Multi-store memory model

Information is transferred between these stores in a linear sequence.

The three main stores are the sensory memory, short-term memory (STM) and long-term memory (LTM).

Each of the memory stores differs in the way information is processed (encoding), how much information can be stored (capacity), and for how long (duration).

Enviromental input -> sensory memory -> short-term memory -> long-term memory

HM: Milner

Aim: \n The aim of this case study was to better understand the effects that the surgery had had on patient HM.

Procedure:

Psychometric testing: IQ testing was given to HM. \n Direct observation of his behaviour; \n Interviews with both HM and with family members. \n Cognitive testing: memory recall tests as well as learning tasks - such as reverse mirror drawing. \n Corkin later did an MRI to determine the extent of the damage done to HM's brain.

Findings:

HM could not acquire new episodic knowledge (memory for events) and he could not acquire new semantic knowledge (general knowledge about the world).