Figure 6.  Left Panel: Percent correct choices on line orientation tests in sessions where line orientation alone was tested (Visual Only) and in sessions where line orientation and duration of the stimulus were tested (Visual Combined).  Also shown is the percent correct choices on duration tests in sessions where only stimulus duration was tested (Duration Only) and in sessions where stimulus duration and line orientation were tested (Duration Combined).  
Right Panel: Percent correct choices on spatial location tests in sessions where only location was tested (Spatial Only) and in sessions where spatial location and duration were tested (Spatial Combined).  Also shown is the percentage of correct choices on duration tests in session where only duration was tested (Duration Only) and in sessions where duration and spatial location were tested (Duration Combined).