Processing of incongruous mental calculation problems: Evidence for an arithmetic N400 effect

Michael Niedeggen1,*, Frank Rösler2,*,
• Kerstin Jost2
  

Psychophysiology

Volume 36, Issue 3, pages 307–324, May 1999

http://onlinelibrary.wiley.com/doi/10.1017/S0048577299980149/abstract