Individual Differences in Memory

  • Processing Speed and Capacity: different due to the speed at which they process information and their ability to stretch the capacity of their STM
  • Miller: magic number 7 – we can hold 7 plus or minus 2 items of information in STM
  • Chunking: grouping together connected items so that they can be processed or stored together as single concepts, increasing the capacity of STM
  • McDougall and Alloway (as above) support chunking
  • Digit Span: memory span and capacity of STM
  • Schema: file of information based on our past experiences
  • How we perceive an object or event is strongly influenced by our past experiences, knowledge gained, attitudes and beliefs
  • Reconstructive memory criticised for lacking ecological validity as it should be testing your prior knowledge, not knowledge learnt in a lab
  • Steyvers and Hemmer (2012): wanted to see if they could create a more ecologically valid study. Asked ppts what they would expect to see in 5 different scenes (kitchen, office, hotel etc.) and measured this against a control group who were asked to look at the scenes in pictures and describe it. When the study is asking about more realistic information memory recall is good
  • Episodic Memory: a memory of an event or significant moment in your life
  • Palombo (2012): conducted a survey of autobiographical memory assessing individual differences in naturalistic autobiographical memory. Considered the following:
  • Episodic
  • Semantic
  • Spatial: remembering way around an area after visiting
  • Prospective: imaging events in the future and picturing it clearly
  • Questionnaire contained 102 items, ppts scored on a 5 point Likert Scale
  • High/low score on episodic showed same high/low score on semantic, so we either have a good or poor memory recall, regardless of memory style
  • Found men scored higher on spatial memory

Individual Differences:

  • Dyslexia
  • Age
  • Gender
  • Episodic Memory
  • Schemas