Which symptom is characterized by derailment and tangentiality in speech?

• A. Disorganized Thinking (Speech)
• B. Grossly Disorganized or Abnormal Motor Behavior (Catatonia)
• C. Auditory Hallucinations
• D. Negativism

Answer: (A)

Derailment and tangentiality reflect disorganized thinking in speech. When thoughts are disorganized, the speaker may rapidly jump from one topic to another (derailment), or respond in ways that are off-topic and do not address the question or point at hand (tangentiality). This breakdown in the logical flow of thought is a hallmark of a formal thought disorder and is often labeled as disorganized thinking when describing psychotic symptoms.

Other options describe different phenomena: auditory hallucinations are hearing things that aren’t there; grossly disorganized or abnormal motor behavior (catatonia) involves motor symptoms rather than speech organization; negativism refers to resistance or oppositional behavior. Thus, the symptom described—speech that is tangential and derailled—fits disorganized thinking in speech.