Barn owl and sound localization
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چکیده
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 کاملMonaural occlusion alters sound localization during a sensitive period in the barn owl.
Sound localization was disrupted in young barn owls by chronically plugging one ear. Owls that were younger than 8 weeks of age at the time of ear plugging recovered normal localization accuracy while plugged, whereas those that were older than 8 weeks at the time of ear plugging did not. The end of the sensitive period for the adjustment of sound localization accuracy coincides with the matura...
متن کاملAn Application of Abstract Algebra to the Neural Code for Sound Localization in the Barn Owl
Patterns of neural firing can be viewed as a binary code with each neuron as a bit, with neurons which actively fire in response to a stimulus associated to a 1 and those which do not fire associated to a 0. In previous work, Curto et al. demonstrate that by studying the neural code as a ring, information can be recovered about the ways the regions over which the different neurons fire intersec...
متن کاملRepresentation of sound localization cues in the auditory thalamus of the barn owl.
Barn owls can localize a sound source using either the map of auditory space contained in the optic tectum or the auditory forebrain. The auditory thalamus, nucleus ovoidalis (N.Ov), is situated between these two auditory areas, and its inactivation precludes the use of the auditory forebrain for sound localization. We examined the sources of inputs to the N.Ov as well as their patterns of term...
متن کاملThe Computation of Sound Source Elevation in the Barn Owl
The midbrain of the barn owl contains a map-like representation of sound source direction which is used to precisely orient the head toward targets of interest. Elevation is computed from the interaural difference in sound level. We present models and computer simulations of two stages of level difference processing which qualitatively agree with known anatomy and physiology, and make several s...
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ژورنال
عنوان ژورنال: Acoustical Science and Technology
سال: 2015
ISSN: 1346-3969,1347-5177
DOI: 10.1250/ast.36.275