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.heares.2007.06.009" target="_blank" rel="noreferrer noopener">http://doi.org/10.1016/j.heares.2007.06.009</a>
Pages
67–77
Issue
1
Volume
232
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
Projections from auditory cortex contact ascending pathways that originate in the superior olive and inferior colliculus.
Publisher
An entity responsible for making the resource available
Hearing research
Date
A point or period of time associated with an event in the lifecycle of the resource
2007
2007-10
Subject
The topic of the resource
Animals; Auditory Cortex/*cytology; Auditory Pathways/*cytology; Fluorescence; Guinea Pigs; Inferior Colliculi/*cytology; Microscopy; Olivary Nucleus/*cytology; Staining and Labeling/methods
Creator
An entity primarily responsible for making the resource
Peterson Diana Coomes; Schofield Brett R
Description
An account of the resource
The superior olivary complex (SOC) and inferior colliculus (IC) are targets of cortical projections as well as sources of major ascending auditory pathways. This study examines whether the cortical projections contact cells in the SOC or IC that project to higher levels. First, we placed an anterograde tracer into the auditory cortex to label cortico-olivary axons and a retrograde tracer into the IC to label olivocollicular cells in guinea pigs. Cortical axons contacted many labeled cells in the ipsilateral SOC and fewer labeled cells in the contralateral SOC. Contacted cells projected to the ipsilateral or contralateral IC. In a second experiment, we labeled corticocollicular axons with an anterograde tracer and injected retrograde tracers into the medial geniculate (MG) to label colliculogeniculate cells. In the IC ipsilateral to the cortical injection, many cortical axons contacted colliculogeniculate cells in the dorsal cortex and external cortex of the IC. The contacted cells projected to the ipsilateral MG or, less often, to the contralateral MG. The results indicate that cortical projections are likely to contact cells in the SOC and IC that project to higher centers. This suggests that auditory cortex can modulate the ascending auditory pathways at multiple levels of the brainstem.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1016/j.heares.2007.06.009" target="_blank" rel="noreferrer noopener">10.1016/j.heares.2007.06.009</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).
2007
Animals
Auditory Cortex/*cytology
Auditory Pathways/*cytology
Department of Anatomy & Neurobiology
Fluorescence
Guinea Pigs
Hearing research
Inferior Colliculi/*cytology
Microscopy
NEOMED College of Medicine
Olivary Nucleus/*cytology
Peterson Diana Coomes
Schofield Brett R
Staining and Labeling/methods
-
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/10.1007/s10162-005-0025-4" target="_blank" rel="noreferrer noopener">http://doi.org/10.1007/s10162-005-0025-4</a>
Pages
95–109
Issue
2
Volume
7
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
Cells in auditory cortex that project to the cochlear nucleus in guinea pigs.
Publisher
An entity responsible for making the resource available
Journal of the Association for Research in Otolaryngology : JARO
Date
A point or period of time associated with an event in the lifecycle of the resource
2006
2006-06
Subject
The topic of the resource
Animals; Auditory Cortex/*cytology; Cochlear Nucleus/*cytology; Fluorescent Dyes; Guinea Pigs; Pyramidal Cells/*cytology
Creator
An entity primarily responsible for making the resource
Schofield Brett R; Coomes Diana L; Schofield Ryan M
Description
An account of the resource
Fluorescent retrograde tracers were used to identify the cells in auditory cortex that project directly to the cochlear nucleus (CN). Following injection of a tracer into the CN, cells were labeled bilaterally in primary auditory cortex and the dorsocaudal auditory field as well as several surrounding fields. On both sides, the cells were limited to layer V. The size of labeled cell bodies varied considerably, suggesting that different cell types may project to the CN. Cells ranging from small to medium in size were present bilaterally, whereas the largest cells were labeled only ipsilaterally. In optimal cases, the extent of dendritic labeling was sufficient to identify the morphologic class. Many cells had an apical dendrite that could be traced to a terminal tuft in layer I. Such "tufted" pyramidal cells were identified both ipsilateral and contralateral to the injected CN. The results suggest that the direct pathway from auditory cortex to the cochlear nucleus is substantial and is likely to play a role in modulating the way the cochlear nucleus processes acoustic stimuli.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1007/s10162-005-0025-4" target="_blank" rel="noreferrer noopener">10.1007/s10162-005-0025-4</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).
2006
Animals
Auditory Cortex/*cytology
Cochlear Nucleus/*cytology
Coomes Diana L
Department of Anatomy & Neurobiology
Fluorescent Dyes
Guinea Pigs
Journal of the Association for Research in Otolaryngology : JARO
NEOMED College of Medicine
Pyramidal Cells/*cytology
Schofield Brett R
Schofield Ryan M