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Text
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URL Address
<a href="http://doi.org/10.1016/j.neubiorev.2010.12.015" target="_blank" rel="noreferrer noopener">http://doi.org/10.1016/j.neubiorev.2010.12.015</a>
Pages
2073–2083
Issue
10
Volume
35
Dublin Core
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Title
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Neural processing of target distance by echolocating bats: functional roles of the auditory midbrain.
Publisher
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Neuroscience and biobehavioral reviews
Date
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2011
2011-11
Subject
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Animals; Auditory Cortex/physiology; Auditory Pathways/*physiology; Auditory Perception/*physiology; Brain Mapping/psychology; Chiroptera/*physiology; Echolocation/*physiology; Inferior Colliculi/*physiology; Models; Neurological; Neurons/physiology
Creator
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Wenstrup Jeffrey J; Portfors Christine V
Description
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Using their biological sonar, bats estimate distance to avoid obstacles and capture moving prey. The primary distance cue is the delay between the bat's emitted echolocation pulse and the return of an echo. The mustached bat's auditory midbrain (inferior colliculus, IC) is crucial to the analysis of pulse-echo delay. IC neurons are selective for certain delays between frequency modulated (FM) elements of the pulse and echo. One role of the IC is to create these "delay-tuned", "FM-FM" response properties through a series of spectro-temporal integrative interactions. A second major role of the midbrain is to project target distance information to many parts of the brain. Pathways through auditory thalamus undergo radical reorganization to create highly ordered maps of pulse-echo delay in auditory cortex, likely contributing to perceptual features of target distance analysis. FM-FM neurons in IC also project strongly to pre-motor centers including the pretectum and the pontine nuclei. These pathways may contribute to rapid adjustments in flight, body position, and sonar vocalizations that occur as a bat closes in on a target.
Identifier
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<a href="http://doi.org/10.1016/j.neubiorev.2010.12.015" target="_blank" rel="noreferrer noopener">10.1016/j.neubiorev.2010.12.015</a>
Rights
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
2011
Animals
Auditory Cortex/physiology
Auditory Pathways/*physiology
Auditory Perception/*physiology
Brain Mapping/psychology
Chiroptera/*physiology
College of Anatomy & Neurobiology
Department of Anatomy & Neurobiology
Echolocation/*physiology
Inferior Colliculi/*physiology
Models
NEOMED College of Medicine
Neurological
Neurons/physiology
Neuroscience and biobehavioral reviews
Portfors Christine V
Wenstrup Jeffrey J