Abstract:
:Reaction times and perceived intensities for NaCl solutions were measured in sixteen human adults. Stimulus delivery was by means of a circular piece of solution-soaked filter paper held with forceps. The reaction time (T) decreased and the perceived intensity (S) increased with increasing the concentration (C) of NaCl solution applied to a fixed (78.5 mm2) tongue area. The comprehensive relations among T, S and C can be expressed by the following formula; T=a+b/log(C/Co), T=p+q/log(S/So), and logS=mlogC+logn, where a, b, p, q, m, n=constants, and So indicates the perceived intensity at the threshold concentration (Co). Meanwhile, the reaction time decreased and the perceived intensity increased with increasing the stimulated area (A) under a fixed (1.0 M) concentration of NaCl solution. The relations among T, S and A can also be expressed by the following equations; T=a'+b'/log(A/Ao), T=p'+q'/log(S/So), and logS=m'logA+logn', where a', b', p', q', m', n'=constants, and Ao indicates the threshold size of stimulated area.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Yamamoto T,Kato T,Matsuo R,Araie N,Azuma S,Kawamura Ydoi
10.1016/0031-9384(82)90369-9subject
Has Abstractpub_date
1982-07-01 00:00:00pages
79-84issue
1eissn
0031-9384issn
1873-507Xpii
0031-9384(82)90369-9journal_volume
29pub_type
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