Objectives: To demonstrate that high IQ adults diagnosed with ADHD suffer from executive function (EF) impairments that: a) can be identified with a combination of standardized measures and self-report data; and b) occur more commonly in this group than in the general population. Method: 157 ADHD adults with IQ ≥ 120 were assessed with 8 normed measures of EF— 3 index scores from standardized tests of memory and cognitive abilities, and 5 subscales of a normed self-report measure of EF impairments in daily life. Results: 73% of subjects were significantly impaired on ≥ 5 of these 8 EF markers. On all 8 measures, incidence of these impairments was significantly greater than in the general population. Conclusion: High IQ adults with ADHD tend to suffer EF impairments that can be assessed with these measures; incidence of such impairments in this group is significantly higher than in the general population. (J. of Att. Dis. 2009; 13(2) 161-167)
Alderman, N., Burgess, P.W., Knight, C., & Henman, C. ( 2003). Ecological validity of a simplified version of the multiple errands shopping test. Journal of the International Neuropsychological Society, 9, 31-44.
2.
American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: Author .
3.
Antshel, K.M., Faraone, S.V., Maglione, K., Doyle, A., Fried, R., Seidman, L., et al. (2008). Temporal stability of ADHD in the high-IQ population: Results from the MGH longitudinal family studies of ADHD. Journal of the American Academy Child & Adolescent Psychiatry47, 817-825.
4.
Antshel, K.M., Faraone, S.V., Stallone, K., Nave, A., Kaufmann, F.A., Doyle, A., et al. (2007). Is attention deficit hyperactivity disorder a valid diagnosis in the presence of high IQ? Results from the MGH Longitudinal Family Studies of ADHD. Journal of Child Psychology and Psychiatry and Allied Disciplines, 48, 687-694.
5.
Baddeley, A. ( 2007). Working Memory, Thought and Action. New York, Oxford University Press.
6.
Barkley, R.A., Murphy, K.R., & Fischer, M. ( 2008). ADHD in adults: What the science says. New York: Guilford.
7.
Biederman, J., Petty, C., Fried, R., Fontanella, J., Doyle, A.E., Seidman, L.J., et al. (2006). Impact of psychometrically defined deficits of executive functioning in adults with attention deficit hyperactivity disorder . American Journal of Psychiatry163, 1730-1738.
8.
Brown, T.E. ( 1996). Brown attention deficit disorder scales for adolescents and adults. San Antonio, TX: The Psychological Corporation.
9.
Brown, T.E. ( 2000). Emerging Understandings of Attention Deficit Disorders and Comorbidities. In T. E. Brown (Ed.) Attention Deficit Disorders and Comorbidities in Children, Adolescents and Adults. Washington, D.C., American Psychiatric Press: 3-55.
10.
Brown, T.E. ( 2005). Attention deficit disorder: The unfocused mind in children and adults. New Haven, CT: Yale University Press.
11.
Brown, T.E. ( 2006). Executive functions and attention deficit hyperactivity disorder: Implications of two conflicting views. International Journal of Disability, Development and Education53, 35-46.
12.
Brown, T.E., & Quinlan, D.M. ( 1999). Executive function impairments in high IQ adults with ADHD. Presented at International Society for Research in Child and Adolescent Psychopathology, Barcelona, Spain.
13.
Burgess, P.W. ( 1997). Theory and Methodology in Executive Function Research . In P. Rabbit (Ed.) Methodology of Frontal and Executive Function. U.K.: East Sussex, Psychology Press Publishers: 81-116.
14.
Faraone, S., Biederman, J., Spencer, T., Mick, E., Murray, K., Petty, C., et al. (2006). Diagnosing adult attention deficit hyperactivity disorder: Are late onset and subthreshold diagnoses valid? American Journal of Psychiatry, 163, 1720-1729.
15.
Glaser, J., & Kihlstrom, J.F. (2005). Compensatory automaticity: Unconscious volition is not an oxymoron. In R. Hassin, J. Uleman, & J. A. Bargh (Eds.), The new unconscious (pp. 171-195). New York: Oxford University Press.
16.
Hassin, R.R. ( 2005). Nonconscious control and implicit working memory. In R. Hassin, J. Uleman, & J. A. Bargh (Eds.), The new unconscious (pp. 196-222). New York: Oxford University Press.
17.
Hervey, A.S., Epstein J.N., & Curry J.F. ( 2004). Neuropsychology of adults with attention-deficit/hyperactivity disorder: A meta-analytic review. Neuropsychology, 18, 485-503.
18.
Kaufman, A.S., & Lichtenberger, E.O. (2006). Assessing Adolescent and Adult Intelligence-Third Edition. Hoboken, N.J., John Wiley & Sons.
19.
Kooij, J.J.S., Boonstra A.M., Swinkels S.H., Bekker E.M., de Noord, I., & Buitelaar J.K. (2008). Reliability, validity and utility of instruments for self-report and informant report concerning symptoms of ADHD in adult patients. Journal of Attention Disorders , 11, 445-458.
20.
Miyake, A., & P. Shah, Eds. (1999). Models of Working Memory: Mechanisms of Active Maintenance and Executive Control. New York, Cambridge University Press
21.
Phelps, E. ( 2005). The interaction of emotion and cognition: The relationship between the human amygdala and cognitive awareness. In R. Hassin, J. Uleman, & J. A. Bargh (Eds.), The new unconscious (pp. 61-76). New York: Oxford University Press.
22.
Quinlan, D.M. ( 2000). Assessment of attention deficit hyperactivity disorder . In T. E. Brown (Ed.), Attention-deficit disorders and comorbidities in children, adolescents, and adults (pp. 455-508). Washington, DC: American Psychiatric Publishing.
23.
Quinlan, D.M., & T.E. Brown ( 2003). Assessment of short-term verbal memory impairments in adolescents and adults with ADHD. Journal of Attention Disorders6, 143-152.
24.
Rabbitt, P. ( 1997). Methodologies and Models in the Study of Executive Function . In P. Rabbit (Ed.) Methodology of Frontal and Executive Function. U.K.: East Sussex, Psychology Press Publishers: 1-38.
25.
Seidman, L.J., Doyle, A., Fried, R., Valera, E., Crum, K., & Matthews, L. ( 2004). Neuropsychological function in adults with attention-deficit/hyperactivity disorder. Psychiatric Clinics of North America27, 261-282.
26.
Shallice, T., & Burgess, P.W. ( 1991). Deficits in strategy application following frontal lobe damage in man. Brain, 114, 727-741.
27.
Stavro, G.M., Ettenhofer, M.L., & Nigg, J.T. ( 2007). Executive functions and adaptive functioning in young adult attention-deficit/ hyperactivity disorder. Journal of International Neuropsychological Society13, 324-334.
28.
Wechsler, D. ( 1997). WAIS III Administration and Scoring Manual. San Antonio, TX: The Psychological Corporation.
29.
Wechsler, D. ( 1997). Wechsler Memory Scale-Third Edition. San Antonio, TX: The Psychological Corporation.
