14
DM00003 Rev D
SYSTEM
MANUAL
The Trackit M has two options for the Headbox cable (the Custom EEG Headbox and the Standard 10/20 EEG Headbox).
The Custom EEG Headbox utilizes the Headlines Electrode System. Each sensor lead in the Headlines system is color-
coordinated based on its location on the head, as shown on previous page.
Color
Sensor
Description
Orange
Temporal
Used for electrode placement in the temporal region, including on the
earlobes (4 leads)
All measurements are taken with respect to the Reference Sensor
Blue
Parasagittal
Used for electrode placement in the parasagittal region (5 leads)
All measurements are taken with respect to the Reference Sensor
Yellow
Midline
Used for electrode placement in the midline region (3 leads)
All measurements are taken with respect to the Reference Sensor
Must be on the head in order to initiate the impedance measurement
White
Reference
Used for common mode sensing
Should be placed between Cz and Pz along the midline.
Must be on the body for all measurements performed, since all
measurements are taken with respect to the Reference sensor
Green
Ground/Neutral
An “active ground” electrode that uses the Reference electrode to eliminate
noise on the body, and brings the Trackit M to a neutral potential with
respect to the body
Can be placed on either the forehead (Fpz) or the left or right mastoid
Is not a protective earth ground connection, and is protectively isolated from
earth ground.
Must be on the body for all measurements performed
Red
X1 - X8
Additional monopolar sensors that can be placed as needed and mapped in
software
Can be used for various bio-potential signals, and are all measured with
respect to the Reference sensor
Red and Black
D1 - D3
Differential Pair channels that can be used for floating differential sensors
such as the Ambu® Sleepmate CannuTherm and Sleepmate Respiratory Effort
Belt (not for use as EEG channels).
6.5 Understanding the Custom EEG Headbox
Understanding the Trackit M System Connections