Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 May 5;14:415. doi: 10.3389/fnins.2020.00415

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2020 Driver, Traat, Fasano and Wise.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

(A) Demonstrating definition of the PCNR parameter (see Eq. 1), with filtered curve (line) overlaid on original waveform (dots). PCNR is the ratio of the range of the curve Δv and the standard deviation of the residual (res). (B) Monte Carlo simulations, calculating PCNR from Gaussian noise waveforms. The 99th percentile corresponding to PCNR > 3.9, while the distribution remains unaffected by changes in noise level or number of timepoints (data not shown). (C) Example waveform which is not classed as pulsatile (PCNR ≤ 3.9) and (D) one that is (PCNR > 3.9).