Nervous and mental diseases . ^ education, whichin turn increases its growth. It is probable that some overflow occurs APM. Fig. 66.—Scheme to represent the cortical arterial circiilation. a p m, Artery of the pia mater;A c, short arteries to the gray matter ouly; a l, long arteries penetrating the white substance (afterBrissaud). in most brains, so that automatic, emotional and expletive expressionseither come to be located in the right brain or their frequent repetitionsuiflciently educates the right cortex to enable them to be recalledthrough its agency when the left centers arc cut off. Si


Nervous and mental diseases . ^ education, whichin turn increases its growth. It is probable that some overflow occurs APM. Fig. 66.—Scheme to represent the cortical arterial circiilation. a p m, Artery of the pia mater;A c, short arteries to the gray matter ouly; a l, long arteries penetrating the white substance (afterBrissaud). in most brains, so that automatic, emotional and expletive expressionseither come to be located in the right brain or their frequent repetitionsuiflciently educates the right cortex to enable them to be recalledthrough its agency when the left centers arc cut off. Similarly, if speechcontrol be lost to the left half-brain, the right, especially in young per-sons, may be in turn educated to take its place in large measure. It isworthy of consideration whether the Avhole conscious and unconscioustendency of education, habit, custom, and practice to make all men right-handed is not a serious mistake. It seems plausible that should left-handedness, or rather ambidexterity, be assiduously cultivated in chil-dren, the two hemispheres of the brain might enjoy a greater equalityand the


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Keywords: ., bookcentury1900, booksubjectmentalillness, booksubjectnervoussys