There were a number of unfortunate reporting errors in “Cognitive Therapy Helpful in Reducing Pseudoseizures, First Randomized Trial Finds,” (June 17), which featured a study that was published in the June 15 Neurology.
The name of the lead study author is Laura H. Goldstein, PhD, not Lynn H. Goldstein, as reported.
Due to an editing error, the Article in Brief box referred to a 2 percent reduction in seizures at the end of cognitive behavior therapy (CBT) treatment, while the story text reported a 20 percent reduction — both of which were incorrect. In fact, between baseline and end of treatment, there was a more than 80 percent reduction in median seizure frequency in those receiving CBT.
The number of people receiving cognitive behavior therapy was 33, not 34, as stated in our article, and investigators evaluated seizures in 66 patients, not 64, as stated in Neurology Today. Most patients in the CBT group received at least nine (and mostly 12) CBT sessions, not nine sessions as reported.
Standard medical care (SMC) did not involve psychoanalysis, as stated; rather, the authors defined SMC as sessions that were for patients supportive in nature and which included explanations about the psychological basis of their seizures and supervised withdrawal of antiepileptic drugs.
Finally, the writer misinterpreted data from Table 2 of the paper, which provided median seizure frequencies for those receiving CBT and SMC. The correct median seizure frequencies for the groups at baseline were 12 and 8 for the CBT and SMC groups respectively; 2 and 6.75, respectively, at end of treatment; and 1.5 and 5 respectively, at follow-up. The data the writer provided for the upper range of the seizures was in fact referring to the number of participants.
See the original study for the correct data: Goldstein LH, et al. Cognitive behavioral therapy for psychogenic nonepileptic seizures: A pilot RCT. Neurology 2010; 74: 1986-1994,
Neurology Today sincerely regrets these errors, and apologizes to the study authors for any problems these inaccuracies cause.