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Part 4 : A First-Time fNIRS Experiment

Part 4 : A First-Time fNIRS Experiment. Simple Experiment The goal: setup a simple 4-source/4-detector montage on the motor cortex . Get good data!. Simple Experiment Open Folder: Experiments4x4_right_motor Read over NIRStar Manual!. Optode Montage/Array:. S 1. S 17. S 25.

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Part 4 : A First-Time fNIRS Experiment

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  1. Part 4: A First-Time fNIRSExperiment

  2. Simple Experiment The goal: setup a simple 4-source/4-detector montage on the motor cortex. Get good data!

  3. Simple Experiment Open Folder: Experiments\4x4_right_motor Read over NIRStar Manual!

  4. Optode Montage/Array:

  5. S 1 S 17 S 25 S 33 S 41 S 9 NIRx uses this simple powerpoint-based montage editor for defining new optode arrays (montages). The numbering and colors of the circles correspond with Brain Products EEG caps. S 26 S 42 S 2 S 18 S 34 S 10 S 27 S 43 S 3 S 19 S 35 S 11 S 28 S 44 S 4 S 20 S 36 S 12 S 29 S 45 S 5 S 21 S 37 S 13 S 30 S 46 S 22 S 38 S 6 S 14 S 23 S 39 S 7 S 31 S 47 S 15 S 8 S 32 S 48 S 24 S 40 S 16 D 1 D 17 D 25 D 9 D 26 D 2 D 18 D 10 D 27 D 3 D 19 D 11 D 28 D 4 D 20 D 12 D 29 D 5 D 21 D 13 D 30 D 22 D 6 D 14 D 23 D 7 D 31 D 15 D 8 D 32 D 24 D 16 E 1 E 2 E 3 E 4 E 5 E 6 E 7 E 8 E 9 E 10 E 11 E 12 E 13 E 14 E 15 E 16 E 17 E 18 E 19 E 20 E 21 E 22 E 23 E 24 E 25 E 26 E 27 E 28 E 29 E 30 E 31 E 32

  6. Sources 1-4 are pictured in Red, with numbering “S1”, …, “S4”. Detectors 1-4 are pictured in green, with numbering “D1”, …, “D4”. D 4 S 2 D 1 S 1 S 4 D 3 D 2 S 3 Channels of interest are indicated by a purple line drawn between sources and detectors.

  7. Pictured right is a “topolayout”. It is a 2D abstraction of the montage/array setup of the probes. Each number in the pair refers to a Source (S) or Detector (D) channel pair, which represents a data channel of interest. The numbering corresponds to S-D (e.g., 4-3 = the channel between source 4 and detector 3). Topolayout

  8. Probe Setup

  9. The Probe Setup Utility defines the 3D positions of the probes themselves, and the particular channels that will be analyzed later on during post-processing. Probe Setup

  10. Time for Subject Preparation!

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