Answer:
anterograde amnesia
Step-by-step explanation:
Anterograde amnesia is considered a medical condition that relates to amnesia. In other words, it is a form of amnesia that affects individuals by lowering their ability to keep or add new information in their memory.
Hence, in this case, following the symptoms explained in the question matching the symptoms of Anterograde Amnesia, it can be concluded that Gerald was experiencing ANTEROGRADE AMNESIA