Traumatic brain injuries, which often cause types of amnesia alongside other symptoms, may be permanent, but in some cases, symptoms improve over time as the person recovers.

Types of Amnesia Amnesia is a substantial loss of memory, including diminished ability to remember the past, to create new memories, or both.

In 2018, Owen Rivers woke up in a hospital bed after a fentanyl overdose — and could no longer form new memories. It was a terrifying experience; he’d ask the same questions over and over — why he was ...

The type of amnesia used in most movies and TV shows (even as there are inaccuracies in how it is portrayed) is called retrograde amnesia, or the inability to remember past information.

Through Alzheimer’s screenings, clinicians often refer to a list of symptoms known as the seven A’s, which are anosognosia, agnosia, aphasia, apraxia, altered perception, amnesia and apathy.

Amnesia is uncommon on its own, yet it is a common symptom of conditions that involve brain damage or activity disruptions, as in Alzheimer’s disease.