Figure 4
From: Basal forebrain activation controls contrast sensitivity in primary visual cortex
Examples of V1 LFP power spectral density (PSD) changes triggered by BF stim. The gray and black traces represent the PSD ± SEM before and after BF stimulation respectively. The different panels represent examples for the different observed patterns: (a) 40Hz γ-band peak (b) 70Hz γ-band peak (c) Both 40Hz and 70Hz γ-band peaks (d) Decrease in the low frequency (0–10Hz) band and broad increase in the γ-band. (e) Increase in both low and high frequency band, no peaks.