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Topic: Cochlear nucleus

	A Cochlear Nucleus Auditory Prosthesis Based on Microstimulation: National Institute of Neurological Disorders and ...
		Using speech processors custom designed for cochlear nucleus implants, deaf subjects have demonstrated substantial increases in auditory recognition test scores and usefulness of their devices for speech recognition as compared to their initial speech processors.
		Using non-human, non-deafened, mammals evaluate the effects of chronic microstimulation of the ventral cochlear nucleus with penetrating microstimulating electrodes.
		Prepare for microstimulation studies of the ventral cochlear nucleus of a deaf human based on the aforementioned animal and human cadaver studies.
	www.ninds.nih.gov /funding/research/npp/sow/CNAudPros97SOW.htm (1190 words)

	"+newstitle+" (Site not responding. Last check: 2007-10-15)
		The Cochlear Nucleus 24 Contour Advance features an enhanced Contour Electrode engineered to help preserve and protect the delicate structures of the cochlea during surgery and in the years ahead.
		Cochlear implants bypass damaged hair cells in the inner ear, providing useful hearing and improved communication to those who receive little or no benefit from hearing aids.
		Cochlear is a winner of the 2001 Medical Design Excellence Awards for its design of the Cochlear Nucleus® 24 Contour implant and the FDA Commissioner's Special Citation for the development and commercialization of the Cochlear Nucleus® 24 Multichannel Auditory Brainstem implant.
	www.audiologyonline.com /News/pf_displaynews.asp?id=998 (515 words)

	Auditory System: Anatomic Tour (Site not responding. Last check: 2007-10-15)
		The cochlear nucleus is a switchboard of sorts, distributing auditory information to several different areas in the auditory pathway.
		The Cochlear Nuclei are typically divided into three regions based on the morphology of the cells they contain and the structures with which they connect.
		While the auditory nerve connects almost exclusively to the ipsilateral cochlear nucleus, the cochlear nucleus divides its output into several different ascending tracts.
	serous.med.buffalo.edu /hearing/cochlear_nuclei.html (349 words)

	Octopus Cells of the Mammalian Ventral Cochlear Nucleus Sense the Rate of Depolarization -- Ferragamo and Oertel 87 ...
		Their axons exit the cochlear nucleus through the intermediate acoustic stria (IAS) in a fiber bundle that lies interposed between the deep layer of the dorsal cochlear nucleus and the restiform body.
		Neural encoding of single-formant stimuli in the ventral cochlear nucleus of the chinchilla.
		Ventral nucleus of the lateral lemniscus in guinea pigs: cytoarchitecture and inputs from the cochlear nucleus.
	jn.physiology.org /cgi/content/full/87/5/2262 (5247 words)

	IHR - Cochlear Nucleus
		The cochlear nucleus is the first processing station in the central auditory system and has been the site of numerous electrophysiological, pharmacological, and neuroanatomical studies.
		We have confirmed that such cells, which are characterised by onset responses to pure tones (Figure 1a), are sensitive to the voice pitch and other pitches by virtue of wide band frequency integration (Figure 1b) and coincidence detection across the auditory nerve inputs.
		The characteristics of this stellate cell group suggest that they may be ideal candidates for providing a vital inhibitory connection within the cochlear nucleus complex in addition to any role due to projection to higher levels of the auditory pathway.
	www.ihr.mrc.ac.uk /research/processing/neuro/CN_summary.php (281 words)

	coch
		As all hearing impaired individuals, cochlear recipients also struggle when they attempt to listen to competing conversations (for example in business meetings), in reverberating rooms (conference halls or restaurants) or when the speaker may be some distance away (for example, children in classrooms).
		Cochlear Americas announced today that the U.S. Food and Drug Administration (FDA) cleared the ESPrit (TM) 3G behind the ear (BTE) speech processor for sale in the U.S. The ESPrit 3G is a breakthrough in performance, comfort, convenience and design for cochlear implant recipients.
		Cochlear is a winner of the 2001 Medical Design Excellence Awards for its design of the Nucleus(R) 24 Contour(TM) cochlear implant and the FDA Commissioner's Special Citation for the development and commercialization of the Nucleus(R) 24 Multichannel Auditory Brainstem Implant.
	www.hearinglossweb.com /res/ci/coch.htm (2107 words)

	[No title]
		Abstract: Examined whether the ability of multichannel cochlear implant users to perceive spectral speech cues should be related to their ability to differentiate among stimulation to different electrodes in terms of the perception of the evoked pitch.
		Abstract: 42 postlingually deafened adult patients, 21 with a formant extraction version of the Nucleus cochlear implant (NCI) and 21 with the analog processing Ineraid cochlear implant (ICI), were evaluated on speech perception tests after using the implants for 3.5 yrs.
		Abstract: Assessed the sensitivity of 7 cochlear implant patients (aged 19-70 yrs) to temporal modulations and examined whether the performance of the 3 Subjects who were deafened prior to full development of auditory and speech skills was similar to that of the 4 postlingually deafened (PLD) Subjects.
	mambo.ucsc.edu /psl/cochlear_implants.txt (14614 words)

	Audiology Online: FDA Approves New Innovative Cochlear Implant System
		The Nucleus Freedom implant features the Contour Advance electrode, a self-curling electrode array that allows the electrodes to be placed close to the hearing nerve for targeted stimulation and increased power efficiency, while applying minimal pressure on the cochlear structures.
		Cochlear’s state-of-the-art technologies, based on extensive research and development at preeminent academic institutions, restore the ability to hear sound and understand speech—enhancing both learning capabilities and quality of life for those with severe to profound hearing loss.
		The Nucleus Freedom implant features the Contour Advance electrode, a self-curling array that allows the electrodes to be placed close to the hearing nerve for targeted stimulation and increased power efficiency, while applying minimal pressure on the cochlear structures.
	www.audiologyonline.com /News/displaynews.asp?id=1666 (1259 words)

	Nucleus® 24 ABI: Auditory Brainstem Implant* (Site not responding. Last check: 2007-10-15)
		The Nucleus® 24 Auditory Brainstem Implant (ABI) is designed to provide sound information to individuals with Neurofibromatosis Type 2 (NF2) who will become deaf after the removal of bilateral tumors from the auditory (hearing) nerves.
		This electrode array is placed on the surface of the cochlear nucleus in the brainstem, bypassing the inner ear and auditory nerve.
		Hearing aids and cochlear implants are not beneficial when parts of the auditory nerves have been removed.
	www.cochlear.com /373.asp (420 words)

	Auditory Brainstem Physiology Laboratory - Kresge Hearing Research Institute (Site not responding. Last check: 2007-10-15)
		The Role of Pathways to the Cochlear Nucleus that are Activated by the Opposite Ear.
		The influence of the trigeminal ganglion on cochlear nucleus neurons could greatly impact processing in higher auditory centers because a high percentage of information (acoustic and somatosensory) arriving at the CN is conveyed to higher auditory centers.
		Additional studies target the function of the cochlear nucleus commissural projection (Shore et al, 1992; 2003), and descending projections from the superior olivary complex and inferior colliculus (Shore et al, 1991, 1992; Shore and Moore, 1998).
	www.khri.med.umich.edu /research/shore_lab/research.shtml (1412 words)

	Hearing Aids - Cochlear Nucleus (Site not responding. Last check: 2007-10-15)
		Newly implanted cochlear implants sometimes have to be removed and the patient re-implanted.
		The cochlear nucleus is a switchboard of sorts, distributing auditory information to several different areas in the...
		HEARING implant company Cochlear is back on track to deliver 20 per cent earnings growth for the year head.
	www.hearingaidempire.com /links/cochlear-nucleus.html (780 words)

	Cholinergic Modulation of Stellate Cells in the Mammalian Ventral Cochlear Nucleus -- Fujino and Oertel 21 (18): 7372 ...
		Doucet JR, Ryugo DK (1997) Projections from the ventral cochlear nucleus to the dorsal cochlear nucleus in rats.
		Schofield BR, Cant NB (1997) Ventral nucleus of the lateral lemniscus in guinea pigs: cytoarchitecture and inputs from the cochlear nucleus.
		Shofner WP, Young ED (1985) Excitatory/inhibitory response types in the cochlear nucleus: relationships to discharge patterns and responses to electrical stimulation of the auditory nerve.
	www.jneurosci.org /cgi/content/full/21/18/7372 (7205 words)

	"+newstitle+" (Site not responding. Last check: 2007-10-15)
		Former Miss America Heather Whitestone McCallum, a recent Cochlear Nucleus® 24 Contour recipient and chair of the Graeme Clark Cochlear Scholarship Foundation, kicked off the day's events touring INNOVENTIONS at Epcot®, the ever-changing theme park of discovery at the Walt Disney World® Resort in Lake Buena Vista, FL, with the award winners and their families.
		Scholarships are awarded on the basis of academic achievement and a demonstrated commitment to the Cochlear ideals of leadership and humanity.
		Cochlear is a winner of the 2001 Medical Design Excellence Awards for its design of the Cochlear Nucleus® 24 Contour cochlear implant and the FDA Commissioner's Special Citation for the development and commercialization of the Cochlear Nucleus® 24 Multichannel Auditory Brainstem implant.
	www.speechpathology.com /News/pf_displaynews.asp?id=92 (496 words)

	publications (Site not responding. Last check: 2007-10-15)
		Francis, H.W., Scott, J.C. and Manis, P.B. Protein kinase C mediates potentiation of synaptic transmission by phorbol ester at parallel fibers in the dorsal cochlear nucleus.
		White, J.A., Young, E.D., and Manis, P.B. The electrotonic structure of regular spiking neurons in the ventral cochlear nucleus may determine their response properties.
		Manis, P.B. Membrane properties and discharge characteristics of guinea pig dorsal cochlear nucleus neurons studied in vitro.
	www.med.unc.edu /~pmanis/publicat.html (944 words)

	Auditory Brainstem Physiology Laboratory
		Schematic of connections from auditory brainstem nuclei to the cochlear nucleus (Shore et al., 1991).
		We have previously described a cochlear branch of trigeminal ganglion projections which modulates blood flow in the cochlea (Vass et al., 1995; 1997; 1998; 2000).
		The influence of the trigeminal ganglion on cochlear nucleus (CN) neurons could greatly impact processing in higher auditory centers because a high percentage of information (acoustic and somatosensory) arriving at the CN is conveyed to higher auditory centers.
	www.zainea.com /brainstem.htm (1490 words)

	CURRICULUM VITAE
		The acoustic response properties of identified pyramidal and cartwheel cells of the dorsal cochlear nucleus.
		Gdowski, G.T., Hancock, K.E., and Voigt, H.F. Intrinsic oscillations of units in the dorsal cochlear nucleus of barbiturate-anesthetized gerbil.
		Hancock, K.E. and Voigt, H.F. Intracellular response properties of fusiform cells in the dorsal cochlear nucleus of barbiturate-anesthetized Mongolian gerbils.
	epl.harvard.edu /~keh/CV.html (479 words)

	Cochlear: innovator of the Nucleus Freedom cochlear implant system
		David received his Nucleus implant 4 years ago.
		Kelin received her Nucleus implant at age 4.
		Nucleus Freedom with SmartSound offers a more natural, interactive hearing experience at work, home, school and play.
	www.cochlear.com (119 words)

	Modeling Neurons in the Anteroventral Cochlear Nucleus for Amplitude (ResearchIndex)
		Abstract: The aim of this work is to explore the representation of speech in the anteroventral cochlear nucleus by computational models based on neuroanatomical and neurophysiological data.
		A computational model of the anteroventral cochlear nucleus stellate cells with chop-S type response properties is described.
		Input that is excitatory and inhibitory to the model is in the form of simulated auditory-nerve spikes.
	citeseer.ist.psu.edu /678003.html (281 words)

	Lab 7. Recording from the Cochlear Nucleus
		The goal is to have each individual locate a cochlear nucleus unit and collect a FTC, response area, short tone at CF, rate curve (with and without randomization).
		The dura mater overlying the cerebellum is opened and the cerebellum' is aspirated to expose the region where the cochlear nucleus resides: just medial to the auditory nerve (which will not be visible).
		In recording from the cochlear nucleus could there be an effect of the contents of the electrode on the recording?
	www.neurophys.wisc.edu /neuro730/labs/lab7.html (1064 words)

	1999; Commissural projections of the cochlear nucleus in the Egyptian fruit bat (Rousettus aegyptiacus): A non-cochlear ... (Site not responding. Last check: 2007-10-15)
		Here we present evidence for a commissural projection from cochlear nucleus to cochlear nucleus in the Egyptian fruit bat (Rousettus aegyptiacus).
		After BDA injections into the cochlear nucleus, robust anterograde labeling was found in virtually all major subdivisions of the contralateral cochlear nucleus.
		However, given that commissural fibers arising from the cochlear nucleus in other mammalian species are thought to be inhibitory, the large "bulbs" found in the Egyptian fruit bat suggest a mechanism for rapid inhibition at the lowest possible level of binaural interaction.
	www.aro.org /archives/1999/581.html (250 words)

	1999; Ventral cochlear nucleus multipolar neurons that innervate the dorsal cochlear nucleus differ in their ...
		At least three classes of ventral cochlear nucleus (VCN) multipolar neurons in the rat can be defined based on their dendritic morphology, neurochemistry, and projections to the dorsal cochlear nucleus (DCN).
		Two of the classes (radiate and planar neurons) are found in the magnocellular core of the VCN whereas the third class (marginal neurons) is located in the small cell cap.
		In this study, we examined the axonal targets of these three classes outside the cochlear nucleus using a fluorescent double labeling protocol.
	www.aro.org /archives/1999/583.html (395 words)

	Physiological Identification of the Targets of Cartwheel Cells in the Dorsal Cochlear Nucleus -- Golding and Oertel 78 ...
		Parasagittal slices of the cochlear nuclei were cut from the brain stems of 18- to 26-day-old mice as described previously
		Late PSPs in responses to shocks of dorsal cochlear nucleus (DCN) in cartwheel, fusiform, and giant cells are at least in
		, D. Spontaneous and sound-evoked discharge characteristics of complex-spiking neurons in the dorsal cochlear nucleus of the unanesthetized decerebrate cat.
	jn.physiology.org /cgi/content/full/78/1/248 (6582 words)

	Nucleus Freedom with SmartSound
		Nucleus® Freedom cochlear implant system* is designed for exploring an entire world of sound, with a more natural, interactive experience at home, school, work and play.
		Nucleus Freedom means living, and hearing, the full potential of every day.
		SmartSound : Unique to Cochlear, SmartSound automatically identifies important sounds, allowing you to focus on the things you want to hear.
	www.cochlearamericas.com /Products/17.asp (224 words)

	Looking for something? (Site not responding. Last check: 2007-10-15)
		Whether you’re considering a cochlear implant for yourself or for your child, this is the beginning of an exciting journey.
		In this section, you’ll find practical tips compiled by other cochlear implant recipients, and resources to help you learn how to better hear the things that are important to you
		Cochlear Global Home Compliance Program Privacy Policy Terms and Conditions
	www.cochlearamericas.com /NewToCochlear/new_to_cochlear_index.asp (163 words)

	Cochlear Implants (CBM 95-2)
		cochlear implants in children with profound hearing impairments.
		chronically implanted microelectrodes in the cochlear nucleus of
		the multielectrode cochlear implant in the rehabilitation of 27
	www.nlm.nih.gov /archive/20040829/pubs/cbm/cochlear.html (7941 words)

	Dr. Voigt's CV
		Evidence for inhibitory interactions between neurons in the dorsal cochlear nucleus of the unanesthetized, decerebrate cat: a cross-correlation study of neural pairs recorded simultaneously using single microelectrodes.
		Davis,KA Voigt,HF Evidence of Stimulus-Dependent Correlated Activity in the Dorsal Cochlear Nucleus of Decerebrate Gerbils Journal of Neurophysiology 78 229-247 (1997).
		Ding,J Benson,TE Voigt,HF Physiology and Morphology of Neurons in Dorsal and Posteroventral Cochlear Nucleus of Unanesthetized, Decerebrate Gerbil (Meriones unguiculatus).
	www.bu.edu /eng/labs/anl/cv.html (3506 words)

	lab (Site not responding. Last check: 2007-10-15)
		We record from single units in the cochlear nucleus using multichannel electrodes developed by the center for neural communications which enable us to record from multiple units simultaneously.
		We use tract-tracing techniques to explore connections from other areas of the brain to the cochlear nucleus.
		Sources of extra-cochlear innervation arise predominantly in the superior olivary complex, inferior colliculus and contralateral cochlear nucleus (Shore et al, 1991; 1992).
	www.med.umich.edu /khri/800x600/research/shore_lab/research.htm (1375 words)

	Endbulb Synapses in the Anteroventral Cochlear Nucleus Express a Specific Subset of AMPA-Type Glutamate Receptor ...
		of the neurons in the anterior division of the anteroventral cochlear
		bushy cells in the anteroventral cochlear nucleus of the cat.
		Correlation of AMPA Receptor Subunit Composition with Synaptic Input in the Mammalian Cochlear Nuclei
	www.jneurosci.org /cgi/content/full/18/3/1148 (6223 words)

	Age-related reduction of [3H]strychnine binding sites in the cochlear nucleus of the Fischer 344 rat. (Site not responding. Last check: 2007-10-15)
		The present study used quantitative receptor autoradiography to examine the effects of aging on the binding profile of the strychnine-sensitive glycine receptor in the Fischer 344 rat.
		Glycine receptor binding sites were localized using [3H]strychnine in two principal subdivisions of the cochlear nucleus; the dorsal and anteroventral cochlear nucleus.
		In young rats, single concentrations of [3H]strychnine showed significantly higher binding levels in the dorsal cochlear nucleus than the anteroventral cochlear nucleus (+38%, P
	www.arclab.org /medlineupdates/abstract_7675197.html (124 words)

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