Anterograde amnesia is seen in : a) Head injuryb) Strokec) Spinal cord injury (Traumatic paraplegia)d) Alzheimer's disease
Causes of Amnesia :

Physical Causes (Both antegrade and retrograde) : Head trauma, Degenerative brain disorders (e.g. Alzheimer's disease), blockage of cerebral blood vessels (stroke), infectious diseases, chronic alcoholism (korsakoff syndrome).
Psychogenic (Dissociative) amnesia → Retrograde.
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