منابع مشابه
Barn owl and sound localization
The barn owl is a nocturnal predator with excellent sound localization ability. Due to the asymmetric ears of this bird, the interaural time and level differences, respectively, provide information for the horizontal and vertical direction of a sound source. Forty years of behavioral, anatomical and physiological research on the owl’s auditory system have revealed that these two acoustic cues a...
متن کاملVernier acuity in barn owls
Vernier acuity thresholds were obtained psychophysically in three adult barn owls with vertical bars and sinusoidal gratings. A minimal displacement threshold of 0.58 arcmin was observed with the bar stimulus under binocular viewing conditions. The mean binocular bar threshold was 2.51 arcmin. Bar thresholds were lower than grating thresholds. Monocular thresholds, obtained in one bird only, we...
متن کاملWhy are barn owls a model system for sound localization?
In 1971, Roger Payne published the paper ‘Acoustic Location of Prey by Barn Owls (Tyto alba)’. Payne had conducted the underlying experiments at Cornell University in partial fulfilment of the requirements for his PhD, which he obtained in 1961. When the paper was published, Payne, a zoologist, was a professor at Rockefeller University. By that time he was already famous for his discovery of so...
متن کاملNeuronal Maps for Sensory-Motor Control in the Barn Owl
The bam owl has fused visual/auditory/motor representations of space in its midbrain which are used to orient the head so that visual or auditory stimuli are centered in the visual field of view. We present models and computer simulations of these structures which address various problems, inclu<lln~ the construction of a map of space from auditory sensory information, and the problem of drivin...
متن کاملForebrain pathway for auditory space processing in the barn owl.
The forebrain plays an important role in many aspects of sound localization behavior. Yet, the forebrain pathway that processes auditory spatial information is not known for any species. Using standard anatomic labeling techniques, we used a "top-down" approach to trace the flow of auditory spatial information from an output area of the forebrain sound localization pathway (the auditory archist...
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ژورنال
عنوان ژورنال: Sykepleien
سال: 2010
ISSN: 1890-2936
DOI: 10.4220/sykepleiens.2010.0049