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Full-Text Articles in Social and Behavioral Sciences
The Neural Mechanisms Underlying The Perception And Production Of Learned Vocalizations In Songbirds, Shannon Katie Mischler
The Neural Mechanisms Underlying The Perception And Production Of Learned Vocalizations In Songbirds, Shannon Katie Mischler
Electronic Thesis and Dissertation Repository
Songbirds produce a wide array of vocalizations, including song, and learned and innate calls. Songs and calls can be functionally defined. Songs are typically used to attract potential mates and defend one’s territory, whereas calls are used for everything else, such as advertising the presence of a predator, or location of a food source, and maintaining contact with members of one’s flock. The purpose of this thesis was to better understand the neural mechanisms underlying call production and perception in two songbird species; the black-capped chickadee (Poecile atricapillus) and the zebra finch (Taeniopygia guttata). My objectives …
The Effects Of Corticosterone And Social Isolation On Song Stereotypy And Neural Plasticity In Zebra Finches, Pavlina Faltynek
The Effects Of Corticosterone And Social Isolation On Song Stereotypy And Neural Plasticity In Zebra Finches, Pavlina Faltynek
Electronic Thesis and Dissertation Repository
Birdsong is important to male songbirds’ reproductive success. For male birds it is important to consistently reproduce their song with high stereotypy, and the effects of stress on song consistency are little studied. My current study examined the effects of social isolation and corticosterone administration on song production and migrating and apoptotic neurons in the song-control brain region HVC of zebra finches. All males significantly decreased in song stereotypy over time, independent of treatment or housing. Males who were housed in isolation had a significant decrease in their latency to sing, as well as a decrease in arborization in migratory …