sentences:  He found that at slow tempo (one chord a second), 23.13% (SD 5.76%) of saccades were involved in vertical refixation compared with 5.05% (4.81%) in leftward refixation ("p" < 0.001).At fast tempo (two chords a second), the rates were 8.15% (SD 4.41%) for vertical refixation compared with 2.41% (2.37%) for leftward refixation ("p" = 0.011).These significant differences occurred even though recovery saccades were included in the counts for leftward refixations, effectively doubling their number.