A young patient is admitted to hospital with acute psychosis. He wakes up and asks for his wife even while she is there in the same room right next to him. Upon pointing her out, he states that this is not his wife and someone else is masquerading as his wife. The most likely diagnosis is?

A young male patient is on 5 mg haloperidol for many days. However, recently for the last 4 days, he has an inner restlessness and urges to move. The most likely diagnosis is:

A 42-year-old man had a fall followed by one episode of vomiting. When brought to the casualty, he was awake and conscious but had unrelieved anterograde amnesia. Which of the following is the most likely cause?

An IT employee who has recently taken up the job is feeling guilty, hopeless and not able to concentrate on work. His symptoms started 3 years back when he started college. The most likely diagnosis is:

The marked area in red given in the sleep polysomnography is of,

Mutism and akinesis in a person who is aware of his surroundings and somewhat alert is best described as a feature of:

Which of the following is the test for immediate memory?

A 25 year old female has thoughts of cutting her fingers, she plans and imagines doing it but never actually does it. She says she is not having any guilt of having such thought. And also says the thoughts are distressing her and she is unable to control them. The thoughts vanish either by ending with a seizure or automatically subsides on its own. Which of the following is the cause?

A patient believes he is the most important person in the world and so his neighbours and family members are trying to harm him as they are jealous of him. His wife says otherwise and says he behaves like this only recently and before that he was working peacefully as a school teacher. He is most likely suffering from?