In the present study we carried out a series of experiments in Swiss albino male mice to investigate a) the effects of previous social experience on the levels of anxiety in the elevated plus-maze (EPM) and b) whether the response of males in the EPM differs in relation to the different social status. In Experiment 1 we tested in the EPM male mice that received different social experience. Results showed that individually housing generally increased measures of anxiety in the EPM compared with the group-housing condition. Moreover, aggressive males, screened during dyadic encounters in a neutral cage, displayed the highest levels of anxiety relative to the other experimental conditions. In Experiment 2 male mice remained group-housed and were observed to record their social status. Results showed that those animals rated as socially dominant displayed a higher level of EPM anxiety relative to subordinates. From an ethological perspective our findings may be interpreted in terms of coping strategies, with aggressive/dominant animals typified by higher levels of risk assessment and open-arm avoidance than defensive/subordinate animals. PMID: 9618005 [PubMed - indexed for MEDLINE]

Interindividual variablity in the Swiss albino mice: relationship between social factors, aggression and anxiety / Ferrari, Pier Francesco; Palanza, Paola; Parmigiani, Stefano; Rj, Rodgers. - In: PHYSIOLOGY & BEHAVIOR. - ISSN 0031-9384. - 63(5):(1998), pp. 63 (5)-821. [10.1016/S0031-9384(97)00544-1]

Interindividual variablity in the Swiss albino mice: relationship between social factors, aggression and anxiety.

FERRARI, Pier Francesco;PALANZA, Paola;PARMIGIANI, Stefano;
1998-01-01

Abstract

In the present study we carried out a series of experiments in Swiss albino male mice to investigate a) the effects of previous social experience on the levels of anxiety in the elevated plus-maze (EPM) and b) whether the response of males in the EPM differs in relation to the different social status. In Experiment 1 we tested in the EPM male mice that received different social experience. Results showed that individually housing generally increased measures of anxiety in the EPM compared with the group-housing condition. Moreover, aggressive males, screened during dyadic encounters in a neutral cage, displayed the highest levels of anxiety relative to the other experimental conditions. In Experiment 2 male mice remained group-housed and were observed to record their social status. Results showed that those animals rated as socially dominant displayed a higher level of EPM anxiety relative to subordinates. From an ethological perspective our findings may be interpreted in terms of coping strategies, with aggressive/dominant animals typified by higher levels of risk assessment and open-arm avoidance than defensive/subordinate animals. PMID: 9618005 [PubMed - indexed for MEDLINE]
Interindividual variablity in the Swiss albino mice: relationship between social factors, aggression and anxiety / Ferrari, Pier Francesco; Palanza, Paola; Parmigiani, Stefano; Rj, Rodgers. - In: PHYSIOLOGY & BEHAVIOR. - ISSN 0031-9384. - 63(5):(1998), pp. 63 (5)-821. [10.1016/S0031-9384(97)00544-1]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2435040
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