scholarly journals A circuit for detection of interaural time differences in the nucleus laminaris of turtles

2017 ◽  
Vol 220 (22) ◽  
pp. 4270-4281 ◽  
Author(s):  
Katie L. Willis ◽  
Catherine E. Carr
Keyword(s):  
Interaural Time Differences ◽  
Nucleus Laminaris

scholarly journals Maps of interaural delay in the owl's nucleus laminaris

2015 ◽  
Vol 114 (3) ◽  
pp. 1862-1873 ◽  
Author(s):  
Catherine E. Carr ◽  
Sahil Shah ◽  
Thomas McColgan ◽  
Go Ashida ◽  
Paula T. Kuokkanen ◽  
...  
Keyword(s):  
Conduction Velocity ◽  
Delay Line ◽  
Field Potential ◽  
Barn Owl ◽  
Conduction Delay ◽  
Interaural Time Differences ◽  
Nucleus Laminaris ◽  
Nucleus Magnocellularis

Axons from the nucleus magnocellularis form a presynaptic map of interaural time differences (ITDs) in the nucleus laminaris (NL). These inputs generate a field potential that varies systematically with recording position and can be used to measure the map of ITDs. In the barn owl, the representation of best ITD shifts with mediolateral position in NL, so as to form continuous, smoothly overlapping maps of ITD with iso-ITD contours that are not parallel to the NL border. Frontal space (0°) is, however, represented throughout and thus overrepresented with respect to the periphery. Measurements of presynaptic conduction delay, combined with a model of delay line conduction velocity, reveal that conduction delays can account for the mediolateral shifts in the map of ITD.

scholarly journals Population Coding of Interaural Time Differences in Gerbils and Barn Owls

2010 ◽  
Vol 30 (35) ◽  
pp. 11696-11702 ◽  
Author(s):  
N. A. Lesica ◽  
A. Lingner ◽  
B. Grothe
Keyword(s):  
Population Coding ◽  
Interaural Time Differences ◽  
Barn Owls
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