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 Dec 14;8:17885. doi: 10.1038/s41598-018-36327-x

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

© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Comparison between early night and late night spindles in healthy controls. Top panel shows the individual participant values for each of the selected spindle summary measures and how they change over the course of the night from the first to last cycle of sleep. The background colour indicates the mean value with fade out at 2 standard deviations. Notice that while the power of spindles (in ratio of spindle frequencies to its neighbours) increases across the night, the amplitude and incidence of individual spindles actually decreases while the duration and globality increase. All comparisons are significantly different from one another. The panels below the t-value topography of selected spindle measures and their statistical comparison; channels marked with a white ‘!’ are statistical different after correction for multiple comparisons.