KARDIA (“heart” in Greek) is a graphic user interface (GUI) designed for the analysis of cardiac interbeat interval (IBI) data. It was originally developed for the Human Psychophysiology research group in the University of Granada in Spain.

KARDIA was developed in Matlab programming language and runs on recent Matlab releases (2007 or later) on all supported operating systems (Mac OS X, Unix and Windows). KARDIA allows interactive importing and visualization of both IBI data an