ArticleThe Eurasian journal of medicine2026
Differential P300 Signatures of Executive Dysfunction in Attention- Deficit/Hyperactivity Disorder and Borderline Intellectual Functioning.
Article in The Eurasian journal of medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundAttention-deficit/hyperactivity disorder (ADHD) and borderline intellectual functioning (BIF) are developmental conditions frequently characterized by executive dysfunction. However, the cognitive and neurophysiological differences between these conditions remain insufficiently defined. This study aimed to examine the behavioral and electrophysiological features of executive function in children with ADHD and BIF.
methodsChildren with ADHD and BIF, along with typically developing controls, completed computerized Stroop and Go/No-Go tasks while electroencephalography was recorded. Behavioral performance was evaluated using reaction times, accuracy indices, omission errors, and commission errors. Electrophysiological analyses focused on P300 event-related potential amplitude and latency at frontal (F3, F4) and central (C3) electrode sites.
resultsChildren with BIF demonstrated slower reaction times, increased omission errors, and prolonged P300 latency at the F4 electrode, indicating reduced processing speed and attentional inefficiency. In contrast, children with ADHD exhibited faster but more error-prone response patterns, characterized by increased commission errors and shorter P300 latency, consistent with impulsivity and impaired inhibitory control.
conclusionAttention-deficit/hyperactivity disorder and BIF share executive dysfunction but differ in underlying cognitive and neurophysiological profiles. Attention-deficit/hyperactivity disorder is primarily associated with disinhibition, whereas BIF is characterized by reduced processing speed and impaired sustained attention. Differences in P300 patterns may help distinguish between these conditions and support diagnosis and individualized intervention strategies. Cite this article as: Abanoz E, Korkmaz OE, Duru AD, Esin İS. Differential P300 signatures of executive dysfunction in attention-deficit/hyperactivity disorder and borderline intellectual functioning. Eurasian J Med. 2026, 58(4), 1539, doi: 10.5152/ eurasianjmed.2026.261539.
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