Age-Related Changes in Grooming Behavior and Motor Activity in Female Rats

1999 ◽  
Vol 66 (3) ◽  
pp. 481-484 ◽  
Author(s):  
T Scimonelli ◽  
M Marucco ◽  
M.E Celis
Author(s):  
Sergey Sudakov ◽  
Elena Alekseeva ◽  
Galina Nazarova ◽  
Valentina Bashkatova

The aim of this work was to study age-related changes in the behaviour of adult Wistar rats using the open field (OF) and elevated plus maze (EPM) tests. Behavioural changes related to motor activity and anxiety were of particular interest. Results showed that as male and female rats progressed from 2 to 5 months of age there was a decrease in the level of motor and exploratory activities, and an increase in the level of anxiety. Age-related changes were dependent upon initial individual characteristics of behaviour. For example, animals that demonstrated high motor activity at 2 months become significantly less active by 5 months, and animals that showed a low level of anxiety at 2 months become more anxious by 5 months. Low-activity and high-anxiety rats did not show any significant age-related changes in OF and EPM tests from 2 to 5 months of age, except for a decrease in the number of rearings in EPM. Significant individual differences in the behaviour of rats in OF and EPM tests observed at 2 months were not apparent by 5 months.


Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2282
Author(s):  
Sergey K. Sudakov ◽  
Elena V. Alekseeva ◽  
Galina A. Nazarova ◽  
Valentina G. Bashkatova

The aim of this work was to study age-related changes in the behaviour of adult Wistar rats using the open field (OF) and elevated plus maze (EPM) tests. Behavioural changes related to motor activity and anxiety were of particular interest. Results showed that as male and female rats progressed from 2 to 5 months of age, there was a decrease in the level of motor and exploratory activities and an increase in their level of anxiety. Age-related changes were dependent upon initial individual characteristics of behaviour. For example, animals that demonstrated high motor activity at 2 months become significantly less active by 5 months, and animals that showed a low level of anxiety at 2 months become more anxious by 5 months. Low-activity and high-anxiety rats did not show any significant age-related changes in OF and EPM tests from 2 to 5 months of age, except for a decrease in the number of rearings in the EPM. Thus, the behaviour of the same adult rat at 2 and 5 months of age is significantly different, which may lead to differences in the experimental results of physiological and pharmacological studies using adult animals of different ages.


2011 ◽  
Vol 492 (2) ◽  
pp. 119-123 ◽  
Author(s):  
Xiao-yan Shi ◽  
Yuan-yu Zhao ◽  
Shu Yang ◽  
Chen Li ◽  
Lin Chen ◽  
...  

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