Letters: Antidream Machine

Dream when you're feeling blue?

Not any more—if a machine reported in a recent issue of the Naval Research Reviews is put into use. By measuring brainwaves through the use of electrodes, a device no larger than a pack of cigarettes can gauge a person's level of concentration. If his mind begins to wander, a tone sounds, jolting him from his reverie. If he continues to daydream, another alarm goes off, notifying his boss, his teacher or some Big Brother who can promptly set the dreamer straight.

This instrument of wakefulness, designed by Scientist Karel Montor, was first tested on midshipmen volunteers...

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