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Tactile haptic feedback is common in cellular devices. In most cases, this takes the form of vibration response to touch. Alpine Electronics uses a haptic feedback technology named PulseTouch on many of their touch-screen car navigation and stereo units. [65] The Nexus One features haptic feedback, according to their specifications. [66]
Haptic perception (Greek: haptόs "palpable", haptikόs "suitable for touch") means literally the ability "to grasp something", and is also known as stereognosis. Perception in this case is achieved through the active exploration of surfaces and objects by a moving subject, as opposed to passive contact by a static subject during tactile perception. [1]
Tactile technology is the integration of multi-sensory triggers within physical objects, allowing "real world" interactions with technology. It is similar to haptic technology , as both focus on touch interactions with technology, but whereas haptic is simulated touch, tactile is physical touch.
This photo shows tactile markings identifying stairs for visually impaired people. The somatosensory system , or somatic sensory system is a subset of the sensory nervous system . It has two subdivisions, one for the detection of mechanosensory information related to touch, and the other for the nociception detection of pain and temperature. [ 1 ]
Tactile perception is achieved through the response of mechanoreceptors (cutaneous receptors) in the skin that detect physical stimuli. The response from a mechanoreceptor detecting pressure can be experienced as a touch, discomfort, or pain. [23] Mechanoreceptors are situated in highly vascularized skin, and appear in both glabrous and hairy skin.
A haptic cue is either a tactile sensation that represents an incoming signal received by the somatic system, or a relationship between tactile sensations which can be used to infer a higher level of information. [18]
Haptic memory represents SM for the tactile sense of touch. Sensory receptors all over the body detect sensations such as pressure, itching, and pain. Information from receptors travel through afferent neurons in the spinal cord to the postcentral gyrus of the parietal lobe in the brain. This pathway comprises the somatosensory system.
Stereognosis (Tactile Gnosis) is defined as the ability to tell the difference and identify objects via touch in the absence of visual or auditory contact. The subject will need to be able to recognize temperature, spatial properties, texture, and size to reach an accurate conclusion to what the object is. [ 13 ]