Do you know how To Send Data From The Arduino To MATLAB?
check it here: http://forum.electronicsforu.com/forum/technologies-work/the-brain-microcontrollers-microprocessors/development-boards/arduino/476-how-to-send-data-from-the-arduino-to-matlab
Arduino allows you to interface your computer with ANYTHING. If you get good enough with it, you could interface almost anything you can think of with everything else. If you really put the effort and all necessary components, you could probably program your whole kitchen to make your breakfast automatically. The internet is full of examples of people making crazy devices with it, from little toys for babies to accurate performance measurement devices for athletes.
Use the ArduinoIO from http://www.mathworks.com/matlabcentral/fileexchange/47057-arduinoio-zip, it is essentially a gateway host inside the arduino with MATLAB support object that traffics common arduino commands via MATLAB