Conversation so far:
When was Henry born?
Henry Molaison was born on February 26, 1926.
What happened to him as a child?
bicycle accident at the age of seven.
What resulted from the accident?
experienced intractable epilepsy.
How did epilepsy effect him?
He had partial seizures for many years, and then several tonic-clonic seizures following his 16th birthday.
Did he ever get any treatment?
Scoville localized Molaison's epilepsy to his left and right medial temporal lobes (MTLs) and suggested surgical resection of the MTLs as a treatment.
What other surgeries did he have?
Molaison's bilateral medial temporal lobe resection included the removal of the hippocampal formation and adjacent structures, including most of the amygdaloid complex and entorhinal cortex.
Did he ever get any better from the operations?
After the surgery, which was partially successful in its primary goal of controlling his epilepsy, Molaison developed severe anterograde amnesia.
What other problems were still occurring now?
According to some scientists, he was impaired in his ability to form new semantic knowledge.

Question: What type of impairments was he having?
Self-contained rewrite: What type of impairments was Molaison having?