Characterization of vocalizations emitted in isolation by California mouse (Peromyscus californicus) pups throughout the postnatal period.

ABSTRACT: Rodent species, such as monogamous and biparental California mice, produce vocalizations as a means of communication. A temporal examination of vocalizations produced by California mice pups in isolation was performed. Pup recordings were performed for 3 min at ∼10.00 and 14.00 hrs on early postnatal days (PND) 2-4, 7, 21, and 28. Once initial recordings were finished, pups were returned to the home cage with parents and any siblings for 5 minutes to determine if active biparental responses resulted in an enhanced vocalization response when pups were isolated and retested. We also sought to determine whether potential reduction in vocalizations by older pups might be due to procedure-habituation procedure associated with less anxiety and/or possibly decreased need for parental care. Vocali

SUBMITTER: Johnson SA 

PROVIDER: S-EPMC5310764 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature