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Touch Sensation

Touch is one of the five senses (the others being smell, taste, vision, and hearing) through which animals and people interpret the world around them. Unlike the other senses are localized primarily in a single area (such as vision in the eyes or taste in the tongue), the sensation of touch (or contact with the outside world) can be experienced anywhere on the body, from the top of the head to the tip of the toe. Touch is based on nerve receptors in the skin that send electrical messages through the central nervous system to the cerebral cortex in the brain, which interprets these electrical codes. For the most part, the touch receptors specialize in experiencing either hot, cold, pain, or pressure. Arguably, touch is the most important of all the senses; without it animals would not be able to recognize pain (such as scalding water), which would greatly decrease their chances for survival. Research has also shown that touch has tremendous psychological ramifications in areas like child development, persuasion, healing, and reducing anxiety and tension. Our sense of touch is based primarily in the outer layer of skin called the epidermis. Nerve endings that lie in or just below the epidermis cells respond to various outside stimuli, which are categorized into four basic stimuli: pressure, pain, hot, and cold.


Affection	Careful Touching	Touch-screen
Plate 9 Touching

Touching (plate 9) has many reaction from affection to mechanical touching experience. Each time we experience different emotional experience. Touch-screen is a recent technology that is exploiting the touch sensory of human beings. Human beings feel confortable and safe wihile experiencing something through touching. Other animals are equipped with various mechanisms to ensure their safety. Magnetic reception and a “distance-touch” sensation is such mechanism that helps living beings to survive inside water.