参考答案：D

解析：[分析] 细节题型。 见文章倒数第三句：These symptoms may include hallucinations．(幻觉)，incoherence(语无伦次)，delusions(错觉)，lack of judgment，deterioration of the abilities to reason and feel emotion，and a lack of interaction between the patient and his environment．其中提到精神分裂症的症状，选项D．Vertigo(眩晕)不是，所以是答案。