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The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from Expression of Emotion in Man and Animals by Charles Darwin: the strength of the pyramidal muscles. In both these cases the eyebrows
and forehead were acted on under the influence of a strong light,
in precisely the same manner, in every characteristic detail,
as under the influence of grief or anxiety.
Duchenne states that the pyramidal muscle of the nose is less under
the control of the will than are the other muscles round the eyes.
He remarks that the young man who could so well act on his grief-muscles,
as well as on most of his other facial muscles, could not contract the
pyramidals.[5] This power, however, no doubt differs in different persons.
The pyramidal muscle serves to draw down the skin of the forehead
between the eyebrows, together with their inner extremities.
Expression of Emotion in Man and Animals |
