friction, the heat, as it were, evolved by partial stoppage of the current, we see at once that this should develop both when the current is increased, the resistance remaining the same, and when the resistance is increased, the current continuing as before. We ought, therefore, in dreams, to find great vividness of impression side by side with no impression at all; which is just what we do find. Though the stream of thought in dream-states has probably less head to it, the increased resistance enables it to produce as much commotion. We may parallel the action by that of an electric current, which, when great, will make even a conductor of slight resistance glow, and when feeble, will make one of great resistance do the same. At present, this is merely a suggestive analogy; but it may turn out truer than we imagine.
The theory here advanced explains, therefore, the at first strange anomaly, that both an unusually strong current and an usually feeble one may alike produce an unusually vivid consciousness. For vividness follows either an increase in the current or an increase in the resistance.
