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

. 2012 Aug 8;7(8):e42059. doi: 10.1371/journal.pone.0042059

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

© 2012 Kumar et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

PMC Copyright notice

The simulation begins with. This amount of feedback inhibition did not qualitatively change the basic sleep-wake cycling (compare with Fig. 3). At time t1, the feedback inhibition was changed to 0.5. The system was no longer able to stay in a prolonged state of sleep; sleep bouts were continually disrupted by brief awakenings. At time t2,was set to 0, which destroyed the cycling. At time t3was reset to 0.1 while g_h was increased to 7 which restored the normal cycling.

Inline graphic — The simulation begins with. This amount of feedback inhibition did not qualitatively change the basic sleep-wake cycling (compare with Fig. 3). At time t1, the feedback inhibition was changed to 0.5. The system was no longer able to stay in a prolonged state of sleep; sleep bouts were continually disrupted by brief awakenings. At time t2,was set to 0, which destroyed the cycling. At time t3was reset to 0.1 while g_h was increased to 7 which restored the normal cycling.