Isolation induced changes in Guinea Pig Cavia porcellus pup distress whistles.
An Acad Bras Cienc
; 76(2): 368-72, 2004 Jun.
Article
em En
| MEDLINE
| ID: mdl-15258652
Guinea Pig Cavia porcellus pups emit high-pitched distress whistles when separated from their mother. In order to assess the influence of the duration of a brief isolation period on whistle acoustic structure, we recorded the distress whistles of six 8-day old pups separated for 15 min from their group in a novel environment and compared the mean values of the first and last 30 whistle notes. Acoustic analysis revealed, throughout the session, a significant decrease in whistle duration, an increase in mean frequency and a tendency for a decrease in number of harmonics in the first part of the note. Results demonstrate that, throughout a brief isolation period, the vocal response of Guinea Pig pups to isolation undergoes structural changes possibly related to time-dependent changes in motivational state.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Isolamento Social
/
Vocalização Animal
/
Cobaias
Aspecto:
Determinantes_sociais_saude
Limite:
Animals
Idioma:
En
Revista:
An Acad Bras Cienc
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil