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Full-Text Articles in Life Sciences
Relative Importance Of Male Song On Female Mate Selection In The Zebra Finch (Taeniopygia Guttata), Casey Sprague
Relative Importance Of Male Song On Female Mate Selection In The Zebra Finch (Taeniopygia Guttata), Casey Sprague
Scripps Senior Theses
In the zebra finch (Taeniopygia guttata), song and its social context play an important role in female mate selection. The song of the zebra finch is unique in that it can only be produced by males, which makes the species ideal for analyzing the components of male song that influence female song preference and mate selection. There are three consistent features of zebra finch song that affect female mate preference: 1) the amount of time a male sings, 2) the size and complexity of his song repertoire, and 3) the structural conformation to species or population norms (reviewed …
A Synaptic Basis For Auditory-Vocal Integration In The Songbird, Eric E. Bauer, Melissa J. Coleman, Todd F. Roberts, Arani Roy, Jonathan F. Prather, Richard Mooney
A Synaptic Basis For Auditory-Vocal Integration In The Songbird, Eric E. Bauer, Melissa J. Coleman, Todd F. Roberts, Arani Roy, Jonathan F. Prather, Richard Mooney
WM Keck Science Faculty Papers
Songbirds learn to sing by memorizing a tutor song that they then vocally mimic using auditory feedback. This developmental sequence suggests that brain areas that encode auditory memories communicate with brain areas for learned vocal control. In the songbird, the secondary auditory telencephalic region caudal mesopallium (CM) contains neurons that encode aspects of auditory experience. We investigated whether CM is an important source of auditory input to two sensorimotor structures implicated in singing, the telencephalic song nucleus interface (NIf) and HVC. We used reversible inactivation methods to show that activity in CM is necessary for much of the auditory-evoked activity …
Thalamic Gating Of Auditory Responses In Telencephalic Song Control Nuclei, Melissa J. Coleman, Arani Roy, J. Martin Wild, Richard Mooney
Thalamic Gating Of Auditory Responses In Telencephalic Song Control Nuclei, Melissa J. Coleman, Arani Roy, J. Martin Wild, Richard Mooney
WM Keck Science Faculty Papers
In songbirds, nucleus Uvaeformis (Uva) is the sole thalamic input to the telencephalic nucleus HVC (used as a proper name), a sensorimotor structure essential to learned song production that also exhibits state dependent responses to auditory presentation of the bird’s own song (BOS). The role of Uva in influencing HVC auditory activity is unknown. Using in vivo extracellular and intracellular recordings in urethane-anesthetized zebra finches, we characterized the auditory properties of Uva and examined its influence on auditory activity in HVC and in the telencephalic nucleus interface (NIf), the main auditory afferent of HVC and a corecipient of Uva input. …
Synaptic Transformations Underlying Highly Selective Auditory Representations Of Learned Birdsong, Melissa J. Coleman, Richard Mooney
Synaptic Transformations Underlying Highly Selective Auditory Representations Of Learned Birdsong, Melissa J. Coleman, Richard Mooney
WM Keck Science Faculty Papers
Stimulus-specific neuronal responses are a striking characteristic of several sensory systems, although the synaptic mechanisms underlying their generation are not well understood. The songbird nucleus HVC (used here as a proper name) contains projection neurons (PNs) that fire temporally sparse bursts of action potentials to playback of the bird's own song (BOS) but are essentially silent when presented with other acoustical stimuli. To understand how such remarkable stimulus specificity emerges, it is necessary to compare the auditory-evoked responsiveness of the afferents of HVC with synaptic responses in identified HVC neurons. We found that inactivating the interfacial nucleus of the nidopallium …