(1) | Kinesia score (KS): the number of keystrokes in 60 seconds |
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(2) | Akinesia time (AT): the cumulative time that the keys are depressed for longer than 17 ms |

(3) | Inco-ordination score (IS): a measure of rhythmicity, which corresponds to the variance of the time interval between keystrokes |

(4) | Dysmetria score (DS): a weighted index calculated using the number of incorrectly hit keys corrected for speed |