As we saw on the last page, the most common ticklish spots are also often those most vulnerable to attack, at least around the upper body. Find out what they had to say in the following tell-all confessions. 5. Light tickling, such as the brush of a feather across the soles of your feet, is called knismesis. Wiki User Answered . http://www.ncbi.nlm.nih.gov/pubmed/10943682