Abstract:
:The aim of the present study was to determine the influence of thyroid function on the activity and exploratory behaviour of male Wistar rats. Dysthyroidism was induced by adding drugs to their drinking water from the ninth day of gestation. This method is not as stressful as daily thyroxine injections or thyroidectomy, and therefore did not affect the analysed behavioural patterns. After weaning, the drugs were administered to the young rats until the end of the experiment. Activity and exploration were measured using the Boissier test, a light-darkness test and an open-field test when they were 77 days old. In order to verify that the animals' motor capacity had not been impaired, a psychomotor battery was used. Chronic hyperthyroidism produced a significant increase in activity, but did not affect exploration. On the other hand, hypothyroidism did not affect activity, but did increase exploration. This increase in exploration was observed in activity-independent behavioural parameters, such as head dipping and glancing.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Sala-Roca J,Martí-Carbonell MA,Garau A,Darbra S,Balada Fdoi
10.1016/s0031-9384(02)00815-6subject
Has Abstractpub_date
2002-09-01 00:00:00pages
125-33issue
1eissn
0031-9384issn
1873-507Xpii
S0031938402008156journal_volume
77pub_type
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