. Manual of mental and physical tests : in two parts : a book of directions compiled with special reference to the experimental study of children in the laboratory or classroom. 45°, and pierced For some purposes it is probably quite as well to test the subjectwithout the use of apparatus. Thus, according to Sturgis, the followingconstitutes an infallible test for chorea: Bid the child hold up bothbands open, with extended arms, the palms toward you. If that is donesteadily, both hands upright and both alilvc, no finger or hand quivering,no falling back of either hand, nothing to choose betwee
. Manual of mental and physical tests : in two parts : a book of directions compiled with special reference to the experimental study of children in the laboratory or classroom. 45°, and pierced For some purposes it is probably quite as well to test the subjectwithout the use of apparatus. Thus, according to Sturgis, the followingconstitutes an infallible test for chorea: Bid the child hold up bothbands open, with extended arms, the palms toward you. If that is donesteadily, both hands upright and both alilvc, no finger or hand quivering,no falling back of either hand, nothing to choose between the positions ofthe two, then the child has not, nor is it near (either before or after)St. Vitus dance. You may confirm this test by another. Let the childplace the open hands upon yours, palm to palm. Look then at the backsof the childs hands, observe whether fingers or thumbs (especially thelatter) repose without tremor and without restraint. TEST 13: INVOLUNTARY MOVEMENT 157 with a series of holes whose diameters are 32, 20, 16, 13, 11, 10,9, 8 and 7 sixty-fourths of an inch, respectively (Fig. 34).Metallic needle of special design, with flexible connecting FIG. ^34. STEADINESS TESTEB. Telegraph sounder (Fig. 33), with writing lever attached to thearmature, and with sending key (or separate short-circuitingkey). Kymograph (Fig. 22), with accessories. Stop-watch(Fig 20). Four dry or other open-circuit cells. Insulated con-necting wire. [A low table, about 65 cm. high, and an adjust-able chair of the typewriter chair pattern are desirable.] PuELiMiNAUiES.—Wire the needle, brass plate, sounder andkey in series with the battery in such a way that contact be-tween the needle and the plate will actuate the sounder. Placesmoked paper on the kymograph drum, and adjust to approxi-mately one revolution in 40 sec. Adjust the position of thesounder so that the writing lever gives a satisfactory tracingon the drum.^ Method.—Seat S before the table in a comfortable position
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Keywords: ., boo, bookcentury1900, bookdecade1920, booksubjectpsychophysiology
