Most severe form of seizures that involve loss of consciousness and convulsions
Medial temporal lobe
The part of the brain where most epilepsy happens
Anterograde amnesia
When you are unable to create new memories
Retrograde amnesia
When you are unable to retrieve memories from your past
Patient HM
Had 8cm of his MTL removed along with his hippocampus in an experimental lobotomy to cure his epilepsy that left him with anterograde amnesia
Semantic memories
Declarative memories that are pieces of factual information
Episodic memories
Declarative memories that are autobiographical facts about one's own life
HM's memories were temporally graded, meaning the further back you go the clearer the memories
Procedural memories
Implicit memories that is knowing how to do things, like muscle memory or the priming effect. HM could get better at motor tasks even though he had no memory of doing them