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All of this told of harm done, of a drug that made a child depressed, lonely, and filled with a sense of inadequacy, and when researchers looked at whether Ritalin at least helped hyperactive children fare well academically, to get good grades and thus succeed as students, they found that it wasn’t so. Being able to focus intently on a math test, it turned out, didn’t translate into long-term academic achievement. This drug, Sroufe explained in 1973, enhances performance on “repetitive, routinized tasks that require sustained attention,” but “reasoning, problem solving and learning do not seem to be [positively] affected.”26 Five years later, Herbert Rie was much more negative. He reported that Ritalin did not produce any benefit on the students’ “vocabulary, reading, spelling, or math,” and hindered their ability to solve problems. “The reactions of the children strongly suggest a reduction in commitment of the sort that would seem critical for learning.”27 That same year, Russell Barkley at the Medical College of Wisconsin reviewed the relevant scientific literature and concluded “the major effect of stimulants appears to be an improvement in classroom manageability rather than academic performance.”28 Next it was James Swanson’s turn to weigh in. The fact that the drugs often left children “isolated, withdrawn and overfocused” could “impair rather than improve learning,” he said.29 Carol Whalen, a psychologist from the University of California at Irvine, noted in 1997 that “especially worrisome has been the suggestion that the unsalutary effects [of Ritalin] occur in the realm of complex, high-order cognitive functions such as flexible problem-solving or divergent thinking.”30 Finally, in 2002, Canadian investigators conducted a meta-analysis of the literature, reviewing fourteen studies involving 1,379 youths that had lasted at least three months, and they determined that there was “little evidence for improved academic performance.”31
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Robert Whitaker (Anatomy of an Epidemic: Magic Bullets, Psychiatric Drugs, and the Astonishing Rise of Mental Illness in America)