1
40
4
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1152/jn.1999.82.3.1326" target="_blank" rel="noreferrer noopener">http://doi.org/10.1152/jn.1999.82.3.1326</a>
Pages
1326–1338
Issue
3
Volume
82
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Delay-tuned neurons in the inferior colliculus of the mustached bat: implications for analyses of target distance.
Publisher
An entity responsible for making the resource available
Journal of neurophysiology
Date
A point or period of time associated with an event in the lifecycle of the resource
1999
1999-09
Subject
The topic of the resource
Animal/physiology; Animals; Chiroptera/*physiology; Echolocation/*physiology; Inferior Colliculi/cytology/*physiology; Neural Inhibition/physiology; Neurons/*physiology; Reaction Time/physiology; Vocalization
Creator
An entity primarily responsible for making the resource
Portfors C V; Wenstrup J J
Description
An account of the resource
We examined response properties of delay-tuned neurons in the central nucleus of the inferior colliculus (ICC) of the mustached bat. In the mustached bat, delay-tuned neurons respond best to the combination of the first-harmonic, frequency-modulated (FM1) sweep in the emitted pulse and a higher harmonic frequency-modulated (FM2, FM3 or FM4) component in returning echoes and are referred to as FM-FM neurons. We also examined H1-CF2 neurons. H1-CF2 neurons responded to simultaneous presentation of the first harmonic (H1) in the emitted pulse and the second constant frequency (CF2) component in returning echoes. These neurons served as a comparison as they are thought to encode different features of sonar targets than FM-FM neurons. Only 7% of our neurons (14/198) displayed a single excitatory tuning curve. The rest of the neurons (184) displayed complex responses to sounds in two separate frequency bands. The majority (51%, 101) of neurons were facilitated by the combination of specific components in the mustached bat's vocalizations. Twenty-five percent showed purely inhibitory interactions. The remaining neurons responded to two separate frequencies, without any facilitation or inhibition. FM-FM neurons (69) were facilitated by the FM1 component in the simulated pulse and a higher harmonic FM component in simulated echoes, provided the high-frequency signal was delayed the appropriate amount. The delay producing maximal facilitation ("best delay") among
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1152/jn.1999.82.3.1326" target="_blank" rel="noreferrer noopener">10.1152/jn.1999.82.3.1326</a>
Rights
Information about rights held in and over the resource
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
1999
Animal/physiology
Animals
Chiroptera/*physiology
College of Anatomy & Neurobiology
Department of Anatomy & Neurobiology
Echolocation/*physiology
Inferior Colliculi/cytology/*physiology
Journal of neurophysiology
NEOMED College of Medicine
Neural Inhibition/physiology
Neurons/*physiology
Portfors C V
Reaction Time/physiology
Vocalization
Wenstrup J J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1152/jn.00056.2005" target="_blank" rel="noreferrer noopener">http://doi.org/10.1152/jn.00056.2005</a>
Pages
314–326
Issue
1
Volume
94
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Leading inhibition to neural oscillation is important for time-domain processing in the auditory midbrain.
Publisher
An entity responsible for making the resource available
Journal of neurophysiology
Date
A point or period of time associated with an event in the lifecycle of the resource
2005
2005-07
Subject
The topic of the resource
*Periodicity; Acoustic Stimulation/methods; Action Potentials/drug effects/physiology; Animals; Anura; Auditory Pathways/physiology; Bicuculline/pharmacology; Chiroptera; Dose-Response Relationship; Echolocation/*physiology; GABA Antagonists/pharmacology; Mesencephalon/*cytology/physiology; Neural Inhibition/drug effects/*physiology; Neurons/drug effects/*physiology; Newborn; Radiation; Reaction Time/drug effects/*physiology; Sound; Species Specificity; Time Factors
Creator
An entity primarily responsible for making the resource
Galazyuk Alexander V; Lin Wenyu; Llano Daniel; Feng Albert S
Description
An account of the resource
A number of central auditory neurons exhibit paradoxical latency shift (PLS), a response characterized by longer response latencies at higher sound levels. PLS neurons are known to play a role in target ranging for echolocating bats that emit frequency-modulated sounds. We recently reported that early inhibition of unit's oscillatory discharges is critical for PLS in the inferior colliculus (IC) of little brown bats. The goal of this study was to determine in echolocating bats and in non-echolocating animals (frogs): 1) the detailed characteristics of PLS and whether PLS was dependent on sound level, frequency, and duration; 2) the time course of inhibition underlying PLS using a paired-pulse paradigm. We found that 22% of IC neurons in bats and 15% in frogs exhibited periodic discharge patterns in response to tone pulses at high sound levels. The firing periodicity was unit specific and independent of sound level and duration. Other IC neurons (28% in bats; 14% in frogs) exhibited PLS. These PLS neurons shared several response characteristics: 1) PLS was largely independent of sound frequency and 2) the magnitude of shift in first-spike latency was either duration dependent or duration tolerant. For PLS neurons, application of bicuculline abolished PLS and unmasked the unit's periodical firing pattern that served as the building block for PLS. In response to paired sound pulses, PLS neurons exhibited delay-dependent response suppression, confirming that high-threshold leading inhibition was responsible for PLS. Results also revealed the timing of excitatory and inhibitory inputs underlying PLS and its role in time-domain processing.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1152/jn.00056.2005" target="_blank" rel="noreferrer noopener">10.1152/jn.00056.2005</a>
Rights
Information about rights held in and over the resource
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
*Periodicity
2005
Acoustic Stimulation/methods
Action Potentials/drug effects/physiology
Animals
Anura
Auditory Pathways/physiology
Bicuculline/pharmacology
Chiroptera
Department of Anatomy & Neurobiology
Dose-Response Relationship
Echolocation/*physiology
Feng Albert S
GABA Antagonists/pharmacology
Galazyuk Alexander V
Journal of neurophysiology
Lin Wenyu
Llano Daniel
Mesencephalon/*cytology/physiology
NEOMED College of Medicine
Neural Inhibition/drug effects/*physiology
Neurons/drug effects/*physiology
Newborn
Radiation
Reaction Time/drug effects/*physiology
Sound
Species Specificity
Time Factors
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
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
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Neural processing of target distance by echolocating bats: functional roles of the auditory midbrain.
Publisher
An entity responsible for making the resource available
Neuroscience and biobehavioral reviews
Date
A point or period of time associated with an event in the lifecycle of the resource
2011
2011-11
Subject
The topic of the resource
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
An entity primarily responsible for making the resource
Wenstrup Jeffrey J; Portfors Christine V
Description
An account of the resource
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
An unambiguous reference to the resource within a given context
<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
Information about rights held in and over the resource
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
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1523/jneurosci.21-03-j0002.2001" target="_blank" rel="noreferrer noopener">http://doi.org/10.1523/jneurosci.21-03-j0002.2001</a>
Pages
RC124–RC124
Issue
3
Volume
21
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Spectral integration in the inferior colliculus: role of glycinergic inhibition in response facilitation.
Publisher
An entity responsible for making the resource available
The Journal of neuroscience : the official journal of the Society for Neuroscience
Date
A point or period of time associated with an event in the lifecycle of the resource
2001
2001-02
Subject
The topic of the resource
Animals; Acoustic Stimulation/methods; Neural Inhibition/drug effects/*physiology; Chiroptera; Inferior Colliculi/drug effects/*physiology; Wakefulness/physiology; Auditory Pathways/drug effects/physiology; Echolocation/*physiology; Glycine Agents/administration & dosage; Glycine/*metabolism; Iontophoresis; Pitch Perception/drug effects/*physiology; Strychnine/administration & dosage; Electrodes; Animal/physiology; Vocalization; Implanted
Creator
An entity primarily responsible for making the resource
Wenstrup J J; Leroy S A
Description
An account of the resource
This study examined the contribution of glycinergic inhibition to the time-sensitive spectral integration performed by neurons in the inferior colliculus of the mustached bat (Pteronotus parnellii). These neurons are sometimes called combination-sensitive because they display facilitatory (or inhibitory) responses to the combination of distinct spectral elements in sonar or social vocalizations. Present in a wide range of vertebrates, their temporally and spectrally selective integration is thought to endow them with the ability to discriminate among social vocalizations or to analyze particular cues concerning sonar targets. The mechanisms that underlie these responses or the sites in the auditory system where they are created are not known. We examined combination-sensitive neurons that are facilitated by the presentation of two different harmonic elements of the bat's sonar call and echo. Responses of 24 single units were recorded before and during local application of strychnine, an antagonist of glycinergic inhibition. For each of the 24 units, strychnine application eliminated or greatly reduced temporally sensitive facilitation. There was no difference in this effect for neurons tuned to frequencies associated with the frequency-modulated or the constant-frequency sonar components. These results are unusual because glycine is considered to be an inhibitory neurotransmitter, but here it appears to be essential for the expression of combination-sensitive facilitation. The findings provide strong evidence that facilitatory combination-sensitive response properties present throughout the mustached bat's auditory midbrain, thalamus, and cortex originate through neural interactions in the inferior colliculus.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1523/jneurosci.21-03-j0002.2001" target="_blank" rel="noreferrer noopener">10.1523/jneurosci.21-03-j0002.2001</a>
Rights
Information about rights held in and over the resource
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
2001
Acoustic Stimulation/methods
Animal/physiology
Animals
Auditory Pathways/drug effects/physiology
Chiroptera
College of Anatomy & Neurobiology
Department of Anatomy & Neurobiology
Echolocation/*physiology
Electrodes
Glycine Agents/administration & dosage
Glycine/*metabolism
Implanted
Inferior Colliculi/drug effects/*physiology
Iontophoresis
Leroy S A
NEOMED College of Medicine
Neural Inhibition/drug effects/*physiology
Pitch Perception/drug effects/*physiology
Strychnine/administration & dosage
The Journal of neuroscience : the official journal of the Society for Neuroscience
Vocalization
Wakefulness/physiology
Wenstrup J J