PSYC 325 Lecture Notes - Lecture 8: Agnosia, Anterior Communicating Artery, Frontal Lobe
11 Jun 2015
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27 years-old henry molaison (hm) has surgery to treat severe epilepsy. Anterograde amnesia: could not for new lasting memories. Still intact: most of his memories before the surgery. Could remember new things as long as he was working/attending to the information. Hm was the first clear demonstration that memory" is actually a system of brain functions. Could still work with new information: intact working memory system. Could still remember life before surgery: intact long-term memory system. Without medial temporal lobes, could not transfer from working to long-term memory: impaired consolidation process. Milner discovered that hm could form some types of lasting memories: Procedures: learned to trace objects while looking in a mirror. All this was done without conscious awareness. Suggests that there are two types of long-term memory. Remembering how to ride a bike nondeclarative (implicit) Remembering the first time you rode a bike declarative (explicit) Remembering who is the current prime minister declarative (explicit)
