At the same time, as I have repeatedly observed, the eyebrows are
slightly lowered, which shows that the upper as well as the lower orbiculars
contract at least to some degree, though this passes unperecived,
as far as our sensations are concerned. If the original photograph
of the old man, with his countenance in its usual placid state
(fig. 4), be compared with that (fig. 5) in which he is naturally smiling,
it may be seen that the eyebrows in the latter are a little lowered.
I presume that this is owing to the upper orbiculars being impelled,
through the force of long-associated habit, to act to a certain extent
in concert with the lower orbiculars, which themselves contract
in connection with the drawing up of the upper lip.
The tendency in the zygomatic muscles to contract under pleasurable emotions
is shown by a curious fact, communicated to me by Dr. Browne, with respect
to patients suffering from GENERAL PARALYSIS OF THE INSANE.[11] "In this
malady there is almost invariably optimism--delusions as to wealth,
rank, grandeur--insane joyousness, benevolence, and profusion, while its
very earliest physical symptom is trembling at the corners of the mouth
and at the outer corners of the eyes.
Pages:
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304