The ADHD Blog from ADHD Experts

  • What’s the Relationship Between Daytime Sleepiness and Cognitive Functioning in Adults with ADHD?

    Sleep disorders are one of the most commonly self-reported comorbidities of adults with ADHD, affecting 50 to 70 percent of them. A team of British researchers set out to see whether this association could be further confirmed with objective sleep measures, using cognitive function tests and electroencephalography (EEG). Measured as theta/beta ratio, EEG slowing is a widely used indicator in ADHD research. While it occurs normally in non-ADHD adults at the conclusion of a day, during the
    Read more
  • ADHD in College Students

    This article was selected by the APA as January's 'Member Course of the Month.' Authors: Aaron E. Winkler, MD. University of Maryland / Sheppard Pratt Psychiatry Residency Program. David W. Goodman, MD, FAPA. Assistant Professor of Psychiatry and Behavioral Sciences at the Johns Hopkins University School of Medicine; Director of the Adult Attention Deficit Disorder Center of Maryland ADHD continues to be a significant and difficult challenge in the collegiate world. The symptoms of
    Read more
  • ADHD is Underdiagnosed, to Varying Degrees, Among Adults of Different Ethnicities, Ages, and Education Levels in the U.S.

    A cohort study looked at over five million adults and over 850,000 children between the ages of five and eleven who received care at Kaiser Permanente Northern California during the ten-year period from the beginning of 2007 through the end of 2016. At any given time, KPNC serves roughly four million persons. It is representative of the population of the region, except for the highest and lowest income strata. Among adults rates of ADHD diagnosis rose from 0.43% to 0.96%. Among children
    Read more
  • How effective are ADHD medications in adults with Autism Spectrum Disorder (ASD)?

    Autism spectrum disorder (ASD) is frequently comorbid with ADHD. Among adults with ADHD, as many as half are reported to also have ASD. A Dutch team set out to answer two questions: Do adults with ADHD and comorbid ASD experience less effectiveness of pharmacological treatment for ADHD than adults with only ADHD? Do adults with ADHD and comorbid ASD experience different or more severe side effects of pharmacological treatment for ADHD than adults with only ADHD, as measured in
    Read more
  • Addressing the Challenge of Under-Diagnosed Adult ADHD

    There is a well-documented gap between the known prevalence of adult ADHD and rates of diagnosis and treatment. In Germany, epidemiological studies of nationally representative community samples have found prevalence rates ranging from 3.1% to 4.7%. Yet studies of publicly insured individuals age 18 to 69 years old report rates of diagnosed ADHD between 0.04% and 0.4%. So, even in a country with universal health insurance more than nine out of ten adults with ADHD go undiagnosed. Many
    Read more
  • Long-Acting Liquid Methylphenidate for Treating ADHD in Intellectually Capable Adults with Autism Spectrum Disorder

    A team from Harvard Medical School and Massachusetts General Hospital conducted a six-week open-label trial of liquid-formulation extended-release methylphenidate (MPH-ER) to treat ADHD in adults with high-functioning autism spectrum disorder (HF-ASD). ASD is a lifelong disorder with deficits in social communication and interaction and restricted, repetitive behaviors. Roughly half of those diagnosed with ASD also are diagnosed with ADHD. This was the first stimulant trial in adults with
    Read more
  • Stigma: Public Attitudes Towards Children and Adults with ADHD

    To gauge the extent of stigma towards persons with ADHD, a European research team hired a company specialized in market and social research to conduct a poll of some five thousand randomly selected Germans. Just over a thousand completed the interview, representing a response rate of only one in five. The team acknowledged, “Although non-responder bias has to be considered to be important, ethical considerations prohibited the collection of any detailed information on non-respondents.” The
    Read more
  • Are There Adverse Effects to Long-Term Treatment of ADHD with Methylphenidate?

    Methylphenidate (MPH) is one of the most widely-prescribed medications for children. Given that ADHD frequently persists over a large part of an individual’s lifespan, any side effects of medication initiated during childhood may well be compounded over time. With funding from the European Union, a recently released review of the evidence looked for possible adverse neurological and psychiatric outcomes. From the outset, the international team recognized a challenge: “ADHD severity may
    Read more
  • Evaluating Financial Decision-Making in Adults With ADHD

    A Dutch and German team compared the performance of 45 adults with ADHD and 51 normally developing controls on a battery of standardized tests and questionnaires designed to assess competence in financial decision-making (FDM). These were supplemented with neuropsychological tests, as well as evaluations of each participant’s personal financial situation. The two groups had roughly comparable demographic characteristics. There were no significant differences in age, gender balance, years
    Read more
  • How to Improve Driving Safety for Teens and Adults With ADHD

    Drivers with ADHD are far more likely to be involved in crashes, to be at fault in crashes, to be in severe crashes, and to be killed in crashes. The more severe the ADHD symptoms, the higher the risk. Moreover, ADHD is often accompanied by comorbid conditions such as oppositional-defiant disorder, depression, and anxiety that further increase the risk. What can be done to reduce this risk? A group of experts has offered the following consensus recommendations: Use stimulant
    Read more