It is no coincidence that the hebephrenic patient , the most severely dedifferentiated of all schizophrenic patients , shows, as one of his characteristic symptoms , laughter - laughter which now makes one feel scorned or hated , which now makes one feel like weeping , or which now gives one a glimpse of the bleak and empty expanse of man 's despair ; and which, more often than all these, conveys a welter of feelings which could in no way be conveyed by any number of words , words which are so unlike this welter in being formed and discrete from one another.