 This finding (named "The Mozart effect") suggests that music and spatial reasoning are related psychologically (i.e., they may rely on some of the same underlying skills) and perhaps neurologically as well.However, there has been considerable controversy over this as later researchers have failed to reproduce the original findings of Rauscher (e.g.Steele, Bass & Crook, 1999), questioned both theory and methodology of the original study (Fudis & Lembesis 2004) and suggested that the enhancing effects of music in experiments have been simply due to an increased level of arousal (Thompson, Schellenberg & Husain, 2001).