A disorder in which patient maintains a fixed posture without any movement is?

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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) p. 2340-2342
E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 336-338
E6 Kaplan Sadock's Synopsis of Psychiatry-2022 (pp 1-3768 of 3768) p. 1090-1092
Practise the full NIMHANS Nursing Officer - 2019
Attempt every question from this paper in a timed mock, then review the full solution for each one.