The origin and nature of the emotions; miscellaneous papers . FiG. 9.—Contest Bet\veen Ant-bear and shows the attack with teetli and claws upon unprotected parts, andillustrates the method liy which deep, ticklish points were developed and whytrauma of these parts jiroduces the greatest shock. tribution of the ticklish points upon them, and the associ-ated responee, leave no doubt that these ticklish points were 22 THE EMOTIONS long ago ostahlishod as a moans of jirotcction from present conditions they are of little value to man. The adequate stinuilus for the ticklish
The origin and nature of the emotions; miscellaneous papers . FiG. 9.—Contest Bet\veen Ant-bear and shows the attack with teetli and claws upon unprotected parts, andillustrates the method liy which deep, ticklish points were developed and whytrauma of these parts jiroduces the greatest shock. tribution of the ticklish points upon them, and the associ-ated responee, leave no doubt that these ticklish points were 22 THE EMOTIONS long ago ostahlishod as a moans of jirotcction from present conditions they are of little value to man. The adequate stinuilus for the ticklish points of the ribs,the loins, the alxlomen, and the neck is deep isolated pres-sure, prol)ably the most adequate being pressure by a tooth-shaped body. The response to tickling in these regions isactively and obviously self-defensive. The horse discharges ..^TiTi.^iojn^^^jp^wyiaayTrf-Pf^. Fill. 10.—I5eai( (cbs at Play. They :ire clawiiiK ami liiliiin cadi in licklish and thus recapitu- lalinf!; IjattliS. (Photo by lnilii\V(joil anil Uiiilrrwoml, N. Y.) energy in the form of a kick; the dog wriggles and makes acounter-bite; tlie man makes efforts at defense and escape,^iliere is strong evidence that the tleep ticklish points of thebody were de\(>loped through vast j^eriods of fighting withteeth and claws (Fig. it). E\en ])U])pies at play bite eachother in their licklish ])oints and thus give a recajiitulationof their ancestral battles and of the Ieal battles to come (Fig. PHYLOGENETIC ASSOCIATION AND MEDICAL PROBLEMS 23 10). The mere fact that animals fight effectively in the darkand always according to the habit of their species supportsthe belief that the fighting of animals is not an intellectualbut a reflex process. There are no rules which govern theconduct of a fight between animals. The events follow eachother with such kaleidosc
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Keywords: ., bookcentury1900, bookdecade1910, booksubject, booksubjectemotions
