Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
, 7, 691
eCollection

Maturational Delay in ADHD: Evidence From CPT

Affiliations

Maturational Delay in ADHD: Evidence From CPT

Itai Berger et al. Front Hum Neurosci.

Abstract

While data from behavioral, neuropsychological, and brain studies suggested that Attention-Deficit/Hyperactivity Disorder (ADHD) is related to a developmental lag that reduces with age, other studies have proposed that ADHD represents a deviant brain function. The present study used a cross-sectional approach to examine whether ADHD children show a developmental delay in cognitive performance measured by continuous performance test (CPT). We thus, compared six age groups of ADHD children (N = 559) and their unaffected peers (N = 365), aged 6-11, in four parameters of MOXO-CPT performance: Attention, Timing, Hyperactivity and Impulsivity. Results have shown that despite improvement in CPT performance with age, ADHD children continued to demonstrate impaired performance as compared to controls. In most parameters, CPT performance of ADHD children matched that of 1-3 years younger normal controls, with a delay most prominent in older children. However, in the Hyperactivity parameter, ADHD children's performance resembled that of much younger healthy children, with almost no evidence for a developmental catch up. This study suggests that while some cognitive functions develop slower but normally, other functions (e.g., inhibitory control) show a different trajectory.

Keywords: ADHD; CPT; delay; diagnosis; maturation; symptoms.

Figures

Figure 1
Figure 1
Definition of the time line (Target and non-target stimuli were presented for 500, 1000, or 3000 ms. Each stimulus was followed by a void period of the same duration. The stimulus remained on the screen for the full duration regardless the response. Distracting stimuli were not synchronized with target/non-target's onset and could be generated during target/non-target stimulus or during the void period).
Figure 2
Figure 2
Performance in four CPT parameters among ADHD children and control group.

Similar articles

See all similar articles

Cited by 8 articles

See all "Cited by" articles

References

    1. American Psychiatric Association. (1994). Diagnostic and Statistical Manual of Mental Disorders. 4th Edn Washington, DC: American Psychiatric Association
    1. American Psychiatric Association. (2000). Diagnostic and Statistical Manual of Mental Disorders Text Revision (DSM-IV-TR). 4th Edn-text revision. Washington, DC: American Psychiatric Association; 10.1176/appi.books.9780890423349 - DOI
    1. Barkley R. A. (1990). Attention Deficit Hyperactivity Disorder: A Handbook for Diagnosis and Treatment. New York, NY: Guilford Press
    1. Barkley R. A. (1991). The ecological validity of laboratory and analogue assessment methods of ADHD symptoms. J. Abnorm. Child. Psychol. 19, 149–178 10.1007/BF00909976 - DOI - PubMed
    1. Barkley R. A. (1997). Advancing age, declining ADHD. Am. J. Psychiatry 154, 1323–1325 - PubMed

LinkOut - more resources

Feedback