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Comparison of female and male behavior in the elevated gradient of aversion
Bonuti, R.; Morato, S..
  • Bonuti, R.; Universidade de São Paulo. Ciências e Letras de Ribeirão Preto. Laboratório de Comportamento Exploratório, Faculdade de Filosofia. Ribeirão Preto. BR
  • Morato, S.; Universidade de São Paulo. Ciências e Letras de Ribeirão Preto. Laboratório de Comportamento Exploratório, Faculdade de Filosofia. Ribeirão Preto. BR
Braz. j. med. biol. res ; 55: e11892, 2022. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1360237
ABSTRACT
The elevated gradient of aversion (EGA) is an apparatus for investigating the exploratory behavior of rats in 3-min sessions, consisting of three different sections of the same size tunnel, closed arm, and open arm. Factorial analyses have defined three factors exploration, impulsivity, and self-protection. In general, male rats are placed in the tunnel end and tend to hesitate leaving this starting point. Then, they hesitate leaving the tunnel and entering the closed arm, which they explore and tend to avoid entering the open arm or even just stick their head in and not enter it at all. Since females were not used for this test and are reported to be more explorative than male rats, the present work aimed to compare the behavior of male and female rats in the EGA. Thirty male and 34 female Wistar rats were submitted to 3-min sessions in the EGA. In general, results indicated that females were different from males they explored more (Factor 1 - Exploration), are more impulsive (Factor 2 - Impulsivity), and are less anxious/fearful (Factor 3 - Self-protection). These results confirmed the results of other studies obtained with other apparatuses and show that females exhibit higher locomotion than males and are less anxious/fearful.


Full text: Available Index: LILACS (Americas) Language: English Journal: Braz. j. med. biol. res Journal subject: Biology / Medicine Year: 2022 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade de São Paulo/BR

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Full text: Available Index: LILACS (Americas) Language: English Journal: Braz. j. med. biol. res Journal subject: Biology / Medicine Year: 2022 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade de São Paulo/BR