. Physical researches on sensation [by] Frank Allen [and others]. 75 -24S 2-17 •004 (iO •33t) 2-30 •(Ki.)00 • 2-33 •0(t430 •3«i7 2-4(1 •(MI495 •:!mi 2-83 •003!»0 •452 2-52 •(Mt470 -4(»1 3-23 •00335 •509 2 57 •0((4(.3 : -410 •00330 •54 » 2(.7304316 •(K(4(Ut•0(»4lO•0039(. -»27-4^ 3^7o •00340 •568 is the first series of fusion points, and represents the- lirialsystem of tactile sensibility ; curve B. the second snic^ of fusion 380 Allen and Weinberg points, represents the deep system. It will be seen that these resultsconfirm those previously obtained by Allen and Hollexberg
. Physical researches on sensation [by] Frank Allen [and others]. 75 -24S 2-17 •004 (iO •33t) 2-30 •(Ki.)00 • 2-33 •0(t430 •3«i7 2-4(1 •(MI495 •:!mi 2-83 •003!»0 •452 2-52 •(Mt470 -4(»1 3-23 •00335 •509 2 57 •0((4(.3 : -410 •00330 •54 » 2(.7304316 •(K(4(Ut•0(»4lO•0039(. -»27-4^ 3^7o •00340 •568 is the first series of fusion points, and represents the- lirialsystem of tactile sensibility ; curve B. the second snic^ of fusion 380 Allen and Weinberg points, represents the deep system. It will be seen that these resultsconfirm those previously obtained by Allen and Hollexberg. In fig. 2, curve A is seen to consist of three branches, the changesof slope occurring at the pressures of about TO cm. and 40 cm. Curve Bis composed of two branches with a change of slope at the pressure08 cm. In all probability this graph also has three branches, themissing one occurring at speeds higher than the capacity of our apparatus 0 002 A. Aformal Supe//yercU Se/aat/on A/ormat Deep „ £ffAtr/rced „. 1-0 cm Fig. 1.—Normal curves for the superficial and deep tactile sensations in the lowerlip. Enliancement produced by light-touch stimulation of the lower lip. to measure. In the former investigation it was found that the changesof slope of the branches of the graphs for the superficial and deep tactilesensations were in opposite directions. This was believed to be due tosome characteristic difference in their nature. The graphs in fig. 2,however, show this explanation to be erroneous. For it is now obviousthat in the former paper the graph for the superficial sensation consistedof the second and third branches only, while that for the deep sensationconsisted of the first and second. From this figure both sensations areseen to behave in the same manner, the deep, however, being moresensitive than the superficial. The Tactile Seiu-orv Reflex 381 The sofond purpose of iliis investigation was a more detailed studyof lij
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectphysiol, bookyear1902
