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Parameterization of intraoperative human microelectrode recordings: Linking action potential morphology to brain anatomy

Fig 6

Spike similarity comparisons across recording sites.

Spike similarity is calculated by taking the dot product of two amplitude-normalized units over the outer limits of to . (A) Sample comparison of highly similar unit shapes with different raw amplitudes. (B) Sample comparison of two units with opposite polarity and a negative similarity score. (C) Sample comparison of two dissimilar unit shapes. A similarity score of 1 indicates identical shapes, -1 for identical inverted shapes, and 0 for completely dissimilar shapes.

doi: https://doi.org/10.1371/journal.pcbi.1013184.g006