[OI]λ6300 line profiles for different types of photometric variability. Profiles of individual stars are shown in gray while the average in each group is shown in a thick black. From left to right, top to bottom: (panel a) stars that presented either spot-like or flux burst-dominated light curves in either CoRoT observation (likely observed at medium to low inclinations); (panel b) stars with spot-like light curves in both CoRoT observations; (panel c) stars with light curves dominated by stochastic flux bursts in both CoRoT observations; (panel d) stars that altered between spot-like and flux bursts between 2008 and 2011; (panel e) stars with complex (difficult to classify) light curves; (panel f) stars that presented either AA Tau-like or aperiodic extinction-dominated light curves in either CoRoT observation (likely observed at high inclinations); (panel g) stars that presented only AA Tau-like light curves in both CoRoT observations; (panel h) stars that presented only aperiodic extinction-dominated light curves in both CoRoT observations; (panel i) stars that alternated between AA Tau-like and aperiodic extinction between 2008 and 2011; and finally (panel j) an average of all [OI]λ6300 line profiles. Each profile was normalized by its maximum intensity before the average was taken.