The following remarks of Prof. A. Allin may also be quoted in
further explanation of the same theory: "So far as ticklishness
is concerned, a very important factor in the production of this
feeling is undoubtedly that of the summation of stimuli. In a
research of Stirling's, carried on under Ludwig's direction, it
was shown that reflex contractions only occur from repeated
shocks to the nerve-centres--that is, through summation of
successive stimuli. That this result is also due in some degree
to an alternating increase in the sensibility of the various
areas in question from altered supply of blood is reasonably
certain. As a consequence of this summation-process there would
result in many cases and in cases of excessive nervous discharge
the opposite of pleasure, namely: pain. A number of instances
have been recorded of death resulting from tickling, and there is
no reason to doubt the truth of the statement that Simon de
Montfort, during the persecution of the Albigenses, put some of
them to death by tickling the soles of their feet with a feather.
An additional causal factor in the production of tickling may lie
in the nature and structure of the nervous process involved in
perception in general.
Pages:
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46