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Spectral analysis

JL Janna D Lendner

Last updated date: Mar 23, 2021 Views: 940 Forks: 0

original An abbreviated version of this protocol was published in eLife in Jul, 2020
An electrophysiological marker of arousal level in humans
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1. For how to calculate and plot the multitapered power spectrum, refer to the original paper on multitaper spectral analysis: 

Prerau et al. 2016. Sleep trough the lens of multitaper analysis (https://doi.org/10.1152/physiol.00062.2015)

They also provide online tutorials and MATLAB code here:

https://prerau.bwh.harvard.edu/multitaper/
 

2. To calculate the power also see the fieldtrip implementation here:

https://www.fieldtriptoolbox.org/faq/how_can_i_do_time-frequency_analysis_on_continuous_data/

You will find the code in the tutorial. Use "dpss" instead of "hanning".

 

3. Code for fits to the PSD is available here

- poly fit - see code here: https://github.com/voytekresearch/EISlope

- robustfit - see code here: https://github.com/jkosciessa/eBOSC

- model fit (FOOOF) - see code here: https://github.com/fooof-tools/fooof

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How to cite：
Readers should cite both the Bio-protocol preprint and the original research article where this protocol was used:
  1. Lendner, J(2021). Spectral analysis. Bio-protocol Preprint. bio-protocol.org/prep958.
  2. Lendner, J. D., Helfrich, R. F., Mander, B. A., Romundstad, L., Lin, J. J., Walker, M. P., Larsson, P. G. and Knight, R. T.(2020). An electrophysiological marker of arousal level in humans. eLife. DOI: 10.7554/eLife.55092

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