“…Our study and others (Friedman et al, 1999; Skeel et al, 2003) indicate that this kind of reporting may not be accurate. Because of absent documentation, it is impossible to ascertain the degree to which the visual acuity of subjects differed across studies, or contributed to the marked variability in reports of age-related differences in P1 and N1, especially in terms of amplitude (Celesia and Daly, 1977; Ceponiene et al, 2008; Curran et al, 2001; Czigler and Balazs, 2005; De Sanctis et al, 2008; Diaz and Amenedo, 1998; Dustman et al, 1981; Dustman and Beck, 1966; Dustman and Snyder, 1981; Falkenstein et al, 2006; Finnigan et al, 2011; Kolev et al, 2006; Kutas et al, 1994; Yordanova et al, 2004; Zanto et al, 2010). 6 …”