HERA: Hemispheric Encoding/Retrieval Asymmetry (Tulving et al., 1994)

PET studies w/normal subjects show

• Left Hem. is critical to encoding into LTM

  • Lateral Prefrontal areas
  • all materials: verbal & nonverbal
  • Why? associating meaning with events

• Right Hem. is critical to retrieval from LTM

  • Lateral Prefrontal areas
  • all materials: verbal & nonverbal
• Why? memory requires reflection about self / personal experience

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