p060fig02.07 Position-specific-forward and backward error gradients illustrate how associations can form in both the forward and backward directions in time before the list is completely learned.<BR>||  Error gradients: depend on list position.  # of responses vs list position: <TABLE border="1"><TR><TD><B>list beginning</b></td><TD>anticipatory errors</td><TD>forward in time</td></tr><TR><TD><B>list middle</b></td><TD>anticipatory and perseverative errors</td><TD>forward and backward in time</td></tr><TR><TD><B>list end</b></td><TD>perseverative errors</td><TD>backward in time</td></tr></table>