Tutorial #3 general comments

[LeoVascelli]

• start with time-series of hippocampal data that shows some nice oscillation? A bit unclear wo a naive user where the PSD comes from / what frequency space is compared to time space, showing both might help.
• PSD is not a graphical representation, only if you plot it. It's the frequency representation.
• Maybe use more than two frequencies for the artificial time-series?
• remove "a" or "the" from "Generating the a complex sinusoid"
• Replace "Complex time series" with something else or just ommit complex. Only use complex for signals that have an imaginary and a real part. This issue should be fixed troughout the tutorial.
• the concep of oscillatory phase appears out of nowhere. Maybe introduce before when looking at time-series? Or introduce in Tutorial Is there going to be python 3 support? #2?
• "fourier transform followe by the inverse fourier transform without loosing information"?
• Say something about the resampling that is being performed.
• log(power) and log(Frequency) as axis labels. or actually log10(power)
• transform x-axis labels into Hz to help the reader?

[meyhaa]

• Overall
  • Most of the graphs/visualizations need to have their axes labeled.
• The FFT of a Complex Sinusoid
  • What is a complex sinusoid? Perhaps provide an external resource?
  • Complex Signal graph needs axes to be labeled
• Generating the PSD of electrophysiological data
  • ECoG is introduced for the first time as an acronym. It may need a brief explanation.
  • Links to sampling rate tutorial and Jack Schaedler’s interactive guide are both broken
  • More bolded phrases/terms in Slope of the PSD and 1/f power law section

Potential Key Terms for Glossary (list for you to narrow down/edit):
Power Spectral Density
Frequency Domain
Voltage Power
Spectrum
Fourier Transform
Complex Sinusoid (two-component sinusoid)
Phase Offset
ECoG
Complex Signal
Wavelengths (difference in power?)
1/f power law, power law distribution/pink noise
Welch’s Method
Oscillations
Aperiodic slope.