Supporting case studies/research

• What happened to patient K.F?

  In the 1970s, K.F was in a motorcycle accident, resulting in brain damage to his left occipital lobe. K.F's STM was damaged, but their LTM was normal. He remembered words better if presented visually as opposed to auditorally. Although his LTM is intact, his STM is not, which supports the MSM. However, he remembers words better if presented visually, which supports the WMM.
• What happened to patient H.M?

  In the 1940s, H.M had a lobotomy to correct epileptic seizures. After the surgery, H.M was no longer able to form new long-term memories for many years, he believed that he was 27 years old, and the year was 1953. H.M had kept his procedural memory but not his episodic memory.
• What research did Baddeley and Hitch do?

  They had supporting research in dual task studies. They believed that memory is not just one store, but multiple.

  1. 2 visual tasks = poorer performance, but 1 visual task and one verbal = no interruption.
  2. They focused on STM only and believed it was not a unitary store (like MSM).
  3. LTM as a more passive store that holds previously learned material for use by the STM when needed.