Processing Extraction Settings

Extended Notes

Processing

Extraction: Flags and Settings

Flags

One Stroke Analysis: Combines all strokes in to one. In addition, it combines the first stroke's secondary submovement with consecutive strokes. (even if a higher velocity peak occurs)

NOTE: This option is not effective if the 'The entire trial is one stroke' option is set in the segmentation settings.

EXAMPLE: If a trial has 4 strokes (5 primary points and 4 submovement points), then the stroke pattern will be:

1. Original Segmentation Without One stroke analysis:

O X O X O X O X O

Stroke 1

Stroke 2

Stroke 3

Stroke 4

Primary

Secondary

Primary

Secondary

Primary

Secondary

Primary

Secondary

'O' represents the primary segmentation points

'X' represent the secondary submovement points.

2. New Segmentation With One stroke analysis:

O X O

Stroke 1

Stroke 2

Stroke 3

Stroke 4

Primary

Secondary

Primary

Secondary

Primary

Secondary

Primary

Secondary

NOTE1: The velocity peak is in the primary submovement of Stroke 3

NOTE2: Normalized jerk is only valid in a single stroke and not in combined strokes.

Advanced Settings

o Initial Part of stroke for departure of initial (s): The duration of the initial part of the stroke that is used to estimate the initial direction of the stroke.

EXAMPLE: If a stroke moves initially for 0.08 s leftward and then upward and the intial part <= 0.08 s leftward, then the initial direction will be about 1.5 radians.

o Maximum frequency of acceleration and deceleration: This value is used to determine the number of acceleration/deceleration peaks per stroke. It determines the level above which all the sampling points are taken as acceleration/deceleration points depending on whether the stroke is going up or down.

O	X	O	X	O	X	O	X	O
Stroke 1		Stroke 2		Stroke 3		Stroke 4
Primary	Secondary	Primary	Secondary	Primary	Secondary	Primary	Secondary