Spreading depolarizations have prolonged direct current shifts and are associated with poor outcome in brain trauma. - Hartings JA; Watanabe T; Bullock MR; Okonkwo DO; Fabricius M; Woitzik J; Dreier JP; Puccio A; Shutter LA; Pahl C; Strong AJ; Co-Operative Study on Brain Injury Depolarizations (Brain: A Journal of Neurology, 2011)