Experimental Psychology PSY 433

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Experimental PsychologyPSY 433

• Chapter 10
• Memory

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Amnesics

• Amnesia affects explicit long-term memory, not
  working memory or implicit memory.
• Explicit conscious recall of episodic
  information
• Implicit unconscious and automatic processing
• Impaired memory for details of ones past,
  ability to form new memories.
• Spared recognition, semantic knowledge (facts),
  procedural memory (skills), priming.

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2 x 2 Designs Revisited

• Warrington and Weiskrantz example
• Two IVs 2 (implicit vs explicit) x 2 (amnesic
  vs norm)
• Explicit task was to memorize 24 words then
  free recall
• Implicit task was to look at 24 words then try
  to identify a degraded version of each of the 24
  words.

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A
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B
These are the actual results Warrington and
Weiskrantz obtained
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C
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D
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Adding a Third IV

• 2 (test) x 2 (subj) x 2 (LOP task)
• Memory test (explicit free recall / implicit
  word fragment completion)
• Subject (amnesic / normal)
• L.O.P. Task (graphemic count vowels / semantic
  use word in a sentence)
• 3 potential main effects
• 3 potential 2-way interactions
• 1 potential 3-way (higher-order) interaction.

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