
	Where results make sense

Topic: Lateral inhibition

In the News (Sat 28 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Lateral Inhibition
		Lateral inhibition helps to explain a number of "optical illusions" and, more importantly, provides an excellent example of how the brain is organized to actively "make sense" of the information it gets, rather than to simply absorb and respond to it.
		A very interesting and important property of a lateral inhibition network (compare the output plots at the bottom of both figures) is that their outputs will be pretty much the same in the two cases.
		Lateral inhibition networks are operating as part of the "unconscious" brain, and largely without providing any information to the "conscious" part of the brain about what they are doing.
	serendip.brynmawr.edu /bb/latinhib.html (2044 words)

	LATERAL INHIBITION (Site not responding. Last check: 2007-11-01)
		Lateral inhibition refers to the inhibition that neighboring neurons in brain pathways have on each other.
		For example, in the visual system, neighboring pathways from the receptors to the optic nerve, which carries information to the visual areas of the brain, show lateral inhibition.
		The faint clouds appear because intersections have lateral inhibitions from white areas on 4 sides, whereas the middle of the bars have lateral inhibition from white areas on only 2 sides.
	www.indiana.edu /~p1013447/dictionary/lat_i.htm (613 words)

	Lateral Inhibition (Site not responding. Last check: 2007-11-01)
		What they found was that there are separate areas of the brain that respond maximally to a vertical line, for instance, but a different set would respond maximally to a horizontal line; every diagonal degree would also have a given set of detectors (within certain limits).
		In other words orientations that are next to (or lateral) to the activated detectors are sent signals that inhibit (prevent them) from firing (within 5 degrees of orientation).
		This inhibition causes the perceived orientation of the diagonal line to be increased passed the inhibited orientations, which in turn leads to an overestimation of the angle.
	www.csun.edu /~ata20315/lateral.htm (180 words)

	Cerebellar On-Beam and Lateral Inhibition: Two Functionally Distinct Circuits -- Cohen and Yarom 83 (4): 1932 -- ...
		The time constant of decay of the lateral inhibition was twice as long as the time constant of the on-beam inhibition.
		The buildup of the on-beam inhibition is quantitatively described in Fig.
		Note that a maximal contribution to the inhibition is reached no later than the 3rd pulse, indicating a rapid saturation of the process of facilitation.
	jn.physiology.org /cgi/content/full/83/4/1932 (5645 words)

	1999; Lateral inhibition in frequency tuning of bat central auditory neurons
		Using two-tone inhibition method, we studied the lateral inhibition in frequency tuning of neurons in the inferior colliculus (IC) and the auditory cortex (AC) of the big brown bat, Eptesicus fuscus.
		The degree of lateral inhibition increased with the intensity of inhibitory tone.
		Lateral inhibition only occurred within an effective temporal window within which the degree of lateral inhibition changed with the interval between the excitatory and inhibitory tones.
	www.aro.org /archives/1999/862.html (334 words)

	Delta-Notch-mediated lateral inhibition (Site not responding. Last check: 2007-11-01)
		It has been proposed that such patterns can be generated through lateral inhibition - a type of cell-cell interaction whereby a cell that adopts a particular fate inhibits its immediate neighbours from doing likewise.
		Lateral inhibition is well documented in flies, worms and vertebrates.
		However, it is not clear under precisely what conditions the Delta-Notch mechanism of lateral inhibition can generate the observed types of pattern, or indeed whether this mechanism is capable of generating such patterns by itself.
	www.dcs.shef.ac.uk /~nmonk/abstracts/delta.html (286 words)

	Action potential propagation in mitral cell lateral dendrites is decremental and controls recurrent and lateral ...
		Action potential propagation in mitral cell lateral dendrites is decremental and controls recurrent and lateral inhibition in the mammalian olfactory bulb -- Margrie et al.
		cranium 1 mm anterior to the rhinal fissure and 0.75 mm lateral
		Both recurrent and lateral inhibition are likely to depend on depolarization-evoked Ca influx into mitral cell lateral dendrites.
	www.pnas.org /cgi/content/full/98/1/319 (4501 words)

	Negative Correlation Through Lateral Inhibition
		In order to study the effect of lateral inhibition on noise reduction and correlation in neural systems, we developed a simple model and tested it on a stimulus tracking task.
		For each run, there are two simultaneous simulations: the test condition, which is a model with lateral inhibitory connections, and the control condition, which is the same model but without the lateral inhibitory connections.
		As we are interested in the effect of lateral connections on the correlation, it is desirable to remove this stimulus artefact, and so the correlation values with the stimulus trend removed are also presented; these may be considered the 'true' mean correlation values.
	www.sussex.ac.uk /Users/sjd23/lateral_inhibition.html (1413 words)

	Spike-Dependent GABA Inputs to Bipolar Cell Axon Terminals Contribute to Lateral Inhibition of Retinal Ganglion Cells ...
		A general feature of lateral inhibition in the salamander inner retina may be its dependence on action potentials.
		Bloomfield SA, and Xin D. Surround inhibition of mammalian AII amacrine cells is generated in the proximal retina.
		Lateral inhibition in the inner retina is important for spatial tuning of ganglion cells.
	jn.physiology.org /cgi/content/full/89/5/2449 (6463 words)

	Islam Online- News Section (Site not responding. Last check: 2007-11-01)
		Brain studies show that we exist in a world of constantly varying light variables that force the brain to perform what is called "lateral inhibition;" consequently, it provides us with a "steady" image as opposed to a "true" image of what we see.
		Furthermore, lateral inhibition networks operate as part of the "unconscious" brain; largely, without providing any information to the "conscious" part of the brain about what they are doing.
		Reasonably then, through "lateral inhibition," the brain automatically simplifies these images into the unconscious message that attractive hair and clothing are MEANT to attract.
	www.islam-online.net /english/Science/2000/5/article1.shtml (1219 words)

	Amazon.com: Sensory Neural Networks: Lateral Inhibition: Books: Bahram Nabet,Robert B. Pinter (Site not responding. Last check: 2007-11-01)
		Lateral inhibition is a mechanism of local neuronal interaction that produces significant global properties.
		It features biological bases of lateral inhibition models, computational properties of these models that stress their short term adaptive behavior, their relation to recent activity in neural networks and connectionist systems, their use for image processing applications, and their application to motion detection.
		Sensory Neural Networks: Lateral Inhibition is an interdisciplinary work that will prove useful to neural network theorists, biologists, circuit designers, and vision scientists.
	amazon.com /Sensory-Neural-Networks-Lateral-Inhibition/dp/0849342783 (658 words)

	Dendroarchitecture and Lateral Inhibition in Thalamic Barreloids -- Lavallée and Deschênes 24 (27): 6098 ...
		of the prevalence and magnitude of inhibition for a population
		Lee SM, Friedberg MH, Ebner FF (1994a) The role of GABA-mediated inhibition in the rat ventral posterior medial thalamus.
		Pinault D, Deschênes M (1998) Anatomical evidence for a mechanism of lateral inhibition in the rat thalamus.
	www.jneurosci.org /cgi/content/full/24/27/6098 (5438 words)

	Mechanisms of Lateral Inhibition in the Olfactory Bulb: Efficiency and Modulation of Spike-Evoked Calcium Influx into ...
		Jahr CE, Nicoll RA (1982) An intracellular analysis of dendrodendritic inhibition in the turtle in vitro olfactory bulb.
		Margrie TW, Sakmann B, Urban NN (2001) Action potential propagation in mitral cell lateral dendrites is decremental and controls recurrent and lateral inhibition in the mammalian olfactory bulb.
		Urban NN (2002) Lateral inhibition in the olfactory bulb and in olfaction.
	www.jneurosci.org /cgi/content/full/23/20/7551 (5693 words)

	Cogprints - Pre-integration lateral inhibition enhances unsupervised learning (Site not responding. Last check: 2007-11-01)
		A large and influential class of neural network architectures use post-integration lateral inhibition as a mechanism for competition.
		This form of competition, implemented through pre-integration lateral inhibition, does provide appropriate coding properties and can be used to efficiently learn such representations.
		We thus argue that pre-integration lateral inhibition has computational advantages over conventional neural network architectures while remaining equally biologically plausible.
	cogprints.org /2380 (148 words)

	schnittger lab - publications
		We show that the TRIPTYCHON gene that functions in lateral inhibition encodes a single-repeat MYB-related transcription factor that lacks a recognizable activation domain.
		Both genes are expressed in trichomes and act together during lateral inhibition.
		Thus, the same lateral inhibition mechanism seems to be involved in both de novo patterning and position-dependent cell determination.
	www2.mpiz-koeln.mpg.de /~schnitt/body_publications.htm (4386 words)

	Exploratorium: Science Snacks: Cardboard Tubes: Lateral Inhibition
		When you look through the tube that you made from a full sheet of paper, the spot of light is surrounded by the dark ring of the tube.
		The spot appears brighter because the receptors in the center of your retina are not inhibited by signals from the surrounding dark ring.
		When you look through this thinwalled tube, the spot appears darker because light comes through the wall of the tube, causing the receptors at the center of your retina to be inhibited.
	www.exploratorium.edu /snacks/cardboard_tube_IV.html (255 words)

	ARTIFICIAL INTELLIGENCE AND THE PRESERVATION OF MIND
		Minsky directed such a project at MIT which got bigger and bigger until there were so many programs which had been written by so many people -- and the system was so large -- that no one understood it.
		Later, Minsky wrote THE SOCIETY OF MIND in which he attempted to decompose the human mind into a "society" of independent "agents", none of which could be called intelligent.
		The output neuron with a pattern of weights most resembling the input pattern will fire most strongly -- and this neuron is made to inhibit the firing of neurons around it ("lateral inhibition").
	www.benbest.com /computer/ai.html (7170 words)

	Pre-Integration Lateral Inhibition Enhances Unsupervised Learning (ResearchIndex) (Site not responding. Last check: 2007-11-01)
		If your firewall is blocking outgoing connections to port 3125, you can use these links to download local copies.
		Abstract: A large and influential class of neural network architectures use post-integration lateral inhibition as a mechanism for competition.
		Exploring the Functional Significance of Dendritic Inhibition In..
	citeseer.ist.psu.edu /650089.html (216 words)

	Perceptual processing - Amplification - Edge enhancement - Lateral inhibition (Site not responding. Last check: 2007-11-01)
		Inhibitory connections ("wiring") among retinal neurons affect signals transmited further into the visual system.
		The connections are such that the more intense stripes cause more inhibition and therefore the appearance of the darker region on the darker appearing stripes.
		The connections are also such that the less intense stripes cause less inhibition and therefore the appearance of the brighter region on the brighter appearing stripes.
	dragon.uml.edu /psych/mach.html (143 words)

	Dr. Sebastian Seung, Lateral Inhibition and Excitation in Vision (Site not responding. Last check: 2007-11-01)
		The phenomenon of feature selectivity has long been observed in sensory neurons of the brain, but our understanding of its mechanisms is still incomplete.
		This lecture will discuss the classic work of Hartline and Ratliff on the role that lateral inhibition plays in shaping the response properties of photoreceptors in the Limulus retina.
		This will be followed by an account of competing theories for the generation of orientation selectivity in primary visual cortex.
	online.itp.ucsb.edu /online/neuro_w01/seung1 (200 words)

	Mark Johnson
		Spratling, M. and Johnson, M.H. Exploring the functional significance of dendritic inhibition in cortical pyramidal cells.
		Spratling, M and Johnson, M.H. Pre-integration lateral inhibition enhances unsupervised learning.
		Spratling, M. and Johnson, M.H. Dendritic inhibition enhances neural coding properties.
	www.cbcd.bbk.ac.uk /people/mark (1972 words)

	Lateral inhibition demo for a recurrent network (Site not responding. Last check: 2007-11-01)
		2.1.1 A demonstration of a network with recurrent lateral inhibition
		Below, you will see an interactive demonstration of a two-layer network with recurrent inhibition.
		Activations: Each unit's activation (shown numerically as well as by colour) is computed by adding up the incoming activation on each input line (including inputs from the same layer via recurrent connections) multiplied by the corresponding weight.
	www.psychology.mcmaster.ca /4i03/demos/recurrent-demo.html (377 words)

	Cogprints - Subject: Neural Nets (Site not responding. Last check: 2007-11-01)
		Spratling, M W and Johnson, M H (2003) Exploring the functional significance of dendritic inhibition in cortical pyramidal cells.
		Spratling, Michael (1999) Presynaptic lateral inhibition provides a better architecture for self-organising neural networks.
		Miikkulainen, Risto and Bednar, James A. and Choe, Yoonsuck and Sirosh, Joseph (1997) Self-Organization, Plasticity, and Low-level Visual Phenomena in a Laterally Connected Map Model of the Primary Visual Cortex, in Goldstone, R. and Schyns, P. and Medin, D., Eds.
	cogprints.org /view/subjects/comp-sci-neural-nets.html (5155 words)

	Selectively Grouping Neurons in Recurrent Networks of Lateral Inhibition. (Site not responding. Last check: 2007-11-01)
		Winner-take-all networks have been proposed to underlie many of the brain's fundamental computational abilities.
		can be realized by organizing lateral inhibition in linear threshold networks.
		Given a collection of potentially overlapping groups (with the exception of some degenerate cases), the lateral inhibition results in network dynamics such that
	www.ini.unizh.ch /~rich/papers/Xieetal2002b.html (265 words)

	Lateral Inhibition in Cortical Filters - Petkov, Lourens, Kruizinga (ResearchIndex) (Site not responding. Last check: 2007-11-01)
		Lateral Inhibition in Cortical Filters - Petkov, Lourens, Kruizinga (ResearchIndex)
		Petkov, T. Lourens and P. Kruizinga: "Lateral inhibition in cortical filters", Proc.
		@misc{ petkov93lateral, author = "N. Petkov and T. Lourens and P. Kruizinga", title = "Lateral inhibition in cortical filters", text = "N. Petkov, T. Lourens and P. Kruizinga: Lateral inhibition in cortical filters, Proc.
	citeseer.ist.psu.edu /96378.html (451 words)

	Green, Christopher D. (1998) Lateral Inhibition is a Good Example, Psycoloquy: 9,#29 Connectionist Explanation (26) (Site not responding. Last check: 2007-11-01)
		Green, Christopher D. (1998) Lateral Inhibition is a Good Example, Psycoloquy: 9,#29 Connectionist Explanation (26)
		Green, Christopher D.) Lateral Inhibition is a Good Example, Psycoloquy: 9,#29 Connectionist Explanation (26)
		Bridgeman's (1998) example of a class of networks that are grounded in the known neuroanatomy of the Limulus addresses many of the problems I raised quite nicely.
	psycprints.ecs.soton.ac.uk /archive/00000578 (722 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations (Site not responding. Last check: 2007-11-01)
		Energy Citations Database (ECD) Document #6745066 - Natural language processing using spreading activation and lateral inhibition
		Availability information may be found in the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or via the "Full-text Availability" link.
		Natural language processing using spreading activation and lateral inhibition
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=6745066 (100 words)

	Find in a Library: Sensory neural networks : lateral inhibition
		Find in a Library: Sensory neural networks : lateral inhibition
		To find this item in a library, enter a postal code, state, province, or country in the field above.
		WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries.
	worldcatlibraries.org /wcpa/ow/6b7c3f77c53a2d03a19afeb4da09e526.html (45 words)

	A Parametric Investigation of Multiplicative Lateral Inhibition Filtering in Image Processing (Site not responding. Last check: 2007-11-01)
		A Parametric Investigation of Multiplicative Lateral Inhibition Filtering in Image Processing
		4.3.1 Summary of Results from Multiplicative Lateral Inhibition
		4.4 Combination of Multiplicative Lateral Inhibition and Excitation
	homepage.mac.com /ajkenned/thesis (58 words)

	Brain & Behavior
		Tricks of the Eyes, Wisdom of the Brain: Does your brain throw things away?
		a lateral inhibition network experiment, with optical illusions, requires Java capable browser
		Simple Networks, Simple Rules: Learning and Creating Categories: Can simple things learn?
	serendip.brynmawr.edu /bb (747 words)

Try your search on: Qwika (all wikis)