Haptic technology manufacturers such Nokia, LG and Motorola have included different types of haptic technologies in their 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. The Nexus One features haptic feedback, according to their specifications. Samsung first launched a phone with haptics in 2007. Surface haptics refers to the production of variable forces on a user's finger as it interacts with a surface, such as a touchscreen. Tanvas uses an electrostatic technology to control the in-plane forces experienced
Special senses Humans can also have distortion of tastes through dysgeusia. Not all mammals share the same taste senses: some rodents can taste starch (which humans cannot), cats cannot taste sweetness, and several other carnivores including hyenas, dolphins, and sea lions, have lost the ability to sense up to four of their ancestral five taste senses. Special senses In medicine and anatomy, the special senses are the senses that have specialized organs devoted to them: The distinction between special and general senses is used to classify nerve fibers running to and from the central nervous system – information from special senses is