In 1) B learnt to bring a building stone on hearing the word
“column!” called out.
We could imagine what happened in such a case to be this:
In B's mind the word called out brought up an image
of a column, say; the training had, as we should say, established this
association.
B takes up that building stone which conforms to his image. ‒ ‒
But was this
necessarily what happened?
If the training could bring it about that the idea or image – –
automatically – – arose in B's mind, why
shouldn't it bring about B's
actions
without the intervention of an image?
20.
This would only come to a slight variation of the associative
mechanism.
Bear in mind that the image which is brought up by the word is not
arrived at by a rational process (but if it is, this only pushes our
argument further back), but that this case is strictly comparable with
that of a mechanism in which a button is pressed and an indicator
plate appears.
In fact this sort of mechanism can be used instead of that of
association.