When 2-year-old Jay is hospitalized for tonsillitis, he will drink only from a bottle, even though his mother states he has been drinking from a cup for 6 months. What is the defence mechanism shown by the child?

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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. 2993-2995
E6 Kaplan Sadock's Synopsis of Psychiatry-2022 (pp 1-3768 of 3768) p. 3346-3348
Practise the full AIIMS Raipur lecturer 2021
Attempt every question from this paper in a timed mock, then review the full solution for each one.