Complex sentence: In a study that combined ungrammaticalities with wh-phrases, it was found that ungrammaticality alone produced a larger P600 than wh-phrases alone, which suggests that the two responses are not the same and, therefore, have different underlying processes.
Split into simpler sentences: In a study that combined ungrammaticalities with wh-phrases, it was found that ungrammaticality alone produced a larger P600 than wh-phrases alone. This suggests that the two responses are not the same and, therefore, have different underlying processes.