Between the Heart and the Synapse is the debut studio album by American post-hardcore band the Receiving End of Sirens. It was released on April 16, 2005, via Triple Crown Records. The band signed to Triple Crown in October 2004, and began recording with producer Matt Squire later that month. Between the Heart and the Synapse uses elements of metal, progressive rock, and electronica, and has been compared to the works of Coheed and Cambria, Tool, and The Mars Volta.

The Receiving End of Sirens was an American rock band from Belchertown, Massachusetts, United States. Formed in 2003, the band broke up in 2008 then briefly reunited in 2010; a 2020 reunion tour was canceled.