Comorbidity of ADHD and reading disability among clinic-referred children

Of a consecutive series of 115 boys diagnosed in a university outpatient clinic as ADHD, 39% also demonstrated a specific reading disability. Pure ADHD patients were compared with mixed ADHD + RD and normal controls on a battery of cognitive and attentional measures. The aim was to determine whether a distinct pattern of deficits would distinguish the groups. Both ADHD subgroups performed significantly worse than controls on measures of sequential memory and attentional tasks involving impulse control andplanful organization. Only ADHD+RD boys differed from controls on measures or rapid word naming and vocabulary. The reuslts are discussed within the framework of an automatic versus effortful information-processing model.

[1]  P. Holcomb,et al.  Effortful processing deficits in children with reading and/or attention disorders , 1986, Brain and Cognition.

[2]  M. Levine,et al.  The dimension of inattention among children with school problems. , 1982, Pediatrics.

[3]  G. August,et al.  Behavioral and cognitive subtypes of ADHD. , 1989, Journal of the American Academy of Child and Adolescent Psychiatry.

[4]  Rita G. Rudel,et al.  Naming of object-drawings by dyslexic and other learning disabled children , 1976, Brain and Language.

[5]  M. Konstantareas,et al.  Assessment of hyperactivity: isolating measures of high discriminant ability. , 1981, Journal of consulting and clinical psychology.

[6]  T. Moffitt,et al.  A comparison of 13-year-old boys with attention deficit and/or reading disorder on neuropsychological measures , 1989, Journal of abnormal child psychology.

[7]  R. Ulrich,et al.  Normative data on Revised Conners Parent and Teacher Rating Scales , 1978, Journal of abnormal child psychology.

[8]  P. Holcomb,et al.  PRESUMABLY INNATE AND ACQUIRED PROCESSES IN CHILDREN WITH ATTENTION AND/OR READING DISORDERS , 1986 .

[9]  L. Hasher,et al.  Automatic and effortful processes in memory. , 1979 .

[10]  J. Torgesen.  The Role of Nonspecific Factors in the Task Performance of Learning Disabled Children , 1977 .

[11]  J. Rapoport,et al.  Automatic and effortful processing in Attention Deficit/Hyperactivity Disorder , 1988, Journal of abnormal child psychology.

[12]  M. Wolf,et al.  Naming, reading, and the dyslexias: A longitudinal overview , 1984, Annals of dyslexia.

[13]  D. Cantwell,et al.  The Prevalence of Academic Underachievement in Hyperactive Children , 1978 .

[14]  B. Garfinkel,et al.  A computerized assessment battery for attention deficits. , 1983 .

[15]  M. Russell Harter,et al.  Separate verbal memory and naming deficits in attention deficit disorder and reading disability , 1987, Brain and Language.

[16]  N. Lambert,et al.  The prevalence of learning disabilities in a sample of children considered hyperactive , 1980, Journal of abnormal child psychology.

[17]  M. Drake.  Diagnostic and Statistical Manual of Mental Disorders (3rd ed. rev.) , 1988 .

[18]  D. Klein,et al.  Reading-disabled hyperactive children: A distinct subgroup of Attention Deficit Disorder with Hyperactivity? , 1984, Journal of abnormal child psychology.

[19]  P. Holcomb,et al.  Methylphenidate effects of cognitive style and reaction time in four groups of children , 1982, Psychiatry Research.

[20]  G. McCloskey.  Wide Range Achievement Test-Revised , 1987 .

[21]  T. Bryan.  Understanding learning disabilities , 1975 .

[22]  D. Share,et al.  Behaviour problems in specific reading retarded and general reading backward children: a longitudinal study. , 1986, Journal of child psychology and psychiatry, and allied disciplines.

[23]  L. J. Silverman,et al.  NUMBERS OF PUPILS WITH SPECIFIC LEARNING DISABILITIES IN LOCAL PUBLIC SCHOOLS IN THE UNITED STATES: SPRING 1970 , 1973, Annals of the New York Academy of Sciences.

[24]  S. Shapiro,et al.  The occurrence of behavior disorders in children: the interdependence of Attention Deficit Disorder and Conduct Disorder. , 1986, Journal of the American Academy of Child Psychiatry.

[25]  S. Hinshaw.  On the distinction between attentional deficits/hyperactivity and conduct problems/aggression in child psychopathology. , 1987, Psychological bulletin.

[26]  P. McMichael.  The hen or the egg? Which comes first--antisocial emotional disorders or reading disability? , 1979, The British journal of educational psychology.

[27]  G. Wolford,et al.  Differential use of partial information by good and poor readers , 1984 .

[28]  D. H. Stott.  Behaviour Disturbance and Failure to Learn: A Study of Cause and Effect , 1981 .