Isolation induced changes in Guinea Pig Cavia porcellus pup distress whistles
| Autor: | Monticelli Patrícia F., Tokumaru Rosana S., Ades César |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | Anais da Academia Brasileira de Ciências, Vol 76, Iss 2, Pp 368-372 (2004) |
| Druh dokumentu: | article |
| ISSN: | 0001-3765 1678-2690 |
| Popis: | 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, werecorded 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. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|