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Topic: Inferior colliculus

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	Inferior colliculus - Wikipedia, the free encyclopedia
		The inferior colliculus lies caudal to its counterpart - the superior colliculus - above the trochlear nerve, and at the base of the projection of the medial geniculate nucleus (MGN) and the lateral geniculate nucleus (LGN).
		The inferior colliculus is the principal midbrain nucleus of the auditory pathway and receives input from several more peripheral brainstem nuclei in the auditory pathway, as well as inputs from the auditory cortex.
		The inferior colliculus is the first place where vertically orienting data from the fusiform cells in the dorsal cochlear nucleus can finally synapse with horizontally orienting data.
	en.wikipedia.org /wiki/Inferior_colliculus (488 words)

	Neurological Exam: Midbrain: Anatomy (Site not responding. Last check: 2007-10-14)
		Above the central canal, the tectum is composed of inferior and superior colliculi; below are the paired cerebral peduncles composed of the tegmentum (continuous with the tegmentum of the pons), substantia nigra, and crus cerebri.
		At the level of the inferior colliculus, lying ventrally in the central gray, is the trochlear nucleus.
		Associated with the superior colliculus level is the oculomotor nerve, serving the a) inferior oblique, medial, superior, and inferior rectus muscles and b) the parasympathetic fibers to the iris and ciliary muscles.
	isc.temple.edu /neuroanatomy/lab/lesions/24.htm (367 words)

	The auditory brainstem nuclei and some of their projections to the inferior colliculus in the North American opossum.
		Afferent projections to the inferior colliculus in the North American opossum have been examined using the retrograde transport of horseradish peroxidase.
		Bilateral projections to the inferior colliculus originate within the dorsal column nuclei, the nucleus reticularis gigantocellularis pars ventralis, the lateral and medial superior olivary nuclei, the dorsal nucleus of the lateral lemniscus and the auditory cortex.
		Anterograde axonal degeneration and transport techniques revealed that the inferior colliculus is innervated differentially by the dorsal and ventral cochlear nucleus, the superior olivary complex and the auditory neocortex.
	www.arclab.org /medlineupdates/abstract_6664491.html (288 words)

	inferior colliculi (inferior colliculus)
		Auditory projections to the inferior colliculus of the rat are present by birth.
		Age-related decrease in GABAB receptor binding in the Fischer 344 rat inferior colliculus.
		Age-related decrease of GABAA receptor subunits and glutamic acid decarboxylase in the rat inferior colliculus.
	www.arclab.org /node_pages/99.html (607 words)

	Medical Neurosciences
		The caudal two bumps are the inferior colliculi and together they (inferior and superior colliculi) comprise the TECTUM or roof of the midbrain.
		In contrast to the inferior colliculus, which is an AUDITORY structure, the superior colliculus is usually described as a VISUAL reflex center.
		This reflex would involve a projection from the retinae to the superficial layers of the RIGHT superior colliculus (retinocollicular), a short pathway from cells in the superficial layers to cells in the intermediate and deep layers and then the long CROSSED tectospinal axons to the LEFT side of the cervical spinal cord.
	www.neuroanatomy.wisc.edu /virtualbrain/BrainStem/23Colliculus.html (527 words)

	Superior colliculus - Wikipedia, the free encyclopedia
		It comprises the rostral aspect of the midbrain, posterior to the periaqueductal gray and adjacent superior the inferior colliculus.
		In humans, the superior colliculus (SC) is involved in the generation of saccadic eye movements and eye-head coordination.
		Afferents to the SC originate in the cerebral cortex, inferior colliculus, retina, basal ganglia, and spinal cord.
	en.wikipedia.org /wiki/Superior_colliculus (500 words)

	The Superior Colliculus (Site not responding. Last check: 2007-10-14)
		The superior colliculus in the mammalian mid-brain is responsible for the control of goal directed orientation responses towards novel sensory stimuli.
		On anatomical grounds the SC is divisible in to seven alternating cell and fibre layers from dorsal to ventral.
		The deep layers of the mammalian superior colliculus (DSC) are responsible for the generation of appropriate orientation responses of the eyes, head, pinnae and whiskers towards novel sensory stimuli.
	www.ucl.ac.uk /~smgxt01/scdef.htm (346 words)

	Single-Unit Responses in the Inferior Colliculus of Decerebrate Cats I. Classification Based on Frequency Response Maps ...
		Adams, J. Multipolar cells in the ventral cochlear nucleus project to the dorsal cochlear nucleus and the inferior colliculus.
		Oliver, D. Projections to the inferior colliculus from the anteroventral cochlear nucleus in the cat: possible substrates for binaural interaction.
		Zook, J. and Casseday, J. Convergence of ascending pathways at the inferior colliculus of the mustache bat, Pteronotus parnelli.
	jn.physiology.org /cgi/content/full/82/1/152 (7541 words)

	Douglas Oliver Neuroscience Laboratory
		Laminar inputs from dorsal cochlear nucleus and ventral cochlear nucleus to the central nucleus of the inferior colliculus: Two patterns of convergence.
		Organization of Binaural Excitatory and Inhibitory Inputs to the Inferior Colliculus from the Superior Olive.
		Synaptic modification in neurons of the central nucleus of the inferior colliculus.
	doliver.uchc.edu (335 words)

	Is there a morphine store in the brain of the camel?
		We had observed that, unlike in most mammals, the superior colliculus of the camel is much larger than the inferior colliculus, another similar nervous centre lying alongside it.
		It is known that the superior colliculus is concerned with visual reflexes and head, neck and eye movements, of obvious importance to this animal with large eyes, head and neck, and apparent good vision.
		The superior colliculus is composed of layers of alternating grey matter (largely composed of neuronal cell bodies) and white matter (containing mainly nerve fibres) (Figure 6).
	www.enhg.org /resources/articles/morphine/laurence.htm (1278 words)

	The Inferior Colliculus (Site not responding. Last check: 2007-10-14)
		As in the measurements of blood flow, baseline uptake of deoxyglucose is highest in the inferior colliculus.
		Processing of acoustic stimuli in the inferior colliculus plays a key role in representation of space, and this involves moment to moment damping of some signals to enhance focus on sounds of greater importance.
		Variability in which of the brainstem nuclei of high metabolic rate are damaged is likely due to a variety of protective biofeedback mechanisms, and the most active inferior colliculus may have priority over areas with lesser metabolic demands.
	www.conradsimon.org /InferiorColliculus.shtml (2620 words)

	Inferior colliculus (Site not responding. Last check: 2007-10-14)
		Mass of gray matter in the dorsal region of the caudal midbrain.
		Together with the superior colliculus, it provides the landmark four bumps on the posterior midbrain.
		In cross-section, it is distinguished from the superior colliculus by an internal capsule-like nucleus.
	homepages.nyu.edu /~obernt01/sciencepage/neuroanat/infcolliculus.html (49 words)

	"Information resources on bats"
		A microiontophoretic study of acetylcholine effects in the inferior colliculus of horseshoe bats: Implications for a modulatory role.
		Neurons in the inferior colliculus, auditory cortex and pontine nuclei of the FM bat, Eptesicus fucus respond to pulse repetition rate differently.
		Frequency and space representation in the inferior colliculus of the FM bat, Eptesicus fuscus.
	www.nal.usda.gov /awic/pubs/bats/auditory.htm (3766 words)

	[No title]
		A. The inferior colliculus is enveloped by fibers of the lateral leminiscus.
		E. The inferior olive is the major source of mossy fibers to the cerebellum.
		E. It is excitatory to contralateral flexors and inhibitory to contralateral extensors and is responsible for the swing phase of locomotion.
	web.indstate.edu /thcme/anderson/mcbrnstm.html (3339 words)

	Publications of Tom Yin
		Litovsky, R.Y. and Yin, T.C.T. (1998) Physiological studies of the precedence effect in the inferior colliculus of the cat: I. Correlates of psychophysics.
		Hedreen, J. and Yin, T.C.T. Homotopic and heterotopic callosal afferents of caudal inferior parietal lobule in Macaca mulatta.
		Tollin, D.J., Populin, L.C. and Yin, T.C.T. Neural correlates of the precedence effect and echo threshold in the inferior colliculus of the behaving cat.
	www.neurophys.wisc.edu /yin/yinpubs.html (2282 words)

	Medical Dictionary: Inferior colliculus - WrongDiagnosis.com
		Inferior colliculus: an essential auditory center in the midbrain
		Inferior colliculus : rounded elevation on the dorsal surface of the midbrain, on either side of the median plane in the caudal part of the tectum, and containing the nucleus of the inferior colliculus; part of the auditory system.
		The following list attempts to classify Inferior colliculus into categories where each line is subset of the next.
	www.wrongdiagnosis.com /medical/inferior_colliculus.htm (243 words)

	Douglas L. Oliver Faculty Member at the UConn Health Center Graduate School
		Previously, we have identified neurons in the inferior colliculus by their morphology, neurotransmitter content, axonal targeting, and most recently by their different firing patterns.
		Loftus WC, Bishop DC, Saint Marie RL, Oliver DL (2004) Segregation of binaural excitatory and inhibitory inputs to the inferior colliculus from the superior olive.
		Ota Y, Oliver DL, Dolan DF (2003) Frequency specific effects on cochlear responses during activation of the inferior colliculus in the guinea pig.
	grad.uchc.edu /phdfaculty/oliver.html (798 words)

	Publisher description for Library of Congress control number 2004049192
		Connecting the auditory brain stem to sensory, motor, and limbic systems, the inferior colliculus is a critical midbrain station for auditory processing.
		Winer and Schreiner's The Inferior Colliculus, a critical, comprehensive reference, presents the current knowledge of the inferior colliculus from a variety of perspectives, including anatomical, physiological, developmental, neurochemical, biophysical, neuroethological and clinical vantage points.
		Written by leading researchers in the field, the book is an ideal introduction to the inferior colliculus and central auditory processing for clinicians, otolaryngologists, graduate and postgraduate research workers in the auditory and other sensory-motor systems.
	www.loc.gov /catdir/enhancements/fy0662/2004049192-d.html (149 words)

	Postoperative hearing loss due to venous congestion at the inferior colliculus, or cochlear dysfunction? -- KOFLER and ...
		Postoperative hearing loss due to venous congestion at the inferior colliculus, or cochlear dysfunction?
		inferior colliculus after dissection of the pontotrigeminal vein,
		Contralateral hearing loss as an effect of venous congestion at the ipsilateral inferior colliculus after microvascular decompression: report of a case.
	jnnp.bmjjournals.com /cgi/content/full/71/1/135 (635 words)

	Profile
		The inferior colliculus is the mid brain center where information from lower auditory centers is integrated.
		We examine the nature of the information that ascends in the brain stem pathways and how this information is integrated at the inferior colliculus of echolocating bats.
		Because much of the input to the inferior colliculus is inhibitory, a major goal of this research is to investigate the role of inhibitory mechanisms in shaping neural responses to sound, specifically, to the temporal and spectral features of sound.
	myprofile.cos.com /casseday3 (1816 words)

	BIOGRAPHICAL SKETCH – MARK L
		calbindin D-28k and parvalbumin in the superior colliculus of adult and newborn cat and rhesus monkey.
		in the inferior colliculus of the rat after unilateral cochlear ablation.
		colliculus of the rat: Projection from the dorsal nucleus of the lateral lemniscus.
	csm.jmu.edu /biology/gabrieml/cv.html (389 words)

	Anatomy Atlases: Atlas of Microscopic Anatomy: Section 1 - Cells
		Superior colliculus: Laminated cellular mass in the tecturn of the mesencephalon.
		Bundle of nerve fibers from the lateral lemniscus and the inferior colliculus to the medial geniculate body.
		Receives auditory fibers from the inferior quadrigeminal brachiurn (brachiurn of inferior colliculus).
	www.anatomyatlases.org /MicroscopicAnatomy/Section17/Plate17340.shtml (539 words)

	B.3 Spectral and Temporal Representations in the Inferior Colliculus
		B.3 Spectral and Temporal Representations in the Inferior Colliculus
		The inferior colliculus (IC) receives input from a host of nuclei including the CN, the SOC, and the nuclei of the lateral lemniscus (NLL).
		The stimuli used in these experiments are some of the same stimuli to be used in Thrust area III for the studies of human performance in multisource environments.
	www.isr.umd.edu /CAAR/proposal/1/node8.html (485 words)

	Profile
		Portfors CV, Wenstrup JJ, Delay-tuned neurons in the inferior colliculus of the mustached bat: implications for analyses of target distance, Journal of Neurophysiology, 82(3), 1326-38, September 1999
		Mittmann D H, Wenstrup J J, Combination-sensitive neurons in the inferior colliculus.
		Wenstrup J J, Larue D T, Winer J A, Projections of physiologically defined subdivisions of the inferior colliculus in the mustached bat: targets in the medial geniculate body and extrathalamic nuclei.
	myprofile.cos.com /wenstrup1 (932 words)

	A Monotonic Code for Sound Azimuth in Primate Inferior Colliculus -- Groh et al. 15 (8): 1217 -- The Journal of ...
		A Monotonic Code for Sound Azimuth in Primate Inferior Colliculus -- Groh et al.
		the inferior colliculi of three awake monkeys (Macaca mulatta).
		Key Words: Inferior colliculus • acoustic • auditor • sound localization • sound location • rate code • place code • map • monkey • primate
	jocn.mitpress.org /cgi/content/abstract/15/8/1217 (303 words)

	1999; Projections from the inferior colliculus to the cochlear nuclei and the contralateral inferior colliculus in ...
		1999; Projections from the inferior colliculus to the cochlear nuclei and the contralateral inferior colliculus in guinea pigs
		Projections from the inferior colliculus to the cochlear nuclei and the contralateral inferior colliculus in guinea pigs
		Following injections of different tracers into each cochlear nucleus, retrogradely labeled cells were present throughout the inferior colliculus (i.e., in the central nucleus as well as in the dorsal and external cortices) on both sides.
	www.aro.org /archives/1999/884.html (362 words)

	The ability of inferior colliculus neurons to signal differences in interaural delay -- Skottun et al. 98 (24): 14050 ...
		The ability of inferior colliculus neurons to signal differences in interaural delay -- Skottun et al.
		53 cells in the inferior colliculus in guinea pigs.
		neurons in the inferior colliculus (IC) of guinea pigs.
	www.pnas.org /cgi/content/full/98/24/14050 (3692 words)

	D.1 Investigating Multiscale Analysis in the Auditory Cortex and Inferior Colliculus (Site not responding. Last check: 2007-10-14)
		D.1 Investigating Multiscale Analysis in the Auditory Cortex and Inferior Colliculus
		We have described earlier how the multiscale spectro-temporal representations of the auditory cortex provide for the analysis and extraction of perceptually significant features, and how these might in turn prove useful in a variety of applications involving detection and recognition of acoustic signals (Thrust areas I(A), II, V(B)).
		What remains unknown, however, is: (1) to what extent can linearity and separability be used to account for the representation of all dynamic spectra such as speech?
	www.isr.umd.edu /CAAR/proposal/1/node14.html (418 words)

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