive test situation (CSF) and the use of PCA provide a good tool for ethoexperimental analysis.

Place, publisher, year, edition, pages
2006. Vol. 168, no 1, 100-113 p.
Keyword [en]
Analysis of Variance, Animals, Exploratory Behavior/*physiology, Female, Food Deprivation/physiology, Male, Phenotype, Principal Component Analysis, Psychology; Experimental/*instrumentation, Rats, Rats; Sprague-Dawley, Rats; Wistar, Research Support; Non-U.S. Gov't, Restraint; Physical, Risk, Sex Characteristics, Species Specificity, Stress; Psychological/psychology
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-80326DOI: 10.1016/j.bbr.2005.10.020PubMedID: 16356558OAI: oai:DiVA.org:uu-80326DiVA: diva2:108240
Available from: 2006-05-08 Created: 2006-05-08 Last updated: 2017-12-14Bibliographically approved

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Meyerson, Bengt J.Berg, MaritaRoman, Erika

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