What is the name of the effect which causes one to skip information that feel familiar during learning due to the confusion of familiarity and knowledge?
Change blindness: failure to notice large changes to the visual scene .
If you are interested in familiarity change blindness I suggest this article .
 Simons, D. J., & Levin, D. T. (1997). Change blindness. Trends in cognitive sciences, 1(7), 261-267.
 Tovey, M., & Herdman, C. M. (2014). Seeing changes: How familiarity alters our perception of change. Visual Cognition, 22(2), 214-238.