CHAP. VII. Of the Epilepsie, or Falling-sickness.
THe Epilepsie, is a Convulsion of the whol Body, not continually, but by fits, with a hin∣derance both of the Mind and Sences.
The Word Convulsion, is not here taken properly and strictly for a true Convulsion; but improperly, for a Convulsive Motion: For an Epilepsy is a Convulsive Motion, not a true Convulsion. But we keep the name of Convulsion in imitation of Galen, who calls an Epilepsy alwaies a Convulsion.
This Definition is taken out of Galen, 3. de loc. aff. cap. 7. and lib. de diff. sympt. cap. 3. and de∣fines a perfect Epilepsie, in which all the Body is contracted, and all the Sences both internal and ex∣ternal are abolished. Yet there are imperfect Epilepsies, in which only the Head, or Arm, Leg, and Thigh, or half the Body is only contracted. There is also an Epilepsy in which the mind remains sound, and the external sences, and also the voluntary motion of some parts. I saw a Nun, which in her Epileptick fits had divers contractions, somtimes of the Arms, then of the Legs, somtimes of the Head, afterwards of the whol Body; yet she saw those that stood by and spake; nay, she also en∣deavored a voluntary motion against the Convulsive, so as she did in a manner diminish the involun∣tary motion: somtimes she was in a smal fit only, and walked about her Chamber, but with a disor∣derly motion, leaping and using strange antick postures, by which she caused the rest of the Nuns to be very merry, and she at that time laughed with them, and spake when she pleased.
Every convulsive motion (as I said in the former chapter) cometh of provocation, which procee∣deth from the quantity or quality of the matter. The quantity of matter which causeth the disease, burdening Nature, stirs her up to expel that which is troublesom to her. Whence the Opinion of Galen is confirmed, which is so disputed by late Physitians, That an Epilepsy comes of an imper∣fect obstruction of the Ventricles of the Brain; for if the humor obstructing or stopping is burden∣som to Nature, the Brain will labor to expel it. In the quality there is no difference, for all agree in this, That the expulsive faculty is stirred up by sharpness and acrimony, and by any quality which is offensive to Nature.
The Causes stirring up or provoking, are either contained in the Brain, and make a proper Epilep∣sy, or come from other parts, and so make an Epilepsy by consent or sympathy.
And that provoking or irritation makes an Epilepsy, when the Brain laboring to expel that which is offensive shakes its self, and by consequence all the Nerves which are adjoyned to it.