Cortical standardized current density power mapping of N170 (face, word, and simultaneous stimuli).

<p>A). N170 source imaging estimation of face, simultaneous and word stimuli for controls (top) and BD patients (bottom). B). Average values of estimated standardized current density power at maximum peaks of activation for each condition at the N170 window. C) Average values of N170 estimated standardized current density power at left and right face fusiform area (FFA) in the temporo-occipital fusiform gyrus. Non-parametric Friedman analysis revealed that FFA sources in controls showed decreasing activation from face to word stimuli (F = 4.66, p = 0.01). This effect was not observed in BD (F = 1.65, p = 0.19). The BD group exhibited reduced activation of FFA from faces compared to controls in both hemispheres [left: F = 3.31, p = 0.03; right: F = 5.86, p = 0.01)]. Word stimuli elicited strong activation of the left FFA in BD compared to controls (F = 6.22, p = 0.01). SCDP: standardized current density power.