diff --git a/data_analysis/spectral_coherence/image0.png b/data_analysis/spectral_coherence/image0.png
index d0cc1ad..0c43e6f 100644
Binary files a/data_analysis/spectral_coherence/image0.png and b/data_analysis/spectral_coherence/image0.png differ
diff --git a/data_analysis/spectral_coherence/image1.png b/data_analysis/spectral_coherence/image1.png
index 4199aee..131ad82 100644
Binary files a/data_analysis/spectral_coherence/image1.png and b/data_analysis/spectral_coherence/image1.png differ
diff --git a/data_analysis/spectral_coherence/image2.png b/data_analysis/spectral_coherence/image2.png
index 2fec250..eb22993 100644
Binary files a/data_analysis/spectral_coherence/image2.png and b/data_analysis/spectral_coherence/image2.png differ
diff --git a/data_analysis/spectral_coherence/image3.png b/data_analysis/spectral_coherence/image3.png
new file mode 100644
index 0000000..f22f98e
Binary files /dev/null and b/data_analysis/spectral_coherence/image3.png differ