1
40
2
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Text
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URL Address
<a href="http://doi.org/10.1152/jn.00953.2015" target="_blank" rel="noreferrer noopener">http://doi.org/10.1152/jn.00953.2015</a>
Pages
868–886
Issue
2
Volume
115
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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Two distinct representations of social vocalizations in the basolateral amygdala.
Publisher
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Journal of neurophysiology
Date
A point or period of time associated with an event in the lifecycle of the resource
2016
2016-02
Subject
The topic of the resource
*Discrimination (Psychology); *Social Behavior; *Vocalization; acoustic communication; Action Potentials; Amygdala/cytology/*physiology; Animal; Animals; bat; Chiroptera; electrocardiogram; Eptesicus fuscus; Female; Heart Rate; Male; Neurons/classification/*physiology; vocalizations
Creator
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Gadziola Marie A; Shanbhag Sharad J; Wenstrup Jeffrey J
Description
An account of the resource
Acoustic communication signals carry information related to the types of social interactions by means of their "acoustic context," the sequencing and temporal emission pattern of vocalizations. Here we describe responses to natural vocal sequences in adult big brown bats (Eptesicus fuscus). We first assessed how vocal sequences modify the internal affective state of a listener (via heart rate). The heart rate of listening bats was differentially modulated by vocal sequences, showing significantly greater elevation in response to moderately aggressive sequences than appeasement or neutral sequences. Next, we characterized single-neuron responses in the basolateral amygdala (BLA) of awake, restrained bats to isolated syllables and vocal sequences. Two populations of neurons distinguished by background firing rates also differed in acoustic stimulus selectivity. Low-background neurons (\textless1 spike/s) were highly selective, responding on average to one tested stimulus. These may participate in a sparse code of vocal stimuli, in which each neuron responds to one or a few stimuli and the population responds to the range of vocalizations across behavioral contexts. Neurons with higher background rates (\textgreater/=1 spike/s) responded broadly to tested stimuli and better represented the timing of syllables within sequences. We found that spike timing information improved the ability of these neurons to discriminate among vocal sequences and among the behavioral contexts associated with sequences compared with a rate code alone. These findings demonstrate that the BLA contains multiple robust representations of vocal stimuli that can provide the basis for emotional/physiological responses to these stimuli.
Identifier
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<a href="http://doi.org/10.1152/jn.00953.2015" target="_blank" rel="noreferrer noopener">10.1152/jn.00953.2015</a>
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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).
*Discrimination (Psychology)
*Social Behavior
*Vocalization
2016
acoustic communication
Action Potentials
Amygdala/cytology/*physiology
Animal
Animals
bat
Chiroptera
College of Anatomy & Neurobiology
Department of Anatomy & Neurobiology
electrocardiogram
Eptesicus fuscus
Female
Gadziola Marie A
Heart Rate
Journal of neurophysiology
Male
NEOMED College of Medicine
Neurons/classification/*physiology
Shanbhag Sharad J
vocalizations
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/10.1152/jn.00422.2011" target="_blank" rel="noreferrer noopener">http://doi.org/10.1152/jn.00422.2011</a>
Pages
1047–1057
Issue
4
Volume
107
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
A novel coding mechanism for social vocalizations in the lateral amygdala.
Publisher
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Journal of neurophysiology
Date
A point or period of time associated with an event in the lifecycle of the resource
2012
2012-02
Subject
The topic of the resource
*Social Behavior; Acoustic Stimulation; Action Potentials/*physiology; Amygdala/*cytology/physiology; Animal/*physiology; Animals; Auditory Pathways/*physiology; Chiroptera; Dextrans/metabolism; Echolocation/physiology; Female; Male; Neurons/*physiology; Reaction Time/physiology; Rhodamines/metabolism; Time Factors; Vocalization
Creator
An entity primarily responsible for making the resource
Gadziola Marie A; Grimsley Jasmine M S; Shanbhag Sharad J; Wenstrup Jeffrey J
Description
An account of the resource
The amygdala plays a central role in evaluating the significance of acoustic signals and coordinating the appropriate behavioral responses. To understand how amygdalar responses modulate auditory processing and drive emotional expression, we assessed how neurons respond to and encode information that is carried within complex acoustic stimuli. We characterized responses of single neurons in the lateral nucleus of the amygdala to social vocalizations and synthetic acoustic stimuli in awake big brown bats. Neurons typically responded to most of the social vocalizations presented (mean = nine of 11 vocalizations) but differentially modulated both firing rate and response duration. Surprisingly, response duration provided substantially more information about vocalizations than did spike rate. In most neurons, variation in response duration depended, in part, on persistent excitatory discharge that extended beyond stimulus duration. Information in persistent firing duration was significantly greater than in spike rate, and the majority of neurons displayed more information in persistent firing, which was more likely to be observed in response to aggressive vocalizations (64%) than appeasement vocalizations (25%), suggesting that persistent firing may relate to the behavioral context of vocalizations. These findings suggest that the amygdala uses a novel coding strategy for discriminating among vocalizations and underscore the importance of persistent firing in the general functioning of the amygdala.
Identifier
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<a href="http://doi.org/10.1152/jn.00422.2011" target="_blank" rel="noreferrer noopener">10.1152/jn.00422.2011</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).
*Social Behavior
2012
Acoustic Stimulation
Action Potentials/*physiology
Amygdala/*cytology/physiology
Animal/*physiology
Animals
Auditory Pathways/*physiology
Chiroptera
College of Anatomy & Neurobiology
Department of Anatomy & Neurobiology
Dextrans/metabolism
Echolocation/physiology
Female
Gadziola Marie A
Grimsley Jasmine M S
Journal of neurophysiology
Male
NEOMED College of Medicine
Neurons/*physiology
Reaction Time/physiology
Rhodamines/metabolism
Shanbhag Sharad J
Time Factors
Vocalization
Wenstrup Jeffrey J