Answer:
Jason has amnesia.
Step-by-step explanation:
Amnesia is a kind of memory loss. Some people cannot learn new things and this is known as anterograde amnesia. Some people forget events from their past and this is called as retrograde amnesia. Jason has retrograde amnesia because he has forgotten his past events. The causes for this disease are given below:
i) Brain injuries
ii) Certain drugs and alcohol
iii) Traumatic events