http://www.gwern.net/N-back%20FAQ#support
Besides Jaeggi 2008, there have been 2 or 3 studies supporting it to some degree, and 2 or 3 studies opposing it to some degree.
http://www.gwern.net/N-back%20FAQ#support
Besides Jaeggi 2008, there have been 2 or 3 studies supporting it to some degree, and 2 or 3 studies opposing it to some degree.