Attention deficit hyperactivity disorder in neurofibromatosis type 1: Evaluation with a continuous performance test

Rony Cohen*, Ayelet Halevy, Sharon Aharon, Avinoam Shuper

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Background and Purpose The objective of this study was to determine if the MOXO visual-and vocal-distractors-based continuous performance test distinguishes patients with attention deficit hyperactivity disorder (ADHD) and neurofibromatosis type 1 (NF1) from those without NF1. Methods Thirty-five patients (16 males; mean age 9.91 years) attending a multidisciplinary NF1 clinic completed the MOXO test. The findings were compared to 532 healthy age-matched standardized control subjects (285 males) without ADHD. Results The overall performance in the MOXO text was significantly worse in the NF1 group than in controls (p<0.01), but no group-specific pattern was identified. Impulsivity and hyperactivity were significantly more prominent in males than females (p<0.01). Compared to controls, the NF1 group exhibited significantly more failures to respond to target stimuli in the presence of visual distractors. Conclusions MOXO scores are abnormal in patients with NF1, but the test cannot differentiate between NF1 with ADHD characteristics and ADHD. The test highlights sex differences in ADHD characteristics in NF1. Overreactivity to visual distractors may form part of the attention deficit in NF1.

Original languageEnglish
Pages (from-to)153-157
Number of pages5
JournalJournal of Clinical Neurology (Korea)
Volume14
Issue number2
DOIs
StatePublished - Apr 2018

Keywords

  • Attention deficit hyperactivity disorder
  • Continuous performance test
  • MOXO
  • Neurofibromatosis type 1

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