This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
Psychogenic amnesia is characterized by -a) Antegrade amnesiab) Retrograde amnesiac) Both with confabulationd) Patchy impairment of personal memories 
Select and explain. 
A. c, B. d, C. bd, D. ac
C: bd
Answer: C: bd 
Explanation: Dissociative amnesia is characterized by retrograde amnesia. There is inability to recall personal events during circumscribed period which creates gaps in the individuals personal memory (Patchy memory loss).