touch

 

THE SENSE OF TOUCH

  

the sense of the touch it is one of the four senses . It is the sense that recognizing through touch . It involves a combination of somatosensory perception of patterns on the skin surface and proprioception . People can rapidly and accurately identify three-dimensional objects by touch they do so through the use of exploratory procedures , such as moving the fingers over the outer surface of the object or holding the entire object in the hand . Gibson defined the aptic systems as the sensibility of the individual to the world adjacent to his body by use of his body . Gibson and others emphasized the close link between haptic perception is active exploration . The concept of haptic perception is related to the concept of extended physiological proprioception according to wich ,when using a tool such as a stick  , perceptual experience is transparently transferred to the end of the tool. Haptic perception relies on the forces experiences during touch .This research allows the creation of virtual, illusory haptic shapes with different perceived qualities wich has clear application in haptic technology . Loss of the sense of touch is a catasstrophic deficit that can impair walking and other skilled actions such as holding objects or using tools