
	Where results make sense

Topic: Perceptual

In the News (Thu 31 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Untitled
		Parallels between perceptual and conceptual processes suggest that many mechanisms typically associated with abstract thought are also present in perception, and that perceptual processes provide useful mechanisms that may be coopted by abstract thought.
		Perceptual properties are often good indicators of important, category-defining properties, and our perceptual systems may have evolved so that they would establish useful categories (Medin and Ortony, 1989).
		These perceptual aspects are "deep" in the sense that they permit widespread causal inferences between highly dissimilar objects and are the result of general physical laws.
	cognitrn.psych.indiana.edu /rgoldsto/barsalou/barsalou.html (12420 words)

	PERCEPTUAL LEARNING
		Perceptual Learning students have superior learning skills and may not strictly be of superior intellect.
		The Institute of Perceptual Learning is not in the business of teaching young children maths and reading for the sake of marvelling at them reading and understand maths.
		The Institute of Perceptual Learning is offering a three-month 100% money back guarantee because we are confident that during that three-month period, parents are able to assess the benefit the child receives from the program.
	www.perceptuallearning.com /pfaq.php (2194 words)

	PERCEPTUAL SYMBOL SYSTEMS
		Rather than extracting a subset of a perceptual state and storing it for later use as a symbol, an amodal symbol system transduces a subset of a perceptual state into a completely new representation language that is inherently non-perceptual.
		This basic premise of modern perceptual theory underlies the present theory of perceptual symbol systems: A perceptual symbol is a record of the neural activation that arises during perception.
		Like a perceptual symbol, a linguistic symbol is a schematic memory of a perceived event, where the perceived event is a spoken or a written word.
	www.bbsonline.org /documents/a/00/00/04/29/bbs00000429-00/bbs.barsalou.html (19811 words)

	Barsalou 1999: Perceptual symbol systems
		Perceptual symbols are records of the neural states that underlie perception.
		Perceptual symbol systems can be productive because they are made of constituent percept parts that can be re-combined.
		Because perceptual symbol systems have the same potential to implement propositions, they too are propositional systems." Looking at his examples, you can see why.
	www.cc.gatech.edu /~jimmyd/summaries/barsalou1999.html (1219 words)

	Mapping the Spectrum onto Perceptual Color Space (Site not responding. Last check: 2007-10-10)
		The visual perceptual system is thus mapping a high--dimensional input, the distribution of energy values of the photons arriving at every point on the retina, onto a low--dimensional output where each point in the visual scene is assigned one color.
		Although the left half of each blue rectangle seems to remain the same perceptual color, actually the right half of the rectangle in (A) contains the same distribution of energy quanta photons as does the left half of the blue rectangle in (B).
		As one reduces the illumination provided by the light, at some point the reflected spectrum from the uncovered half of the rectangle will match that which had formerly been transmitted through the filter under the bright illumination.
	kiptron.psyc.virginia.edu /steve_boker/colorvision2/node11.html (578 words)

	Perceptual Control Theory
		Perceptual signals at levels above the bottom one are controlled by manipulating the reference signals of control systems at the next lower level.
		The retrieved perceptual signal is routed to the lower-level system's reference input and the perceptual signal of the lower-level system is routed upward to higher levels via a collateral.
		The perceptual signal from the lower-level system is routed upward via the collateral, where it not only enters higher-level perceptual input functions but also gets recorded in memory.
	users.ipfw.edu /abbott/pct/pct.html (2297 words)

	Junqing Chen's Homepage
		The role of the perceptual model is to control the amount of distortion introduced at the quantization stage, so that it is either invisible (perceptually lossless) or so that its visibility is minimized (perceptually lossy).
		As we saw in the previous section, the perceptual coders use models of the HVS to determine the visibility of the distortions at the quantization stage.
		The perceptual model is used to weigh the different components of the error signal according to the HVS sensitivity in order to produce an output image that represents perceptual error.
	commnet.ece.northwestern.edu /~jqchen/research.html (1527 words)

	Illusions and Ambiguous Figures
		Perceptual illusions and ambiguous figures were of special interest to the Gestaltists.
		Perceptual illusions and ambiguous figures are of special interest in the investigation of thinking because:
		For the Gestaltist, this suggested that the mind was "actively" involved in interpreting the perceptual input rather than passively recording the input.
	www.rci.rutgers.edu /~cfs/305_html/Gestalt/Illusions.html (162 words)

	Austin on Inference in Perceptual Judgments
		And that is exactly the feature of an exercise of a perceptual ability which makes it distinct from an inference: its reliability outstrips any set of inferences which hopes to "emulate" or "replicate" the whole set of perceptual judgments which are exercises of that perceptual ability.
		To be sure, sometimes what makes a perceptual judgment "go wrong" may be analogous to the corresponding flaw in an inference: a background belief may have been false, or some of the crucial "cues" may have been obscured, or sometimes one may have been incautious or hasty.
		And since the reliability of the perceptual judgment may outstrip that of any inference suggested as its "replication," examining a "replication" may not be an accurate way of evaluating the credibility of the perceptual judgment.
	www.lawrence.edu /fast/BOARDMAW/Infer_Percep_Aus.html (2152 words)

	The Representation of Color Metrics and Mappings in Perceptual Color Space (Site not responding. Last check: 2007-10-10)
		Color is not a physical property of objects, it is a perceptual representation of the distribution of photon energy quanta within a reflectance or emission spectrum produced by an object.
		Perceptual color space refers to the representational framework in which our perceptions of color relate to one another.
		An argument is presented that perceptual color space needs to be represented in at least four dimensions in order to accurately capture and discriminate the distributions of photon energy quanta present in real world objects.
	kiptron.psyc.virginia.edu /steve_boker/ColorVision2/ColorVision2.html (260 words)

	Workshop on Perceptual Organization in Computer Vision
		This correlation between salience and invariance has suggested that the perceptual salience of viewpoint invariants is due to the leverage they provide for inferring 3-D properties of objects and scenes.
		We then show that generally, the perceptually salient viewpoint invariant properties are {\em minimal}, in the sense that they can be derived using less image information than non-salient properties.
		Perceptual rules allow the extraction of a representative population of non accidental junctions from an image, from which a probability density for the non accidental occurrence of deviations is computed.
	marathon.csee.usf.edu /~sarkar/pocv99.html (1940 words)

	Amazon.com: Perceptual Distortion: Music (Site not responding. Last check: 2007-10-10)
		'Perceptual Distortion' is an intense, rich and lyrical album that explores and questions how we look at the world, how we relate to others and how we perceive our own place the schemes of things.
		Perceptual Distortion is one of those rare albums that takes time to appreciate.
		Lyrically and vocally, the songs are almost nakedly passionate, their protagonists struggling to maintain a sense of hope in a world gone awry, where war, hunger, and disillusion are the order of the day.
	www.amazon.com /exec/obidos/tg/detail/-/B00006WS7E?v=glance (1054 words)

	Perceptual Audio Coders: Tutorial CD-ROM On Coding Artifacts (Site not responding. Last check: 2007-10-10)
		Perceptual audio coding is a relatively new field and exhibits completely different types of artifacts.
		"Perceptual Audio Coders: What to Listen For" will be especially helpful to audio professionals, including engineers, designers, and students who are presented with audio material that has undergone audio compression, in which the process of coding artifacts takes place.
		"Perceptual Audio Coders: What to Listen For," is available for purchase at special introductory prices of $20.00 for nonmembers, $15.00 for members, $15.00 for student nonmembers, and $10.00 for student members.
	www.aes.org /publications/AudioCoding.cfm (428 words)

	A Broad Perceptual Model of
		On a broad perceptual model of introspection, there is a merely contingent causal connection between our introspective judgments and the occurrent thoughts that are their targets.
		The problem is that on a naturalistically appealing broad perceptual model of introspection, PIJs are neither infallible nor indubitable nor incorrigible.
		Privileged introspective judgments are utterly immune to subjective irrationality; and this is so even on a broad perceptual model of introspection where PIJs are not immune to either error or compelling counter-evidence.
	www.siue.edu /~wlarkin/research/authority.html (2058 words)

	Perceptual Motion
		For me it refers to things that move in a way that may not be obvious at first, but that make sense once one understands the physics involved.
		Mostly, Perceptual Motion is an opportunity for me to share the joy I find in playing with relatively obscure toys and games that involve skill and challenge.
		Perceptual Motion started in 1981 when I began making and selling devil sticks and diabolos at the Pike Place Market in Seattle.
	www.toddstrong.com (348 words)

	Technical Papers: Perceptual Mapping
		This paper uses data from a proprietary Hughes survey to demonstrate the principles which underlie current practices in perceptual mapping using discriminant analysis-based maps.
		The paper discusses the advantages of using discriminant analysis in creating perceptual maps, criteria for selecting brands and products for respondents to evaluate, and principles for optimizing a perceptual space.
		Examines the similarities and differences between an individual-level perceptual map and conjoint analysis.
	www.populus.com /techpapers/map.php (214 words)

	www.myspace.com/perceptualchaos
		Perceptual Chaos is a message oriented experimental electronic music project; the message is aesthetically blended with musical vibes drawing from drum'n'bass in particular with a twist of Jazz, macerated in Downtempo and cooked with Cubase for a couple of weeks
		The project is still in its infancy as Perceptual Chaos is a full-time student and doesn't get much time to produce.
		Perceptual Chaos consists of one producer called Tim who is a physics (photonics) student from the University of Auckland, Aotearoa (NZ).
	www.myspace.com /perceptualchaos (747 words)

	Perceptual Coding (Site not responding. Last check: 2007-10-10)
		Perceptual coding can be accomplished by a variety of means, but it usually involves using models of human perception, such as a human auditory system or human visual system model.
		One approach is to transform the raw data using the perceptual model into features deemed important for perception.
		Another approach is to incorporate the perceptual knowledge into the measures of distortion and fidelity used to design the codes.
	users.ece.gatech.edu /~vkm/nii/node59.html (328 words)

	Cogprints - Interactions Between Perceptual and Conceptual Learning (Site not responding. Last check: 2007-10-10)
		Whereas the concepts that we learn are certainly influenced by our perceptual representations, we will argue that these perceptual representations are also influenced by the learned concepts.
		In fact, the most straightforward account of our experimental results is that concept learning can produce changes in perceptual representations, the 'vocabulary' of perceptual features, that are used by subsequent tasks.
		This chapter reviews theoretical and empirical evidence that perceptual vocabularies used to describe visual objects are flexibly adapted to the demands of their user.
	cogprints.org /908 (318 words)

	Science & Technology at Scientific American.com: None So Blind -- Perceptual-blindness experiments challenge the ... (Site not responding. Last check: 2007-10-10)
		Memory, in this model, is simply rewinding the tape and playing it back in the theater of the mind, in which some cortical commander watches the show and reports to a higher homunculus what it saw.
		The perceptual system and the brain that analyzes its data are far more complex.
		I may be perceptually blind, but not all scientists will be, and out of this fact arises the possibility of new percepts and paradigms.
	www.sciam.com /article.cfm?articleID=000A011D-C17F-101E-B40D83414B7F0000 (692 words)

	Perceptual Learning and Abstraction in Machine Learning (Site not responding. Last check: 2007-10-10)
		On the one hand, Perceptual Learning is more and more studied in neurobiology and is now considered as an essential part of any living system.
		In the Abstraction framework, Perceptual Learning can be seen as a specific process that learns how to transform the data before the traditional learning task itself takes place.
		In this paper, we argue that biologically-inspired Perceptual Learning mechanisms could be used to build efficient low-level Abstraction operators that deal with real world data.
	csdl2.computer.org /persagen/DLAbsToc.jsp?resourcePath=/dl/proceedings/&toc=comp/proceedings/icci/2003/1986/00/1986toc.xml&DOI=10.1109/COGINF.2003.1225946 (213 words)

	Amazon.com: Perceptual: Music (Site not responding. Last check: 2007-10-10)
		But what makes Louisiana-born Brian Blade special is that he is more of a colorist than a showman, a drummer who, like Billy Higgins, prefers to set moods that go with the grooves.
		Perceptual is his second outing with the Fellowship ensemble and is a satisfying follow-up to the band's Blue Note debut.
		Perceptual is Blade's second venture as drummer/bandleader but you wouldn't know that Brian wasn't playing every instrument because he and fellow band members blend so well, fuse so tightly, that it all flows out as simply "one" breathtaking, emotional sound.
	www.amazon.com /exec/obidos/tg/detail/-/B00004RCAG?v=glance (1147 words)

	Is the Mapping onto Perceptual Color Space Continuous? (Site not responding. Last check: 2007-10-10)
		If a continuous mapping between the space of photic stimuli and perceptual color space is to be defined, it will be necessary to remove the one--to--many relationship implied by the current formulations of the space of photic stimuli.
		The requirement remains for a re--representation of the space of photic stimuli in order remove the one--to--many relation to perceptual color space before a continuous mapping of visual stimuli onto perceptual representation can be defined.
		While this does remove one potential source of one--to--many relationships within the mapping (while ignoring others), it does not address the fundamental question of the nature of the mapping in a rich photic environment such as we are confronted with on a day to day basis.
	www.nd.edu /~sboker/ColorVision2/node13.html (554 words)

	Citations: Self-organization in a perceptual network - Linsker (ResearchIndex) (Site not responding. Last check: 2007-10-10)
		An alternative view introduced by Plumbley and Fallside [19] is to try to minimize the loss in information about some original signal as the sensory input is processed by the perceptual system or neural network.
		The type of network which optimizes information transmission depends considerably on the noise sources assumed to be present in the system.
		An alternative view introduced by Plumbley and Fallside [7] is to try to minimize the loss in information about some original signal Omega as the sensory input is processed by the perceptual system or neural network.
	citeseer.ist.psu.edu /context/17480/0 (2503 words)

	Philosophical Dictionary: Pascal-Phenomenon
		Thus, for example, the apparent discontinuity between the portions of a spoon in and out of a glass of water is a visual illusion caused by the different indices of refraction of water and air.
		Representationalists commonly try to account for such cases by appeal to the distinction between primary and secondary qualities, but skeptics and idealists use perceptual illusion to raise more general doubts about the reliability of sensory knowledge.
		Taken together with basic principles of empiricism, this entails that what we usually describe as physical objects have no reality apart from our individual, private perceptual experiences of them.
	www.philosophypages.com /dy/p2.htm (1242 words)

	Perceptual Bias (Site not responding. Last check: 2007-10-10)
		Similar perceptual devices are used in all the expressive arts from literature to architecture.
		The distinction between the perceptual representation of an object, and the actual, substantive, nature of that object is in itself a concept with dualistic aspects.
		We will also use psychology, neurology, and ethology to recognize what perceptual biases are inherent to the human species, and evaluate their influence in the acceptance of Dualistic beliefs, the “subjective subtraction theory of truth”.
	www.iserv.net /~merriman/percept.htm (8011 words)

	PDA External Home Page (Site not responding. Last check: 2007-10-10)
		The PARC Perceptual Document Analysis Area is focused on extracting visual structure in document images in support of targeted applications mixing formal and informal, scanned and electronic documents.
		The Perceptual Documents Area's goal is to develop unobtrusive applications enabling people to select, assemble, modify, and share material in documents conveniently in terms of perceptually and semantically salient chunks.
		PDA's technology base is scientifically rooted in the discipline of Perceptual Organization, which crosses the fields of human and machine vision.
	www2.parc.com /spl/groups/pda (261 words)

	Perceptual Science Lab
		Welcome to the Perceptual Science Laboratory at the University of California - Santa Cruz.
		The Perceptual Science Laboratory is engaged in a variety of experimental and theoretical inquiries in perception and cognition.
		A major research area concerns speech perception by ear and eye, and facial animation.
	mambo.ucsc.edu (86 words)

	Perceptual Collaboration in Neem (Site not responding. Last check: 2007-10-10)
		The Neem Platform is a research test bed for Project Neem, concerned with the development of socially and culturally aware collaborative systems in a wide range of domains.
		In contrast, Perceptual Interfaces have been traditionally employed to handle explicit (multimodal) commands from users, and are as a rule not concerned with the communication that takes place among humans.
		The Neem Platform is a generic (application neutral) component-based evolvable framework that provides functionality that facilitates building such perceptual collaborative applications.
	csdl2.computer.org /persagen/DLAbsToc.jsp?resourcePath=/dl/proceedings/&toc=comp/proceedings/icmi/2002/1834/00/1834toc.xml&DOI=10.1109/ICMI.2002.1166963 (208 words)

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