Reading Test - The SAT Suite of Assessments | College Board

Then, in 1999, the group looked more closely at the characteristics of the slow fibers. They named these “lowthreshold” nerves “Ctactile,” or C T, fibers, said Olausson, because of their “exquisite sensitivity” to slow, gentle tactile stimulation, but unresponsiveness to noxious stimuli like pinpricks. ................
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