anchor.diff:  PAL: paired associates learning
   
   
  +PAR-dr: paragraph delayed recall
  +
  +
   PC: Protein C
   
   
  
positive.code: SE: sleep efficiency
  
  
  ShaftW1: Shaft width combined
  
  
  
negative.code: VOS: velocity of sound
  
  
  VPWL-dr: delayed recall for visually presented word list
  
  
  Vrb: verbal
  
  
  