scholarly journals Connections of the auditory brainstem in a Songbird,Taeniopygia guttata.I. Projections of nucleus angularis and nucleus laminaris to the auditory torus

2010 ◽  
Vol 518 (11) ◽  
pp. 2109-2134 ◽  
Author(s):  
Nils O.E. Krützfeldt ◽  
Priscilla Logerot ◽  
M. Fabiana Kubke ◽  
J. Martin Wild
Keyword(s):  
Auditory Brainstem ◽  
Nucleus Laminaris ◽  
Nucleus Angularis

scholarly journals Dipolar extracellular potentials generated by axonal projections

2017 ◽  
Author(s):  
Thomas McColgan ◽  
Ji Liu ◽  
Paula T Kuokkanen ◽  
Catherine E Carr ◽  
Hermann Wagner ◽  
...  
Keyword(s):  
Action Potentials ◽  
Brain Regions ◽  
Auditory Brainstem ◽  
Multielectrode Array ◽  
Field Potentials ◽  
Physiological Basis ◽  
Nucleus Laminaris ◽  
Axonal Projections ◽  
Terminal Zone ◽  
Source Of Information

AbstractExtracellular field potentials (EFPs) are an important source of information in neuroscience, but their physiological basis is in many cases still a matter of debate. Axonal sources are typically discounted in modeling and data analysis because their contributions are assumed to be negligible. Here, we show experimentally and theoretically that contributions of axons to EFPs can be significant. Modeling action potentials propagating along axons, we showed that EFPs were prominent in the presence of a terminal zone where axons branch and terminate in close succession, as found in many brain regions. Our models predicted a dipolar far field and a polarity reversal at the center of the terminal zone. We confirmed these predictions using EFPs from the barn owl auditory brainstem where we recorded in nucleus laminaris using a multielectrode array. These results demonstrate that axonal terminal zones produce EFPs with considerable amplitude and spatial reach.

scholarly journals Astrocyte-secreted factors modulate the developmental distribution of inhibitory synapses in nucleus laminaris of the avian auditory brainstem

2012 ◽  
Vol 520 (6) ◽  
pp. 1262-1277 ◽  
Author(s):  
Matthew J. Korn ◽  
Scott J. Koppel ◽  
Lan H. Li ◽  
Divya Mehta ◽  
Sonia B. Mehta ◽  
...  
Keyword(s):  
Auditory Brainstem ◽  
Inhibitory Synapses ◽  
Nucleus Laminaris ◽  
Secreted Factors

scholarly journals Auditory Brainstem Response Wave III is Correlated with Extracellular Field Potentials from Nucleus Laminaris of the Barn Owl

2018 ◽  
Vol 104 (5) ◽  
pp. 874-877
Author(s):  
Paula T. Kuokkanen ◽  
Anna Kraemer ◽  
Richard Kempter ◽  
Christine Köppl ◽  
Catherine E. Carr
Keyword(s):  
Auditory Brainstem Response ◽  
Barn Owl ◽  
Auditory Brainstem ◽  
Field Potentials ◽  
Nucleus Laminaris ◽  
Brainstem Response

scholarly journals Dipolar extracellular potentials generated by axonal projections

eLife ◽  
2017 ◽  
Vol 6 ◽  
Author(s):  
Thomas McColgan ◽  
Ji Liu ◽  
Paula Tuulia Kuokkanen ◽  
Catherine Emily Carr ◽  
Hermann Wagner ◽  
...  
Keyword(s):  
Action Potentials ◽  
Brain Regions ◽  
Auditory Brainstem ◽  
Multielectrode Array ◽  
Field Potentials ◽  
Physiological Basis ◽  
Nucleus Laminaris ◽  
Axonal Projections ◽  
Terminal Zone ◽  
Source Of Information

Extracellular field potentials (EFPs) are an important source of information in neuroscience, but their physiological basis is in many cases still a matter of debate. Axonal sources are typically discounted in modeling and data analysis because their contributions are assumed to be negligible. Here, we established experimentally and theoretically that contributions of axons to EFPs can be significant. Modeling action potentials propagating along axons, we showed that EFPs were prominent in the presence of terminal zones where axons branch and terminate in close succession, as found in many brain regions. Our models predicted a dipolar far field and a polarity reversal at the center of the terminal zone. We confirmed these predictions using EFPs from the barn owl auditory brainstem where we recorded in nucleus laminaris using a multielectrode array. These results demonstrate that axonal terminal zones can produce EFPs with considerable amplitude and spatial reach.

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