An inflammatory encephalitic process has been suggested as a possible cause of this disorder.About two-thirds of patients are left with a more or less severe receptive language deficit.

• 这种情况的病因仍未知，但临床的特征显示了发炎性脑炎过程病变的可能性，有叁分之二的儿童有严重的接受性语言障碍。