... ) in air and light gas atmosphere with morphometric analyses of their vocal apparatus to infer the mechanism of vocal production. Increased fundamental frequencies in heliox indicated that pygmy mouse songs are produced by an aerodynamic whistle mechanism supported by the presence of a ventral pouch...

... for both call types were produced serially during the same breathing cycle. The finding demonstrates flexibility in the laryngeal–respiratory coordination during ultrasonic vocal production, which has not been previously documented physiologically in non-human mammals. Since only naïve males produced...

...Tobias Riede; Zhiheng Li; Isao T. Tokuda; Colleen G. Farmer ABSTRACT Sauropsid vocalization is mediated by the syrinx in birds and the larynx in extant reptiles; but whereas avian vocal production has received much attention, the vocal mechanism of basal reptilians is poorly understood...

...Verena R. Ohms; Gabriël J. L. Beckers; Carel ten Cate; Roderick A. Suthers SUMMARY Birdsong and human speech share many features with respect to vocal learning and development. However, the vocal production mechanisms have long been considered to be distinct. The vocal organ of songbirds is more...

... in the vocalizations of a songbird. Nature 395 , 67 -71. Fitch, W. T., Neubauer, J. and Herzel, H. ( 2002 ). Calls out of chaos: the adaptive significance of nonlinear phenomena in mammalian vocal production. Anim. Behav. 63 , 407 -418. Fitzpatrick, J. W. ( 1988 ). Why so many passerine birds...

...S. E. Roian Egnor; Carmen G. Iguina; Marc D. Hauser SUMMARY Auditory feedback is critical for the development and maintenance of speech in humans. In contrast, studies of nonhuman primate vocal production generally report that subjects show little reliance on auditory input. We examined the extent...

.... * Author for correspondence (e-mail: [email protected] ) 10 11 2004 © The Company of Biologists Limited 2005 2005 songbird vocal production directional sound radiation vocal tract resonance beak gape Songbirds produce vocalizations using syringeal structures...

...Cory T. Miller; Stephen Flusberg; Marc D. Hauser SUMMARY Vocal production can be highly deterministic, such that once the central nervous system generates a signal to call, the vocalization is emitted immune to external events. Conversely, vocal production can be modulated by auditory feedback...