In generalized dissociative amnesia, people forget particular traumatic instances of their lives but not their entire lives.

Generalized Dissociative Amnesia

A psychological condition characterized by an inability to recall important personal information, usually of a traumatic or stressful nature, that is too extensive to be explained by ordinary forgetfulness.

Traumatic Instances

Events or experiences that cause psychological trauma, often resulting in long-lasting mental and emotional distress.