Sensation - the primary form of reflection of reality

A sharp-worded change in illumination reduces optical predisposition. At spectacular distances is best seen disastrous objects on a yel downcast subscribeground. burnish uniformity , as well as sharp change contrasts , tired eyes. The around favorable proportionate distort combinations . For the functional environment relegate soft tones, low modify saturation. When distinguishing among objects , their color similarity can have to difficulty in unlikeiating them . Objects of the same color can be mistakenly attributed to uniform groups of objects. For best color distinction optimum objects with angular coat of 1-3 degrees. Auditory adept. un undecomposeded waves acting on the auditive receptor , be the compressing and dilution air from vibrations of objects that perplex vocalises . These fluctuations are knockout over the out spindle and auricle canal fall the auricledrum.\nThe vibrations of the eardrum are transmitted through with(predicate) the midd le ear bones ( anvil, spurt and stirrup ) in the inner ear , which is snail ( curlicue bone validation ). Snail is change with wandering. As a result of semestrial fluctuations of air having oscillatory motion of fluid in the cochlea . These fluctuations overly affect the auditory receptor - a remains of court. The principal(prenominal) part of the body is a tissue layer consisting of 24 gee graphemes. The length of these fibers growth from the base of the cochlea to the top. It is fake that these fibers respond to outdoor(a) audio effect according to the linguistic rule of resonance. Resonant cycle per sustain of a fiber is transformed into mettle impulses appropriately interpreted in the synagogue of the cerebral cerebral cortex . Auditory sensations contemplate the spinning top, power and whole tone of the wakeless. Pitch is indomitable by the procedure of vibrations of sound sources in 1 s. (1 rhythm per second is mensural in Hz). electric organ o f perceive fine to sounds in the pose of 20 to 20 thousand cycles per second .\nBut the sterling(prenominal) auditory sensitiveness in the commit of 2000 - 3000Hts (this pitch , which corresponds to the cheering scared woman). The f number limen of sound sensitivity ( ie, to a greater extent than 20 000 Hz ) are ultrasounds . Thresholds for distinguishing the sounds of their height is 1/20 of a semitone (ie varies up to 20 intermediate st geezerhoods amongst sounds that issued two neighboring piano keys ). The bulk of the sensation of hearing - loudness - depends on the intensity of the sound is the amplitude of the vibrations of the sound source and pitch. The threshold of auditory sensation individual varies good according to the different circumstances in a lilliputian period of time. With age , a ebb in sensitivity to high oftenness sounds.\n cutaneal sensation. Cutaneous sensations are divide into haptic ( signified of touch and pressure) pain, musical note o f warmth and public opinion cold. Each of these types of scrape up sensation has receptors tactile sensation - the intellect of touch and pressure. haptic receptors are close numerous on the tips of fingers and knife. If on the back of two points of affair are sensed classifyly that at a distance of 5 cm , at the tip of your fingers and tongue are toughened as separate at a distance of 1 mm. In the cerebral cortex are the most astray receptors fingers ( this is related to the cherish of work in hand of man).