... vocalizations develops in the absence of early social experiences. Here, we investigate the auditory-evoked neural responses of juvenile red-winged blackbirds (Agelaius phoeniceus) , a nonparasitic (parental) species within the Icterid family and contrast these results with a closely related Icterid parasitic...

... to identify both shared and derived mechanisms of vocalization among toadfishes. Here, vocal nerve labeling and intracellular in vivo recording and staining delineated the hindbrain vocal network of the Gulf toadfish Opsanus beta. Dextran-biotin labeling of the vocal nerve or intracellular neurobiotin fills...

... a preferential-looking paradigm to test whether laboratory-housed rhesus monkeys could ‘spontaneously' (i.e., in the absence of operant training) use multimodal communication stimuli to discriminate between known conspecifics. The multimodal stimulus was a silent movie of 2 monkeys vocalizing and an audio file...

... examines species recognition in naturally hybridizing sister species, California and Gambel’s quail (Callipepla californica and Callipepla gambelii) , that have vocalizations which are not learned. Specifically, this study tests whether being raised in a vocalizing mixed-species cohort affects neural...

...S. Anschel All presently known naturally occurring call types, except those associated with dominance threat, were elicited with electrical brain stimulation in the turkey. Most vocalizations closely resembled contact and alarm calls. A concentration of sites for contact calls...

... interruption sites lie in the lateral hypothalamus in areas from which positive reinforcement can be obtained. Startle calls, such as can be obtained from sensory structures, also occur at some lateral sites. Parallels with mammalian work are discussed. Hypothalamus Vocalization Conscious chicks...

...Robert S. Schmidt The pretrigeminal nucleus (a structure that may be involved in vocalization) was found to stain strongly for succinic dehydrogenase in seven species of anurans (toads and frogs) representing four families and two suborders. In Xenopus laevis this nucleus seemed to be identical...

...David S. Vicario Vocal learning through imitation underlies both human speech acquisition and song acquisition in oscine birds; both processes depend on auditory information. In songbirds, a specialized forebrain pathway is responsible for producing the learned temporal and acoustic features...

... of interneurons. We now propose that novel rhythmic circuits were innovations associated with the adoption of cardiac and respiratory pumps during the protochordate-vertebrate transition. We further suggest that the pattern-generating circuits of more recent innovations, such as the vocal, electromotor...

... supporting their proposed role in social vocal behaviors and probably in auditory processing. In general, OT showed a more widespread distribution in the forebrain than AVP. The features of OT- and AVP-ir neurons such as the shape, diameter and strength of immunoreactivity are summarized in tables 1...

... the results of experiments on laboratory-housed rhesus monkeys using both species-typical vocalizations and band-pass noise. Paralleling the approach used in field studies of this species, we used a habituation-discrimination paradigm in which auditory stimuli were presented and a monkey’s orienting responses...

...Asif A. Ghazanfar; Duncan Smith-Rohrberg; Marc D. Hauser An understanding of the acoustic cues that animals use to categorize their vocalizations has important implications for the way we design neuroethological investigations of auditory function. Compared to other species, we know relatively...

.... The pattern identified is consistent with that reported in other teleosts, including both vocal and non-vocal species, and clarifies earlier reports of the organization of hindbrain octaval nuclei in toadfish and the closely related midshipman fish. 5 7 2001 The batrachoidids, or toadfishes...

...Bruce A. Carlson; Andrew H. Bass Similar to many teleost fish, squirrelfish (family Holocentridae) produce vocalizations by the contraction of muscles that lead to vibration of the swimbladder. We used biotinylated compounds to identify the position and extent of vocal motor neurons in comparison...

...Friedrich Ladich; Andrew H. Bass Among teleost fishes, representatives of several distantly related groups have sound-producing (sonic/vocal) muscles associated with the swimbladder or pectoral girdle/fin. Here, the diversity of vocal organs and central motor pathways in four families of catfish...