“…This has been found for relatively complex listening tasks, such as speech recognition under challenging listening conditions (e.g., Elliot, 1979;Nábelek and Robinson, 1982) and informational masking (Allen and Wightman, 1995;Hall et al, 2005;Oh et al, 2001;Wightman et al, 2003). It has also been demonstrated for relatively simple tasks, such as the detection of a tone in quiet or in masking noise (Allen and Wightman, 1994;Fior, 1972;Maxon and Hochberg, 1982), frequency discrimination (Jensen and Neff, 1993;Maxon and Hochberg, 1982), and intensity discrimination (Fior, 1972;Maxon and Hochberg, 1982; see also Jensen and Neff, 1993).…”