Free Electrode Placement

Not every montage comes from an EEG net. Free-hand placement lets you put electrodes wherever you want on a subject’s scalp by clicking them into place, and then run a simulation from that configuration like any other montage.

Placement happens on the Simulator: you click in its 3-D pane, and a saved placement is a Free-hand source you can pick in a job row.

The free-hand placement editor for subject 101: E1+ and E1- placed on the head with their coordinates filled in the table Two positions placed. The selected row (E1-) is labelled in the pane, and its dot carries a ring.

Placing electrodes

  1. On the Simulator, press New placement. The editor opens with four rows already named E1+, E1-, E2+, E2- — the plan, before anything is clicked.
  2. Choose the subject and give the configuration a name.
  3. Select a row, then click the head in the pane. That row takes the point you clicked, in that subject’s own millimetres. Clicking again moves it rather than adding another.
  4. Select the next row and click again. Each row has its own colour, and each dot is labelled.