Sung Kim Point

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comes to the question of why certain parts of our bodies—feet, chest, lower backs, underarms, etc.—are more sensitive than , a term coined by two psychologists, Arthur Allin and G. Stanley Hall. (They differentiate this type of tickling from knismesis, which is akin to a light itch.) Gargalesis usually only occurs when the tickler and the tickler’s “victim” are familiar and comfortable with each other. A child being tickled by his or her parent, or a person being tickled by others, some believe that it’s an evolutionary trait we’ve developed to protect ourselves from small bugs, spiders, and other surprise attackers. The key word here is surprise—the grazing touch usually needs to come unexpectedly to yield laughter. Research has shown that the cerebellum, which registers touch, shows more activity when the touch is a surprise rather than anticipated. If the brain recognizes that the touch is coming, it will make the nerve response less intense, which is why we can’t tickle ourselves successfully. Why we laugh when tickled is possibly where social cues come into play. Tickling that produces laughter is referred to as gargalesisa partner or close friend, will often attempt to escape the attack