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Enter the e-mail address you used when enrolling for Britannica Premium Service and we will e-mail your password to you. ____________________ * Encyclopædia Britannica + senses CREATE MY senses NEW ARTICLE * SUGGEST EDIT * ARTICLE HISTORY * ADD TO YOUR SITE * COMMENT * + + + + Science & Technology : : senses Table of Contents: []MainMainYear in Review LinksYear in Review LinksExternal Web sitesExternal Web sitesCitations * Main * Year in Review Links * External Web sites * Citations * Media * Article History * Contributors * Related Articles * Additional Content * Web Sites * Widgets & Gadgets * Dictionary * VIDEO * The way cats play can affect their behaviour. [Acquired from Vast Video] The way cats play can affect their behaviour.[Credits : Acquired from Vast Video] * Both wild and domestic horses rely on their senses. [Acquired from Vast Video] Both wild and domestic horses rely on their senses.[Credits : Acquired from Vast Video] * CONCEPTS * PEOPLE * PLACES * THINGS * Jacobson’s organ (zoology) * alarm pheromone * antifeedant (biochemistry) * attractant (biology) * baroreception (physiology) * binocular vision (sense) * bone conduction (physiology) * brain (anatomy) * carotid body (neurology) * chemoreception (physiology) * common chemical sense (biology) * cutaneous sense (physiology) * echolocation * electroreception * eyespot (biology) * feeding stimulant (chemistry) * flavour (sensation) * human ear (anatomy) * human eye (anatomy) * human sensory reception * kinesthesis (sensory phenomenon) * living things * mechanoreception (sensory reception) * nociception (biology) * odour * olfactory epithelium (anatomy) * pain * paradoxical cold and heat (biology) * perception * pheromone (biochemistry) * photoreception (biology) * photosynthesis (biology) * proprioception (biology) * psychophysics * repellent * scent mark (zoology) * sensation * sense organ (anatomy) * smell (sense) * sound reception * swim bladder (fish anatomy) * tactile hair (biology) * taste (sense) * taste bud (anatomy) * thermoreception (physiology) * thermoregulation (physiology) * touch (sense) * touch reception (biology) * vision (physiology) * visual acuity (physiology) * C.I. Lewis (American philosopher and logician) * David Hunter Hubel (American biologist) * Donald Redfield Griffin (American biophysicist) * Johannes Peter Müller (German physiologist) * MAGAZINES * SOURCES * CLASSICS * EBOOKS * Be Sense-ible! Jack &Jill, January 2007 * A Sense of Urgency. School Administrator, August 2009 * Horse sense Contest Winner! Cobblestone, November 2007 * THE SENSE OF WONDER. Horse &Rider, November 2007 * MAPPING LONDON: MAKING SENSE OF THE CITY. Architectural Review, April 2008 ____________________ ____________________ No results found. _________________________________________________________________ Type a word or double click on any word to see a definition from the Merriam-Webster Online Dictionary. Type a word or double click on any word to see a definition from the Merriam-Webster Online Dictionary. IFRAME: /bps/chitika-ad?width=300&height=70&id=encyclopedia+-+tools+window&query=senses Main Aspects of the topic senses are discussed in the following places at Britannica. Assorted References * general characteristics (in life (biology): Sensory capabilities and awareness) Although any given organism is severely limited in its range of behaviour patterns and sensory capabilities, life as a whole is remarkably sensitive to aspects of its local social and physical environment. A bird raised from the egg in the absence of other members of its species migrates when the season beckons, builds the proper nest, and engages in elaborate courtship rituals. Those birds... * human (in sensory reception, human) * information processing (in information processing: Elements of information processing) Humans receive information with their senses: sounds through hearing; images and text through sight; shape, temperature, and affection through touch; and odours through smell. To interpret the signals received from the senses, humans have developed and learned complex systems of languages consisting of “alphabets” of symbols and stimuli and the associated rules of usage. This has... animals (in animal (biology): The senses) Appropriate behaviour relies on receiving adequate information from the environment to alert an animal to the presence of food, mates, or danger. Although sensory nerves carry this information to the brain, they do not always directly perceive the external world. Other modified cells intervene to convert light waves into vision, pressure... * animal behaviour (in animal behaviour: Sensory-motor mechanisms) At this level of analysis, questions concern the physiological machinery underlying an animal’s behaviour. Behaviour is explained in terms of the firings of the neural circuits between reception of the stimuli (sensory input) and movements of the muscles (motor output). Consider, for example, a worker honeybee (Apis mellifera) flying... * arachnids (in arachnid (arthropod): Nervous system and sense organs) There are commonly three types of sense organs: tactile hairs called trichobothria, simple eyes (ocelli), and slit (lyriform) sense organs. Specialized structures, possibly serving as tactile organs or detectors of air movements, include malleoli (racket organs) of sunspiders and... + mites and ticks (in acarid (arachnid): External features) There are many different types of sensory receptors, most of which are setal. The setae, of many shapes and sizes, may be hollow chemoreceptors or solid, tactile structures. Other specialized setae, known as trichobothria, pseudostigmatic organs, eupathidia, or famuli, occur only in the Acariformes. A sensory pit called Haller’s organ contains sensory setae and is found on the tarsal segment of... + scorpions (in scorpion (arachnid): Internal features) Scorpions perceive the world through visual, tactile, and chemical sense organs. Their eyes cannot form sharp images, but their central eyes are among the most sensitive to light in the animal kingdom. Evidently they can navigate at night by using shadows cast by starlight. Lateral eyes (ocelli) sense only changes in light intensity and are... + spiders (in spider (arachnid): Nervous system and senses) The nervous system of spiders, unlike that of other arachnids, is completely concentrated in the cephalothorax. The masses of nervous tissue (ganglia) are fused with a ganglion found under the esophagus and below and behind the brain. The shape of the brain, or epipharyngeal ganglion, somewhat reflects the habits of the spider; i.e., in the web builders, which are sensitive to touch, the... * bats (in bat (mammal): Orientation) Bats of the suborder Microchiroptera orient acoustically by echolocation (“sonar”). They emit short high-frequency pulses of sound (usually well above the range of human hearing) and listen to the echoes returning from objects in the vicinity. By interpreting returning echoes, bats may identify the direction, distance, velocity, and some aspects of the size or nature (or both) of... * Cnidaria statocyst and ocelli (in cnidarian (invertebrate): Nervous system and organs of sensation) ...Light-sensitive ocelli (external patches of pigment and photoreceptor cells organized in either a flat disk or a pit) occur in some medusae of each of the three classes that possess this stage. Such sensory structures are closely associated with a nerve net. * feeding behaviour (in feeding behaviour: Caloric regulation) ...food passes to (4) storage sites, of which the fat tissues are the most important. These four regions are continuously monitored. A considerable amount is known about the monitoring roles of the organs for taste, smell, and touch in the mouth region; in addition, distension receptors in the digestive tract monitor the volume there, and chemoreceptors monitor the nature of the contents.... * fish (in fish (animal): Behaviour; Fishes perceive the world around them by the usual senses of sight, smell, hearing, touch, and taste and by special lateral line water-current detectors. In the few fishes that generate electric fields, a process that might best be called electrolocation aids in perception. One or another of these senses often is emphasized at the expense... in fish (animal): The nervous system and sensory organs ) ...closely interconnected but each serving as the primary centre of integrating particular kinds of responses and activities. Several of these centres or parts are primarily associated with one type of sensory perception, such as sight, hearing, or smell (olfaction). * mating (in reproductive behaviour (zoology): Modes of sexual attraction) The chief clues by which organisms advertise their readiness to engage in reproductive activity are visual, auditory, and olfactory in nature. Most animals use a combination of two modes; sometimes all three are used. * mollusks (in mollusk (animal phylum): The nervous system and organs of sensation) In the nervous system typical of mollusks, a pair of cerebral ganglia (masses of nerve cell bodies) innervate the head, mouth, and associated sense organs. From the dorsal cerebral ganglia, two pairs of longitudinal nerve cords arise: a pair of lateral (pleural) nerve cords, often... * organs (in physiology: Information transfer) The analysis of sensory functions also extends to the cellular level. Sense organs are diverse in structure and sensitivity to specific stimuli. It may be that the common molecular basis for the differences in sensitivity is a change in permeability of a special region of the membrane surrounding a sensory cell. This change in permeability could allow a ... * primates (in primate (mammal): Sensory reception and the brain) Among mammals in general, the olfactory system is the primary receptor for environmental information; consequently, the brain of most mammals is dominated by the olfactory centres. In primates the sense of smell is considerably less important than the well-developed visual system and highly refined sense of touch. The primate brain is... philosophy * epistemology (in epistemology (philosophy): Knowledge of the external world; One possible answer is to say that vision is not sufficient to give knowledge of how things are. Vision needs to be “corrected” with information derived from the other senses. Suppose then that a person asserts that his reason for believing that the stick in water is straight is that, when the stick is in water, he can feel with his hands that it is straight. But what justifies him... in epistemology (philosophy): Phenomenalism ) ...in certain ways. That is, if the object a person is looking at is a tomato, then he can expect that, if he touches, tastes, and smells it, he will experience a recognizable grouping of sensations. If the object he has in his visual field is hallucinatory, then there will be a lack of coherence between what he touches, tastes, and smells. He might, for example, see a red shape but... * philosophy of mind (in philosophy of mind: Philosophy of mind and empirical psychology) ...philosophy of mind is specifically concerned with quite general questions about the nature of mental phenomena: what, for example, is the nature of thought, feeling, perception, consciousness, and sensory experience? * views of + Aristotle (in Aristotle (Greek philosopher): Philosophy of mind) Besides the five senses and the central sense, Aristotle recognizes other faculties that later came to be grouped together as the “inner senses,” notably imagination and memory. Even at the purely philosophical level, however, Aristotle’s accounts of the inner senses are unrewarding. + Berkeley (in George Berkeley (Irish philosopher)) Anglo-Irish Anglican bishop, philosopher, and scientist, best known for his Empiricist philosophy, which holds that everything save the spiritual exists only insofar as it is perceived by the senses. + Lewis (in C.I. Lewis (American philosopher and logician)) ...philosophical concepts in the manner of Kant as rooted in empirical reality. Knowledge, he believed, is possible only where there is a possibility of error. Thus, he modified the traditional view of sensory experience, which regards it as a guarantee of true knowledge and certainty about reality because an individual cannot possibly be mistaken about the sheer impressions given by the senses.... + Locke (in history of Europe: The influence of Locke) ...innate ideas, in Locke’s system knowledge consists of ideas imprinted on the mind through observation of external objects and reflection on the evidence provided by the senses. Moral values, Locke held, are derived from sensations of pleasure or pain, the mind labeling good what experience shows to give pleasure. There are no innate ideas; there is no innate... + Lucretius (in Lucretius (Latin poet and philosopher): Argument of the poem.) 4. Men know by sense perception and argue by reason according to certain rules. Though the senses are infallible, reason can make false inferences. Objects can be seen because they discharge from their surface representative films, which strike the eye just as smells strike the nose. Separate atoms are in principle imperceptible, having no dischargeable parts. The senses perceive the properties... Citations MLA Style: "senses." Encyclopædia Britannica. 2009. Encyclopædia Britannica Online. 02 Dec. 2009 . APA Style: senses. (2009). In Encyclopædia Britannica. Retrieved December 02, 2009, from Encyclopædia Britannica Online: http://www.britannica.com/EBchecked/topic/534691/senses * About Us * Privacy Policy * Terms of Use * RSS Feeds * E-mail Updates * Contact Us * Advertise with Us * Games * MORE... 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