The Five Senses of ManD. Appleton, 1886 - 304 pagini |
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Pagina 15
... distance of the point touched from the Singer - tip with tolerable certainty . Similarly , the sensi- tility of the face and of the forehead is strongly marked , while that of the lips and the tongue is more perfect still . Experience ...
... distance of the point touched from the Singer - tip with tolerable certainty . Similarly , the sensi- tility of the face and of the forehead is strongly marked , while that of the lips and the tongue is more perfect still . Experience ...
Pagina 25
... distance from one another on a part of the skin of the other person . The latter must then say , with closed eyes , whether he feels the contact of two separate points , or whether both points seem to be merged into one . The result of ...
... distance from one another on a part of the skin of the other person . The latter must then say , with closed eyes , whether he feels the contact of two separate points , or whether both points seem to be merged into one . The result of ...
Pagina 26
... distance of about four centimetres ( 1.58 inch ) apart , the sensation is then evidently a double one ; but as soon as the distance between the points is less than three centimetres ( 1.18 inch ) , the contact is then felt as that of a ...
... distance of about four centimetres ( 1.58 inch ) apart , the sensation is then evidently a double one ; but as soon as the distance between the points is less than three centimetres ( 1.18 inch ) , the contact is then felt as that of a ...
Pagina 27
... distance of five to six centimetres apart ( 197-2.36 inches ) , they are still per- ceived as a single touch . It is quite astonishing how greatly the distance between the two points must be increased on the back before we are clearly ...
... distance of five to six centimetres apart ( 197-2.36 inches ) , they are still per- ceived as a single touch . It is quite astonishing how greatly the distance between the two points must be increased on the back before we are clearly ...
Pagina 29
... distance apart pro- duce a single , not a double impression , and in certain parts of the skin this distance may be very considerable . All the points which lie within a sensory circle cannot be distinguished from each other by the ...
... distance apart pro- duce a single , not a double impression , and in certain parts of the skin this distance may be very considerable . All the points which lie within a sensory circle cannot be distinguished from each other by the ...
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Termeni și expresii frecvente
action apparatus appear auditory canal auditory nerve basilar membrane blue body brain called camera obscura cause centre cochlea colours conveyed direction dissonance distance distant object distinctly distinguish ear-bones edge Ernst Heinrich Weber Eustachian tube exactly excited experience external ear fenestra ovalis fibres of Corti field of vision finger fixed fundamental tone greater green harmonics Helmholtz imagine impression incidental images instance instrument inwards irritation labyrinth labyrinthine fluid lens look manner means motion move muscles musical nerve-fibres number of vibrations observed octave olfactory olfactory nerve optic nerve organs of Corti outer passes peculiar perceive perception picture pitch position possess produced rays of light recognise refraction resonator retina seen sensation of light sense of touch sensory circle sensory organs single skin smell sound sound-waves spectrum string substances suppose surface sympathetic vibrations takes place terminal tion tube tuning-fork tympanic cavity tympanic membrane violet waves whilst yellow spot