1
40
2
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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.brainres.2005.03.023" target="_blank" rel="noreferrer noopener">http://doi.org/10.1016/j.brainres.2005.03.023</a>
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
164-174
Issue
1
Volume
1045
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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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Is humanlike cytoarchitectural asymmetry present in another species with complex social vocalization? A stereologic analysis of mustached bat auditory cortex
Publisher
An entity responsible for making the resource available
Brain Research
Date
A point or period of time associated with an event in the lifecycle of the resource
2005
2005-05
Subject
The topic of the resource
asymmetry; cerebral-cortex; combination-sensitive neurons; DSCF; hemispheric-specialization; human-brain; japanese macaques; lateralization; mustached bat; neural; Neurosciences & Neurology; planum temporale; pteronotus-parnellii; rhesus-monkeys; social vocalization; stereology; temporal speech region; V1
Creator
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Sherwood C C; Raghanti M A; Wenstrup J J
Description
An account of the resource
Considerable evidence suggests that left hemispheric lateralization for language comprehension in humans is associated with cortical microstructural asymmetries. However, despite the fact that left hemispheric dominance for the analysis of species-specific social vocalizations has been reported in several other species, little is known concerning microstructural asymmetries in auditory cortex of nonhumans. To test whether such neuroanatomical lateralization characterizes another species with complex social vocalizations, we performed stereologic analyses of Nissl-stained cells in layer III of area DSCF in mustached bats (Pteronotus parnellii). Area DSCF was selected because it contains neurons which are sensitive to several temporal features of conspecific vocalizations. Primary visual cortex (V I) was also studied as a comparative reference. We measured neuron densities, glial densities, and neuronal volumes in both hemispheres of 10 adult male bats. Results indicate that these variables are not significantly lateralized in area DSCF or V I. Additionally, magnopyramidal cells (i.e., the largest 10% of neurons from both hemispheres) were not asymmetric in their frequency of distribution at the population level. Although several individual bats had asymmetric neuron distributions, consistent hemispheric bias was not evident. Absence of population-level microstructural asymmetry in area DSCF of mustached bats suggests alternative evolutionary scenarios including: (1) microstructural lateralization of auditory cortical circuitry may be a unique adaptation for human language, and (2) the specialized biosonar function of mustached bat auditory cortex may require symmetrical cytoarchitectural structure. Resolution of these alternatives will require further data on the microstructure of auditory cortex in species with lateralized perception of acoustic social communication. (C) 2005 Elsevier B.V. All rights reserved.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1016/j.brainres.2005.03.023" target="_blank" rel="noreferrer noopener">10.1016/j.brainres.2005.03.023</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2005
asymmetry
Brain research
cerebral-cortex
combination-sensitive neurons
DSCF
hemispheric-specialization
human-brain
japanese macaques
Journal Article
lateralization
mustached bat
neural
Neurosciences & Neurology
planum temporale
pteronotus-parnellii
Raghanti M A
rhesus-monkeys
Sherwood C C
social vocalization
Stereology
temporal speech region
V1
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/10.1097/opx.0000000000000441" target="_blank" rel="noreferrer noopener">http://doi.org/10.1097/opx.0000000000000441</a>
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
107-114
Issue
1
Volume
92
Search for Full-text
Locate full-text within NEOMED Library's e-journal collections
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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
Effect of Artificial Scotomas on Open-Loop Disparity Vergence Eye Movements
Publisher
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Optometry and Vision Science
Date
A point or period of time associated with an event in the lifecycle of the resource
2015
2015-01
Subject
The topic of the resource
binocular disparity; convergence; depth-perception; disparity; dynamic asymmetries; eye movements; fusional; neurons; nystagmus; ocular motor control; Ophthalmology; responses; saccades; single-unit activity; V1; vergence; version
Creator
An entity primarily responsible for making the resource
Yang D S; Hertle R W; Zhu M X; Tai Z; Hald E; Kauffman M
Description
An account of the resource
Purpose. To investigate the effect of an artificial scotoma on open-loop disparity vergence responses (DVRs) and vergence control mechanisms, we examined open-loop DVRs to disparity stimuli using monocular artificial scotomas in normal subjects. Methods. Using a mirror haploscope with two computer monitors, we delivered disparity stimuli on a pair of random dot patterns subtending 40 by 30 degrees at 47 cm from each eye. The scotomas were black circles located in the center of a random dot pattern for the left eye. Eye movements of both eyes were recorded with a magnetic search coil system. Results. We first found that the amplitudes of DVRs were gradually decreased and the latency of DVRs was moderately increased as the size of the scotomas was increased. Second, monocular responses from each eye were symmetrical although the stimuli to each eye were asymmetrical. Conclusions. The results suggest that the monocular eye movements in disparity vergence are controlled by a binocular central mechanism, not driven separately by monocular inputs in the open-loop window.
Identifier
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<a href="http://doi.org/10.1097/opx.0000000000000441" target="_blank" rel="noreferrer noopener">10.1097/opx.0000000000000441</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2015
binocular disparity
Convergence
depth-perception
Disparity
dynamic asymmetries
Eye Movements
fusional
Hald E
Hertle R W
Journal Article
Kauffman M
Neurons
Nystagmus
ocular motor control
Ophthalmology
Optometry and Vision Science
responses
saccades
single-unit activity
Tai Z
V1
vergence
version
Yang D S
Zhu M X