You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is According to the Glasgow Coma Scale (GCS), a verbal score of 1 indicates: and explain in detail?
On trying to rouse the patient by asking a simple question, no response is given a score of 1 under the GCS scale. Ref: Teasdale G, Jennett B. Assessment of Coma and Impaired Consciousness. Lancet 1974, Pages 81-84; Teasdale G, Jennett B. Assessment and Prognosis of Coma after Head Injury. Acta Neurochir 1976, Pages 34, 45-55