scholarly journals Temporary hearing loss influences post-stimulus time histogram and single neuron action potential estimates from human compound action potentials

2008 ◽  
Vol 123 (4) ◽  
pp. 2200-2212 ◽  
Author(s):  
Jeffery T. Lichtenhan ◽  
Mark E. Chertoff
Keyword(s):  
Hearing Loss ◽  
Action Potential ◽  
Action Potentials ◽  
Single Neuron ◽  
Compound Action Potentials ◽  
Single Neuron Action ◽  
Stimulus Time ◽  
Compound Action

scholarly journals Compound Action Potentials Evoked by Speech Stimuli in Sensory Hearing Loss.

1996 ◽  
Vol 39 (3) ◽  
pp. 204-208
Author(s):  
Shogo Shinohara ◽  
Kazuhiko Shoji ◽  
Hisayoshi Kojima ◽  
Koji Miyata ◽  
Iwao Honjo
Keyword(s):  
Hearing Loss ◽  
Action Potentials ◽  
Speech Stimuli ◽  
Compound Action Potentials ◽  
Compound Action

Hearing Preservation in Acoustic Neuroma Surgery: Value of Monitoring Cochlear Nerve Action Potentials

1994 ◽  
Vol 111 (6) ◽  
pp. 703-709 ◽  
Author(s):  
Julian M. Nedzelski ◽  
Charlotte M. Chiong ◽  
Marlene Z. Cashman ◽  
Susan G. Stanton ◽  
David W. Rowed
Keyword(s):  
Action Potential ◽  
Action Potentials ◽  
Compound Action Potential ◽  
Complete Removal ◽  
Hearing Preservation ◽  
Threshold Shift ◽  
Speech Discrimination ◽  
Significant Difference ◽  
Compound Action Potentials ◽  
Compound Action

This study reviews the hearing results in 80 consecutive patients who underwent complete removal of histologically proven acoustic neuromas by use of the suboccipital approach. Of these, 56 patients had successful monitoring of cochlear compound action potentials; 20 were not monitored because their surgery predated monitoring; and 4 had unsuccessful monitoring. A significant difference was found in hearing preservation rates between the group in whom compound action potential monitoring was performed and those in whom monitoring was either unavailable or failed ( p = 0.02). Overall, 38% (30 of 80) had preserved hearing. There were 51 patients in whom the click threshold for the cochlear compound action potential was measured during surgery. Twenty-one patients had a threshold shift of 20 dB or less, 15 (71%) of these retained serviceable hearing (speech reception threshold ≤50 dB; speech discrimination score ≥60%). Of 12 patients in whom the threshold shift was 30 to 60 dB, none had serviceable hearing after surgery. The click threshold shift was predictive of a significant postoperative hearing change ( p < 0.001).

Stretch of mammalian nerve in vitro: Effect on compound action potentials

2000 ◽  
Vol 5 (4) ◽  
pp. 227-235 ◽  
Author(s):  
Sidney Ochs ◽  
Rahman Pourmand ◽  
Kenan Si ◽  
Richard N. Friedman
Keyword(s):  
Action Potentials ◽  
Compound Action Potentials ◽  
Vitro Effect ◽  
Mammalian Nerve ◽  
Compound Action

scholarly journals Site of cochlear stimulation and its effect on electrically evoked compound action potentials using the MED-EL standard electrode array

2009 ◽  
Vol 8 (1) ◽  
pp. 40 ◽  
Author(s):  
Stefan Brill ◽  
Joachim Müller ◽  
Rudolf Hagen ◽  
Alexander Möltner ◽  
Steffi-Johanna Brockmeier ◽  
...  
Keyword(s):  
Action Potentials ◽  
Electrode Array ◽  
Compound Action Potentials ◽  
Compound Action

Using Evoked Compound Action Potentials to Assess Activation of Electrodes and Predict C-Levels in the Tempo+ Cochlear Implant Speech Processor

2010 ◽  
Vol 31 (1) ◽  
pp. 134-145 ◽  
Author(s):  
Isaac Alvarez ◽  
Angel de la Torre ◽  
Manuel Sainz ◽  
Cristina Roldán ◽  
Hansjoerg Schoesser ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Action Potentials ◽  
Speech Processor ◽  
Compound Action Potentials ◽  
Compound Action

Synaptic transmission in the chronically decentralized middle cervical and stellate ganglia of the dog

1983 ◽  
Vol 61 (10) ◽  
pp. 1149-1155 ◽  
Author(s):  
J. A. Armour
Keyword(s):  
Central Nervous System ◽  
Action Potentials ◽  
Autonomic Nerves ◽  
Autonomic Ganglia ◽  
Afferent Nerves ◽  
Stellate Ganglia ◽  
Compound Action Potentials ◽  
The Central Nervous System ◽  
Compound Action ◽  
Stimulation Of

Afferent stimulation of one thoracic cardiopulmonary nerve generated compound action potentials in the efferent axons of other ipsilateral cardiopulmonary nerves in dogs, 14 days after their thoracic autonomic ganglia had been decentralized. The compound action potentials were influenced by the frequency of activation and (in 5 of 12 dogs) by pharmacological autonomic blocking agents (hexamethonium, atropine, phentolamine, and propranolol). Moreover, they were abolished transiently when chymotrypsin was injected locally into the ganglia, and extendedly when manganese was injected. Thus, synapses that can be activated by stimulation of afferent nerves exist in chronically decentralized thoracic autonomic nerves and ganglia. It is proposed that regulation of the heart and lungs occurs in part via thoracic autonomic neural elements independent of the central nervous system.

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