What's the difference between psychogenic and neurological causes of amnesia?

Psychogenic amnesia, also known as functional or dissociative amnesia, is a disorder characterized by abnormal memory functioning in the absence of structural brain damage or a known neurobiological cause; severe cases are very rare. It is defined by the presence of retrograde amnesia or the inability to retrieve stored memories and events leading up to the onset of amnesia and an absence of anterograde amnesia or the inability to form new long term memories.





An amnestic syndrome caused by brain injury or damage is known as neurological or organic amnesia.