"Fixation and organization of repeated experiences in the mind is shown in music, for a song that has been sung at the hospitals, and the wounded soldiers, especially those who have been 'gassed,' make the hospitals resound with their shrieks and yells as they dream, disturbing the other patients and causing great distress to doctors and nurses." From a war hospital scene by the celebrated Dutch artist, Louis Racine, a number of times only requires the first word or note for it to be continued to the finish without any effort of consciousness, the last note or word uttered serving as the appropriate stimulus of the next: as by an instinct, we have what is termed a chain refrised."
Music restored the mind of a poor fellow who had received a bullet through the head, causing total blindness. It had passed through the loft side of his brain. At first he could only utter two sounds. "Ah" and "Oot." The doctor began the familiar chorus of "Tippoorary" and the patient was able to sing it through. The doctor comments that the soul had become organized in both halves of the brain.
Then the doctor tried him with the British soldier's familiar phrase, "Are we downhearted? No." But he could not repeat it. A month later the man's mind was restored, chiefly owing to his suffering.
British Soldiers Awakening at Dawn After Sleeping on the Bare Ground Near the Firing Line, a Hard Experience That They Will Go Through Many Times in Their Dreams, If They Live. 