The boundary of the middle ear extends from the ear­drum to another membrane separating the inner ear from the middle ear. The next action of ‘thinking of the picture’s resemblance’ points towards the concept of perception. They are the sense of vision, hearing, taste, and smell. Thus, one and the same wave­length may have different amplitudes; the smaller amplitude usually is intense whereas the larger amplitude is more intense. In fact, it is impossible to think of behaviour without sense organs as it is impossible to think of it without the brain and the nervous system. Sensation refers to the process of sensing our environment through touch, taste, sight, sound, and smell. These elementary colours are called psychological primaries. The extreme sensitivity of the sense of smell would have been a great nuisance to us had it not been for the phenomenon of adaptation. This stimulus is detected by a sensory organ, and later it is transmitted to a sensory center in the brain, where it is translated into what we understand by sensation. It becomes thinner or flat when focusing on far objects and thicker and curved when focusing on nearer objects. The three colours usually chosen are red, green and blue, which can be used to produce all the other colours by additive mixture. In the case of animals, hearing is very closely concerned with their survival and, in certain highly developed species of animals, hearing becomes a sort of underdeveloped means of vocal communication. (2) There are others who confuse very light pinks, greens, tans and browns. More empirically inclined psychologists and physiologists prefer to regard sensation as a concept (not a datum) defined in terms of dependent relationships between discriminatory responses of organisms and properties of physical stimuli. The sound waves are collected at the external ear, which consists of the decorative ear called the pinna and a canal through which the sound waves are transmitted to the ear drum. Sensation and perception are two separate processes that are very closely related. White noise is like the white light which is composed of all frequencies in the light spectrum. Most types of colour blindness are supposed to be inherited and the defect has been identified as a sex-linked recessive characteristic. One of the three ossicles known as malleus (hammer) is attached to the ear drum. The iris controls the size of the opening known as the pupil, which enlarges its size when light is dim in order to allow more light on the surface, or contracts when the light is bright in order to allow only sufficient light in the eye. The human ear is capable of responding only to a small range of frequencies usually from 16 Hz to about 21,000 Hz. These changes brought about in our receptor organs either due to their continual stimulation or absence of stimulation are referred to as the phenomenon of adaptation. Sensation.The psychological function that perceives immediate reality through the physical senses. This type of deafness is very common among old people. In other words visual acuity is the ability of the individual to perceive differences in details of the visual environment. n. 1. a. Let us know if you have suggestions to improve this article (requires login). Sensation definition: A sensation is a physical feeling. Definition of Sensation. AP Psychology terminology for sensation and perception Learn with flashcards, games, and more — for free. Firstly, the eye sees because of the activity in the brain and not because we see the image of the external object falling on the retina. When the electromagnetic energy strikes in the visible range, rhodopsin is broken into orange intermediates and then into two substances called retinene and opsin. Sensation and perception are two separate processes that are very closely related. People who are high in sensation seeking are attracted to the unknown and as a result consistently seek the new, varied, and unpredictable. He also assumed that each cone functioned in two ways. Sensation is It was a traditional belief that the senses a man possesses are five in number. Different wave-lengths produce different sensations of hue. The evidence for these qualities comes from the fact that the tongue is not uniformly sensitive to all stimuli. When we enter a dimly lighted room after having come from bright sunlight, we are unable to see anything in the room, but gradually things become visible. These three properties of sound are important because they are the basis of our psychological experiences called- (1) pitch, (2) loudness, and (3) timbre. In Eighteenth Century a theory of colour vision proposed by Thomas Young, an English physicist and later modified by the German physiologist Hermann Von Helmholtz and hence the theory has been called the Young-Helmholtz’s theory. It is known as the oval window. A definition of sensation with examples. When hues are mixed, the resulting colour is different not only in hue but also in saturation. In darkness, the cones are not stimulated and hence only the rods can function. As we go up the evolutionary stage, sensory mechanisms become more varied and more sensitive. The rods do not respond to the colour of objects but can see only white, grey and black. Vision has been described as the most important sense in human beings as well as in animals because their survival is closely linked with its normal functioning. In other words, it becomes less and less sensitive during the course of constant stimulation. Our sensation of hue or colour depends upon the wavelength of light. Retina, when examined under a microscope, shows that it is made up of several cells on its surface. A noise is sound composed of many frequencies not in harmonious relation to one another. Cones are packed most closely in the central part of the retina known as the fovea. sensation synonyms, sensation pronunciation, sensation translation, English dictionary definition of sensation. This is due to the aperiodic waves. Besides the least amount of stimulus energy required to detect a sensation, there is also a certain difference between two stimuli before we can distinguish a difference between them. In most cameras, one has to adjust the focus of the lens for objects at different distances by adjusting the lens back and forth. 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