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2nd Level Green Feather
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I used to work in publishing, had this book ("An Introduction To The Brain And Behavior, 4th edition" by Brian Kolb and Ian Q. Whishaw, 2014) laying around forever, just cracked it open, this is what was in there regarding, you know......."the thing", lol. I'm sure this is all ground that's been covered before here on the Forum in similar threads, but here's the 2014 textbook version, for whatever it's worth to you.
Everyone knows the effects and consequences of tickling. The perception is a curious mixture of pleasant and unpleasant sensations. There are two kinds of tickling. The sensation from a light caress is kinismesis; the pleasurable effect of hard rhythmic probing is gargalesis.
The tickle sensation is experienced not only by humans but also by other primates and by cats, rats, and probably most mammals. Play in rats is associated with 50-kilohertz vocalizations, and tickling body regions that are targets of the rats’ own play also elicits 50-kilohertz vocalizations (Panksepp, 2007).
Tickling is rewarding in that people and animals solicit tickles from others. They even enjoy observing others being tickled. Using a robot and brain-imaging techniques, Sarah Blakemore and her colleagues (1998) explained why we cannot tickle ourselves. Blakemore had participants deliver two kinds of identical tactile stimuli to the palms of their hand. In one condition, the stimulus was predictable and in the other a robot introduced an unpredictable delay in the stimulus. Only the unpredictable stimulus was perceived as a tickle. Thus, it is not the stimulation itself but its unpredictability that accounts for the tickle perception. This is why we cannot tickle ourselves.
One interesting feature of tickling is its accompanying, distinctive laughter. This laughter can be identified by sonograms (sound analysis), and people can distinguish tickle-related laughter from other forms of laughter.
Intrigued by findings that all apes appear to laugh during tickling, Ross and coworkers (2009) compared tickle-related laughter in apes and found that human laughter is more similar to chimpanzee laughter than to the laughter of gorillas and other apes. We humans thus have inherited not only susceptibility to tickling from our ape ancestors but laughter as well.
Earlier in the book, within a much longer analysis of something unrelated, there's this:
At the same time, we need to know about the combined sensory properties of a stimulus. For instance, when we manipulate an object, it is useful to “know” the object both by its sensory properties, such as temperature and texture, and by the movements we make as we handle it. For this reason, the cortex provides for somatosensory synthesis too. The tickle sensation seems rooted in an “other versus us” somatosensory distinction, as described in Research Focus 11-6, “Tickling” on page 392
Everyone knows the effects and consequences of tickling. The perception is a curious mixture of pleasant and unpleasant sensations. There are two kinds of tickling. The sensation from a light caress is kinismesis; the pleasurable effect of hard rhythmic probing is gargalesis.
The tickle sensation is experienced not only by humans but also by other primates and by cats, rats, and probably most mammals. Play in rats is associated with 50-kilohertz vocalizations, and tickling body regions that are targets of the rats’ own play also elicits 50-kilohertz vocalizations (Panksepp, 2007).
Tickling is rewarding in that people and animals solicit tickles from others. They even enjoy observing others being tickled. Using a robot and brain-imaging techniques, Sarah Blakemore and her colleagues (1998) explained why we cannot tickle ourselves. Blakemore had participants deliver two kinds of identical tactile stimuli to the palms of their hand. In one condition, the stimulus was predictable and in the other a robot introduced an unpredictable delay in the stimulus. Only the unpredictable stimulus was perceived as a tickle. Thus, it is not the stimulation itself but its unpredictability that accounts for the tickle perception. This is why we cannot tickle ourselves.
One interesting feature of tickling is its accompanying, distinctive laughter. This laughter can be identified by sonograms (sound analysis), and people can distinguish tickle-related laughter from other forms of laughter.
Intrigued by findings that all apes appear to laugh during tickling, Ross and coworkers (2009) compared tickle-related laughter in apes and found that human laughter is more similar to chimpanzee laughter than to the laughter of gorillas and other apes. We humans thus have inherited not only susceptibility to tickling from our ape ancestors but laughter as well.
Earlier in the book, within a much longer analysis of something unrelated, there's this:
At the same time, we need to know about the combined sensory properties of a stimulus. For instance, when we manipulate an object, it is useful to “know” the object both by its sensory properties, such as temperature and texture, and by the movements we make as we handle it. For this reason, the cortex provides for somatosensory synthesis too. The tickle sensation seems rooted in an “other versus us” somatosensory distinction, as described in Research Focus 11-6, “Tickling” on page 392
lol thou I do love interesting stuff like this
