False sensory perception without external stimuli is called?

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E6 Robert Boland, Marcia L. Verduin - Kaplan and Sadock's Comprehensive Text of Psychiatry-Wolters Kluwer Health (2024) (pp 1-16525 of 16525) pp. 3815-3817, 3250-3252
E6 Medicine Macleod Clinical Examination 15e p. 372-374
Practise the full AIIMS Rishikesh & Jodhpur NO - 2017
Attempt every question from this paper in a timed mock, then review the full solution for each one.