Chapter 6 Applying The Gsn; Planning - Geodesic Sensor Net Technical Manual

chapter 6
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PPLYING THE
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CHAPTER
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his chapter describes the Geodesic Sensor Net application process, which includes:
• gathering needed supplies,
• preparing the electrolyte formulation,
• making head measurements,
• applying the GSN to the subject's head, and
• removing it.
Instructions for rinsing, disinfecting, and drying the Net are provided in Chapter 7,
"Rinsing and Disinfecting."
The instructions in this chapter apply to both the GSN 200 and HCGSN models,
unless otherwise noted. Applying either GSN model is not difficult, but some
instruction and practice are necessary. For best results, you should also review EGI's
Net application movie; for instructions on how to download it from EGI's website,
contact support@egi.com.
In general, we recommend that you practice applying a "dry" Net (that is, one
without electrolyte) on a colleague repeatedly, until you can achieve accurate and
evenly spaced applications consistently. For application instructions, see "Initial
Application" on page 66, "Initial Adjustments" on page 69, and "Verification and
Additional Adjustments" on page 71.

Planning

Ask the subject to arrive with freshly washed, but not wet, hair. Request that the
subject not use any hair products (gels or hair spray, for example) or any facial
foundation on the day of the session.
Geodesic Sensor Net Technical Manual
S-MAN-200-GSNR-001 • January 31, 2007
GSN
57