Psychotic vs Neurotic

Which of the following is considered the most fundamental distinguishing feature between psychotic and neurotic disorders?

A 35-year-old male presents to the emergency department claiming that the government is broadcasting messages directly into his brain through his dental fillings. He is convinced this is true despite evidence to the contrary. This symptom is characteristic of which type of disorder?

A patient with a diagnosis of panic disorder frequently experiences sudden, intense fear attacks and is aware that these attacks are disproportionate to any real threat. In contrast, a patient with schizophrenia believes they are being persecuted by aliens and is convinced of the reality of this threat. This difference primarily highlights the distinction in:

Which of the following clinical presentations is LEAST likely to be classified as a psychotic disorder?

The concept of 'ego-dystonic' symptoms is more commonly associated with neurotic disorders than psychotic disorders. Which of the following best describes an ego-dystonic symptom?