Memory of almost everyday since she was 8. Memory for everyday when she was 14. Instantaneous memories & her iq is average. Hyperthymestic syndrome (thymesis means memory in greek) Implicit memory - talk, walk but can"t put into words. Previous experiences aid in the performance of a task without conscious awareness of. Daniel tammet recalls pi to 22,514 digits these previous experiences. Sees #s as shapes & colors - visualizes #s in landscapes of shapes & colors. Reads off #s as he sees them. Had a seizure at 4 - brain cross-wiring doing something repeatedly reinforces motor neurons so much that it becomes automatic. Henry molaison (h. m. ) hippocampus removed never retained memory after incident. You draw star through mirror w/o looking at paper. 3-stage model of memory 3 memory types based on duration: Fragile information held in original sensory for a brief period. Sensory neurons respond to sensory stimuli > sending signals to brain for processing.