scholarly journals Inferior colliculus of the house mouse. I. A quantitative study of tonotopic organization, frequency representation, and tone-threshold distribution

1985 ◽  
Vol 238 (1) ◽  
pp. 65-76 ◽  
Author(s):  
Imme Stiebler ◽  
G�nter Ehret
Keyword(s):  
Inferior Colliculus ◽  
Quantitative Study ◽  
House Mouse ◽  
Tonotopic Organization ◽  
Frequency Representation ◽  
Threshold Distribution

Inferior colliculus. II. Development of tuning characteristics and tonotopic organization in central nucleus of the neonatal cat

1975 ◽  
Vol 38 (5) ◽  
pp. 1208-1216 ◽  
Author(s):  
L. M. Aitkin ◽  
D. R. Moore
Keyword(s):  
Inferior Colliculus ◽  
Tuning Curve ◽  
External Auditory Meatus ◽  
Auditory Pathway ◽  
Central Nucleus ◽  
Synaptic Density ◽  
Tonotopic Organization ◽  
Tuning Curves ◽  
Sharp Form ◽  
Cochlear Development

Tuning curves were measured for 65 units in the inferior colliculus of seven anesthetized kittens aged from 6 to 28 days. At 2 days of age the inferior colliculus was divisible into central, pericentral, and external nuclei. Evidence was found for broader tuning curves to occur in the pericentral nucleus compared with the central nucleus, as has been observed in the adult. The middle ear was filled with serous fluid to 6 days, while the external auditory meatus remained collapsed until 10 days. Central nucleus tuning curves in kittens were relatively flat with high thresholds. Best-frequency thresholds diminished from a mean of near 100 dB SPL at 6-11 days to near 50 dB in the adult. The marked drop in thresholds between days 22 and 21 led to the adoption of the sharp form of tuning curve common for adults. Tonotopic organization of the central nucleus was clear at day 11. Speculations were advanced about the dependence of central auditory maturations on cochlear development, axon myelination in the auditory pathway, and changes in synaptic density as a function of age.

Observations on Tonotopic Organization within the Rat Inferior Colliculus Using 2-Deoxy-D[1-3H] Glucose

1982 ◽  
Vol 90 (6) ◽  
pp. 795-800 ◽  
Author(s):  
James R. Coleman ◽  
Maurice Campbell ◽  
William J. Clerici
Keyword(s):  
Inferior Colliculus ◽  
Pure Tone ◽  
Central Nucleus ◽  
Banding Patterns ◽  
Tonotopic Organization ◽  
Marking Technique

Tonotopic organization is a major feature of central auditory structures. The tritiated 2-deoxyglucose metabolic marking technique is demonstrated to be useful for visualizing isofrequency contours in the rat inferior colliculus. Following pure-tone stimulation, the central nucleus of the inferior colliculus shows discrete, prominent banding patterns and a well-organized tonotopic arrangement.

scholarly journals Inferior colliculus of the house mouse

1985 ◽  
Vol 156 (5) ◽  
pp. 637-644 ◽  
Author(s):  
G�nter Ehret ◽  
Anne J. M. Moffat
Keyword(s):  
Inferior Colliculus ◽  
House Mouse

Tonotopic organization of the auditory cortex: pitch versus frequency representation

Science ◽  
1989 ◽  
Vol 246 (4929) ◽  
pp. 486-488 ◽  
Author(s):  
C Pantev ◽  
M Hoke ◽  
B Lutkenhoner ◽  
K Lehnertz
Keyword(s):  
Auditory Cortex ◽  
Tonotopic Organization ◽  
Frequency Representation
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