The origin and nature of the emotions; miscellaneous papers . O I a fQ M O a ^ -^ U CO 8 X aCO 40 THE EMOTIONS Now, a great distinction l:)et\veen man and the lower animalsis the greater control man has acciuired over his quality of control, having been jihylogenetically mostrecently accjuired, is the most vulnerable to various nocuousinfluences. The result of a C(jnstant noci-integration may bea wearing-out of the control cells of the Ijrain. In a typical. Fig. 16.—, Tasi; ok Goiter case of riraves disease a marked mor])h
The origin and nature of the emotions; miscellaneous papers . O I a fQ M O a ^ -^ U CO 8 X aCO 40 THE EMOTIONS Now, a great distinction l:)et\veen man and the lower animalsis the greater control man has acciuired over his quality of control, having been jihylogenetically mostrecently accjuired, is the most vulnerable to various nocuousinfluences. The result of a C(jnstant noci-integration may bea wearing-out of the control cells of the Ijrain. In a typical. Fig. 16.—, Tasi; ok Goiter case of riraves disease a marked mor])hologic change in thebrain-cells has been demonstrated (Pig. 15j. As has beenpreviously stated, the origin of many cases of CJravesdisease is associated witli some noci-infiuence. If this in-fluence causes stimulation of both the brain and the thyroid,its excessive action may cause impairment of the brain PHYLOGENETIC ASSOCIATION AND MEDICAL PROBLEMS 41 and also hyperplasia of the thyroid. As self-control is im-paired, fear obtains an ascendency and, pari passu, stimulatesthe thyroid still more actively (Fig. 16). Finally, the fearof the disease itself becomes a noci-stinmlus. As the thy-roid secretion causes an increase in the facility with whichnervous energy is discharged, a pathologic reciprocal inter-action is established between the brain and the effect of the constantly recurring stimulus of the noci-influence is heightened by summation. This
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Keywords: ., bookcentury1900, bookdecade1910, booksubject, booksubjectemotions
