00:00 During a midnight madness sale at Walmart in 1996, customers went to extreme lengths, including physically assaulting an employee, to get their hands on the popular toy Tickle Me Elmo.

03:32 During a midnight madness sale at Walmart in 1996, customers went to extreme lengths, including physically assaulting an employee, to get their hands on the popular toy Tickle Me Elmo.

06:47 There are two categories of tickles: light tickling, which is a light touch that does not induce laughter, and heavy tickling, which is the only one that can induce laughter and is called garglesis; the brain analyzes touch and pressure in the somatosensory cortex and governs pleasant feelings in the interior singulated cortex, which together calculate tickle and laughter.

10:22 Tickling oneself may be possible for individuals with alien hand syndrome, as their brains do not receive the message that their arm is moving, but tickling is generally a social behavior and a product of socialization, as it is a way to bond and play with others.

13:42 Tickling is an ancient behavior that is shared by both humans and apes, as well as rats, and is believed to have evolved as a way to bond and play with others, and certain parts of the body, such as the soles of the feet, are more ticklish due to the sensitivity of the corpuscles in those areas.

17:02 Tickling is not fully understood, but it is believed to be an involuntary response that is not related to mood and may serve as a way to release aggression without causing harm.

20:30 Tickle torture has been used historically as a form of torture in various cultures, and Charles Darwin suggested that tickling is a way for humans to form social bonds.

24:07 This section of the transcript is not relevant to the topic of how tickling works.