{
  "x": {
    "Description": "Manufacturer-template coordinate on the local two-dimensional headband plane.",
    "Units": "cm"
  },
  "y": {
    "Description": "Manufacturer-template coordinate on the local two-dimensional headband plane.",
    "Units": "cm"
  },
  "z": {
    "Description": "Not available; participant-specific 3D digitization was not performed.",
    "Units": "cm"
  },
  "description": {
    "Description": "Optode role and confirmed laterality."
  },
  "template_z": {
    "Description": "Defined as zero to represent the local plane of the two-dimensional manufacturer template; this is not a measured anatomical depth.",
    "Units": "cm"
  }
}