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Harvard Psychological Studies, Volume 1 - Containing Sixteen Experimental Investigations from the Harvard Psychological Laboratory. by Various
page 60 of 880 (06%)
The principal direction of discharge, then, from the color-centers is
toward the localization-centers.

Now the experiment with falsely and correctly localized after-images
proves that before the anæsthesia all localization is with reference
to the point of departure, while afterwards it is with reference to
the final fixation-point. The transition is abrupt. During the
anæsthesia, then, the mechanism of localization is suffering a
readjustment. It is proved that during this interval of readjustment
in the centers of eye-muscle sensation the way is closed to oncoming
discharges from the color-centers; but it is certain that any such
discharge, during this complicated process of readjustment, would take
the localization-centres by surprise, as it were, and might
conceivably result in untoward eye-movements highly prejudicial to the
safety of the individual as a whole. The much more probable event is
the following:

Although Schwarz suggests that the moment between seeing the false and
seeing the correct after-image is the moment that consciousness is
taken up with 'innervation-feelings' of the eye-movement, this is
impossible, since the innervation-feelings (using the word in the only
permissible sense of remembered muscle-sensations) must _precede_ the
movement, whereas even the first-seen, falsely localized streak is not
generated till the movement commences. But we do have to suppose that
during the visual anæsthesia, muscle-sensations of _present_ movement
are streaming to consciousness, to form the basis of the new
post-motum localization. And these would have to go to those very
centers mentioned above, the localization-centers or eye-muscle
sensation centers. One may well suppose that these incoming currents
so raise the tension of these centers that for the moment no discharge
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