In this abstract we proposed a new method to assess whether changes in the power spectral density (PSD) function of local field potential (LFP) are correlated with the BOLD signal using a single parameter that describes the relative distribution of activity across frequencies (the power scale exponent). The correlation maps obtained using the scaling exponent exhibit strong, localized correlations at the locations near the electrodes in some scans, similar to those obtained from the LFP power time course method.
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