sensitive motions are those contractions of the muscular fibres, or of the
organs of sense, that are immediately consequent to this exertion or change
of the sensorium.

3. Voluntary motions. That exertion or change of the sensorium, which
constitutes desire or aversion, either simply subsides, or is succeeded by
fibrous motions; it is then termed volition, and voluntary motions are
those contractions of the muscular fibres, or of the organs of sense, that
are immediately consequent to this exertion or change of the sensorium.

4. Associate motions. That exertion or change of the sensorium, which
accompanies fibrous motions, either simply subsides, or is succeeded by
sensation or volition, or it produces other fibrous motions; it is then
termed association, and the associate motions are those contractions of the
muscular fibres, or of the organs of sense, that are immediately consequent
to this exertion or change of the sensorium.

* * * * *

SECT. VII.

OF IRRITATIVE MOTIONS.

I. 1. _Some muscular motions are excited by perpetual irritations._ 2.
_Others more frequently by sensations._ 3. _Others by volition. Case of
involuntary stretchings in paralytic limbs._ 4. _Some sensual motions
are excited by perpetual irritations._ 5. _Others more frequently by
sensation or volition._

II. 1. _Muscular motions excited by perpetual irritations occasionally