. A Reference handbook of the medical sciences embracing the entire range of scientific and practical medicine and allied science . ts made for their diversion. All this variety of au-tomatic actioii and speech would seem to indicate thatthe healthy functional activity of the bigber ceiclnalcenties has been disturbed and partially suspended, andthat the lower centics aie acting mechanically and with-out the normal volitional control. Prolonged automatic activity in thought, speech, andaction, among the insane, suggests a serious lesion in thehigher biain. The more mechanical and purposeless th
. A Reference handbook of the medical sciences embracing the entire range of scientific and practical medicine and allied science . ts made for their diversion. All this variety of au-tomatic actioii and speech would seem to indicate thatthe healthy functional activity of the bigber ceiclnalcenties has been disturbed and partially suspended, andthat the lower centics aie acting mechanically and with-out the normal volitional control. Prolonged automatic activity in thought, speech, andaction, among the insane, suggests a serious lesion in thehigher biain. The more mechanical and purposeless thewords and acts of the patient, the graver is the prognosis. The nervous system manifests a sticking tendency tomechanical repetition of any process once initiated withinits centres. One epileptic attack is likely to be followed melancholia manifest tendencies to repetitions of the at-tack, and each new attack Ienders the probability of an-other quite certain, until recurrency or permanent insan-ity is established. In the advanced stages of feveis, such as typhoid andscarlatina, the higher functions of the mind are often sus-. FiG. 2832.—Ca-se II. Dementia Prtecox. Remission. pended, either from exhaustion or because the corticalcentres have been disturbed by the severity of the febrileaction. In these grave physical conditions the automatic 61 Dlk»auit).lusaiiit}. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. and purposeless repetition of words and muscular move-meuts becomes quite noticeable. Subsultus lenilinum,carpliologia, tiresome utterance of some particular sovmdor word,indicate that the higher cerebral functions have of the patient may be equally grave, for the reason thathealthy functional activity of the cortex has been per-manently disturbed by tlie disease, which, though not
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