Fig. 4: Analysis of alterations in layer-dependent spectral power after HYase treatment. | Communications Biology

Fig. 4: Analysis of alterations in layer-dependent spectral power after HYase treatment.

From: The extracellular matrix regulates cortical layer dynamics and cross-columnar frequency integration in the auditory cortex

Fig. 4

a Layer-dependent analysis of frequency components of evoked responses showed bimodal changes in the spectral power distribution mainly in infragranular layers. In both early and late infragranular layers, beta power showed a significant increase. b Standardized differences of evoked (green) and spontaneous (red) power spectra between untreated recordings and after HYase treatment expressed as t-values for each frequency bin (negative t-values indicate higher power after HYase injection). Standardization was based on sample means and standard errors of the mean across subjects (n = 8) and tapers (nt = 5). Significant differences for the beta range from 25 to 36 Hz for the evoked PSD in infragranular layer Vb are indicated with the green bar and were revealed by a point-by-point Students t-test comparison with a Benjamin Hochberg correction controlling for false discovery rates.

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