Power Spectrum Density and Shannon Entropy Methods Quantify Limbic Dysregulation using fMRI and NIRS

Power Spectrum Density and Shannon Entropy Methods Quantify Limbic Dysregulation using fMRI and NIRS

Using Welch's method, we calculated power spectrum density of the first derivative of the entire time series, which was then plotted in the logarithmic scale. Since the power spectrum follows the power law S(f)[proportional to]f+[beta], we used slope [beta] of the fitted line to quantify time-s...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:NeuroImage (Orlando, Fla.) Fla.), 2009-07, Vol.47, p.S169-S169
Hauptverfasser: Tolkunov, D, Rubin, D, Carlson, J, Greenberg, T, Mujica-Parodi, LR
Format: Artikel
Sprache:eng
Schlagworte:
Anxiety
Entropy
Medical imaging
Methods
Principal components analysis
Spectrum analysis
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Using Welch's method, we calculated power spectrum density of the first derivative of the entire time series, which was then plotted in the logarithmic scale. Since the power spectrum follows the power law S(f)[proportional to]f+[beta], we used slope [beta] of the fitted line to quantify time-series dynamics.
ISSN:1053-8119
1095-9572
DOI:10.1016/S1053-8119(09)71808-7