TrueSatan (1709878) writes "Some, rare, individuals have almost perfect recall of events form their own lives while having only normal memory of less personal events. A well-known example of such a person is the actress Marilu Henner.
Brain scans have shown significant differences between the brains of these individuals and the norm...differences that are often linked to obsessive/compulsive disorders. A number of the individuals (certainly the majority and, arguably, all) in question do suffer from such disorders though not to such a degree as to significantly impair day to day life.
The research into these cases may lead to a better understanding of how memory works."
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