Hippocampus damage and resulting learning deficiencies are very interesting phenomena. They probably show how important high-level control of learning is in efficient memorization, particularly in memorization of regularities that are presented only few times (or just once, as in the case of episodic memories) and are successfully memorized by healthy people but not by people with damaged hippocampus. People with damaged hippocampus are still able to memorize regularities that pass sufficiently many times through their perception (which is how low-level subsystems probably learn normally). They can compensate for regularities that they can deliberatively recite, like text, but not whole episodic memories.
It shows a limitation of Hebbian learning, of balance between gathering information about regularity and applying it to reinforce the regularity, and of importance of high-level mechanism that is able to compensate for this property. This I think can be a useful observation for AGI design. -- Vladimir Nesov mailto:[EMAIL PROTECTED] ----- This list is sponsored by AGIRI: http://www.agiri.org/email To unsubscribe or change your options, please go to: http://v2.listbox.com/member/?member_id=8660244&id_secret=73897738-7ea5fd
