Mismatch Negativity in Recent-Onset and Chronic Schizophrenia: A Current Source Density Analysis
Figure 3
Comparison of CSD in controls and schizophrenia.
Comparison of CSD in controls and schizophrenia during (A) Early MMN (110–160 ms), and (B) Late MMN (160–210 ms). Upper two rows display CSD magnitude with maximal activity in lighter colours. CSD has units of micro-Amperes per millimetre squared and has a maximum value of 0.021 µA/mm2 in the data illustrated. The medial surfaces are not illustrated as they showed no patterns of focal CSD activity. The lower two rows display clusters in which controls have greater CSD than patients. This is a statistical parameter map (SPM) of the probability that the two groups differ, thresholded at p<.001 (uncorrected); cluster size >1 cm3. There were no clusters in which patients had larger CSD than controls.