No conclusive evidence exists to support whether everyone is truly ticklish or not. Each person has a "ticklish" response to stimuli dependent upon the sensitivity of his nervous system and other factors, but tickling the skin does not always result in laughter.Know More
Tickling is subjective, with stimuli producing a variety of responses. Unanticipated tickling often results in laughter, while being prepared for tickling can prevent the laugh response.
Gargalesis is tickling that can produce laughter, while knismesis is tickling produced by light touch that often results in an itchy feeling.
Various studies on tickling have been carried out, with a wide array of results that explain why tickling happens, how different people respond and why self-tickling does not work.Learn More
As of 2014, no hard evidence explains what causes a person to be more or less sensitive to tickling, though there are theories. The tickling sensation is caused by nerve fibers associated with both pain and touch, and specific behaviors are associated with the stimulation of those fibers.Full Answer >
The sensation of being ticklish occurs as a physiological response to unexpected touch when the somatosensory cortex and anterior cingulate cortex in the brain produce two messages via the central nervous system that combine to produce a pleasant sensation, reports Josh Clark for HowStuffWorks. The same nerves that interpret the tickling sensation also report sensations of hot, cold and pain to the brain's neurological pathways.Full Answer >
Tickling is still poorly understood by science, but it doesn't appear that dogs are ticklish like humans. However, dogs do have a well-known reflex, called the scratch reflex, which triggers them to twitch a leg when touched in certain areas. This is popularly referred to as being ticklish.Full Answer >
Cats do experience a form of tickling called knismesis, which is the type that feels itchy or mildly irritating. However, cats do not experience the kind of laughter-inducing tickling that people do, which is known as gargalesis.Full Answer >