Multi store model

Multi store model

describes flow between three permanent storage systems of memory: the sensory register (SR), short-term memory (STM) and long-term memory (LTM).

Hm

Aim

To determine the extent of HM's memory deficiency

Longitudinal case study

An observational research method in which data is gathered for the same subjects repeatedly over a period of time; can extend over years or even decades

Procedure

Neurosurgeon, Dr. Scoville, performed a experimental surgery taking out most of the hippocampus and tissue from the medial temporal lobes; HM was 27

Results

Concluded that the hippocampus wasn't the site of memory storage, but the site where it turns short term to long term memories

Conclusion

-HM strongly affirms the idea of localization of function in the brain
-asserting that the function of organization of memory is localized in the hippocampus

Case studies of brain damage to the hippocampus such as the case of HM support the MSM as they provide evidence for there being two separate memory stores for STM and LTM. HM's LTM was intact, but he had no ability to update it i.e. to make new memories, which means that his STM was severely impacted.

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