NeuroScript MovAlyzeR Help Send comments on this topic. 

Introduction <Help Menu>

Glossary Item Box

Introduction

This online help is a current, up-to-date version of application help. It includes topics for all product features for the MovAlyzeR, GripAlyzeR and ScriptAlyzeR programs. Online Help includes instructions on every page to inform the user of the relevance of each topic.

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Note for Microsoft Windows XP Service Pack 2 (SP2):

The help system uses ActiveX control to display the help contents menu (on the left). If you opened this web page using Microsoft Internet Explorer 6.0 Service Pack 1 (SP1), it is possible that the shortcut menu for the ActiveX control does not display. Microsoft has released a fix for this, and more details are available at http://support.microsoft.com/default.aspx?scid=kb;en-us;892049. We recommend users to either revert back to SP1 or wait until the next service pack is released.

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MovAlyzeR/ScriptAlyzeR

The MovAlyzeR and ScriptAlyzeR programs enable professionals in the medical, gerontological, rehabilitation, ergonomical, psychological, psychiatrical, physiotherapy, forensic, and educational fields, among others, to obtain immediate, accurate analysis of a person's handwriting, drawing, or other 2-dimensional movements, recorded via:

o Mouse (default after installing MovAlyzeR).

o Wintab-compliant digitizer (e.g., Wacom, Aiptek, .).

~MovAlyzeR/ScriptAlyzeR can be used with a flat-panel display-digitizer or a tablet PC. Use the default mapping of the entire digitizer onto the entire display.

                           

GripAlyzeR Package

o GripAlyzeR software allows recording and processing of 3 analog (differential) signals, using an analog-to-digital converter directly connected to the computer.

o NeuroScript's Gripper measures bimanual force coordination: Grip forces of the left and right hands and the load force while pulling two objects apart.

Gripper Description:

The Gripper setup consists of the following:

Grip Units

Device Interface Circuitry

The device interface contains two connector sockets, one to the upper grip (Channel 0) and other for the lower grip (Channel 2) and load (Channel 1). It also has the input for the power supply and a connector pin for a jump cable to connect the power supply to NIDaqpad power input.

Data Acquisition Pad

To record the analog signals, we use a NI-DAQPad-6020E for USB, 100 kS/s, 12-Bit, 16 Analog Input Multi-function DAQPad.

Power Supply

Both the interface circuitry and the NI DAQPad use a common 12V power supply. The power supply is connected to the gripper interface and a short jumper connects the supply to the NIDAQ pad power inlet.

Choose a DC adapter where the + is on the inside of the plug and the - on the outside of the plug, as follows:

Operation:

A typical Gripper task consists of pulling the upper and lower grip units apart while a magnet holds them together. To pull the units apart, apply pressure on the upper and lower grip sensors using the left and right thumbs, as shown in the diagrams above.

The Gripper consists of two units, each with a force sensor for the thumb. The upper and lower units are held together with a magnet of a programmable force.

The thumb force characterizes the grip force when holding the gripper units with all fingers on the opposite side as the thumb.

When instructed to pull the upper and lower units apart, a person with normal force coordination will gradually increase the pulling (or load) force on the upper gripper unit with the right hand while simultaneously increasing the grip force of the lower unit with the left hand.

A disturbance of the proportional increase of grip and load forces may signify a motor control disorder. Lower and Upper refer to the situation when the Gripper is placed vertically on the table. The situation changes trivially when the Gripper is used horizontally (laterally or sagitally).

Measurements:

Signal ID

Description of Digitizer Data

Description of Gripper data

X

Horizontal coordinate

Lower grip force (by left/non-dominant hand)

Y

Vertical coordinate

Upper grip force (by right/dominant hand)

Z

Axial Pen pressure

Upper load force