The ability to sense one's own heartbeat is a key dimension of , the sensing of internal bodily signals. Recent research has shown that heartbeat perception is causally linked to frontal brain activity, specifically delta oscillations. Studies from Nature suggest that enhancing these brain oscillations can actually suppress the accuracy of heartbeat detection.
: A basic heartbeat subsystem for high-availability Linux clusters. It manages scripts and IP address takeovers when a node goes down. WLC (Wireless LAN Controller) heartbeat 1