deficits giving rise to SCT symptoms, and this is hardly the case. With the publication of DSM-IV in 1994, the disorder was labeled as ADHD, and was divided into three subtypes: predominantly inattentive, predominantly hyperactive-impulsive, and combined. Of the proposed SCT-specific symptoms discussed while developing the DSM-IV, only "forgetfulness" was included in the symptom list for ADHD-I, and no others were mentioned. However, several of the proposed SCT symptoms were included in the diagnosis of "ADHD, not otherwise specified". Prior to 2001, there were a total of four scientific journal articles specifically addressing symptoms of SCT. But then a researcher suggested that sluggish tempo symptoms (such as inconsistent alertness and orientation) were, in fact, adequate for the diagnosis of ADHD-I. Thus, he argued, their exclusion from DSM-IV was inappropriate. The research article and its accompanying commentary urging the undertaking of more research on SCT spurred the publication of over 30 scientific journal articles to date which specifically address symptoms of SCT. However, with the publication of DSM-5 in 2013, ADHD continues to be classified as predominantly inattentive, predominantly hyperactive-impulsive, and combined type and there continues to be no mention of SCT as a diagnosis or a diagnosis subtype anywhere in the manual. The diagnosis of "ADHD, not otherwise specified" also no longer includes any mention of SCT symptoms. Similarly, ICD-10, the medical diagnostic manual, has no diagnosis code for SCT. Although SCT is not recognized as a disorder at this point, researchers continue to debate its usefulness as a construct and its implications for further attention disorder research. Controversy Significant skepticism has been raised within the medical and scientific communities as to whether SCT, currently considered a "symptom cluster," actually exists as a distinct disorder. Dr. Allen Frances, an emeritus professor of psychiatry at Duke University, has commented "We're seeing a fad in evolution: Just as ADHD has been the diagnosis du jour for 15 years or so, this is the beginning of another. This is a public health experiment on millions of kids...I have no doubt there are kids who meet the criteria for this thing, but nothing is more irrelevant. The enthusiasts here are thinking of missed patients. What about the mislabeled kids who are called patients when there's nothing wrong with them? They are not considering what is happening in the real world." UCLA researcher and Journal of Abnormal Child Psychology editorial board member Steve S. Lee