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

. 2018 Sep 20;12:645. doi: 10.3389/fnins.2018.00645

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

Copyright © 2018 Eagleman, Vaughn, Drover, Drover, Cohen, Ouellette and MacIver.

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

Quantifying dynamical attractors before and after loss of response (LOR). (A) We created time-delayed embeddings (attractors) from 20 s continuous clips. A shape change from thicker, less-ellipsoidal attractors before LOR (red) to flatter, more ellipsoidal attractors after LOR (blue) was observed and is shown here for 6 patients. We quantified the difference in attractors using both correlation dimension and our ellipse radius ratio (ERR). (B) We did not observe a significant difference in correlation dimension in 3 dimensions, nor did we observe a significant difference in correlation dimension in 5 dimensions (C). (D) We did observe a significant difference in our ERR measure from before to after LOR (p = 0.04 corrected). The ^∗ indicates significant difference between pre-LOR and post-LOR measures at p < 0.05 corrected.