Pubmed (TDAH) du 25/01/26
1. Pozo-Rodríguez M, Cruz S, Conde-Pumpido-Zubizarreta S, Carracedo A, Tubío-Fungueiriño M, Fernández-Prieto M. A systematic review on the association between executive function and emotional regulation in autism, ADHD, and autism/ADHD. Neurosci Biobehav Rev. 2026; 183: 106570.
Executive function (EF) and emotion regulation (ER) have been proposed as transdiagnostic factors that contribute to the socio-emotional and behavioural difficulties observed in neurodevelopmental disorders, particularly autism and attention deficit/hyperactivity disorder (ADHD). Investigating potential differences in the association between EF and ER in autism, ADHD and autism/ADHD co-occurrence could be an important avenue to inform possible differential diagnosis. In this study, we present a systematic review examining the associations between EF and ER in autism, ADHD, and autism/ADHD. PubMed, Web of Science, PsycInfo, and Scopus datasets were searched for empirical articles, published between January 2013 and October 2024. Twenty-two articles were included. Of these, four analysed the relationship between EF and ER in autism, 16 in ADHD and two in autism/ADHD, demonstrating a clear focus on the study of these dimensions in ADHD over the past decade. Although age (i.e., children versus adults) and methodological (i.e., task-based versus report-based measures) differences may contribute to the variability of findings, the overall evidence suggests an association between EF difficulties and emotional dysregulation across conditions. Further research comparing autism, ADHD and autism/ADHD individuals is needed to draw clearer conclusions about how the association between EF and ER differs across these neurodevelopmental disorders, to inform more accurate diagnosis.
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2. Tahıllıoğlu A, Salatino-Oliveira A, Wagner F, Ercan ES, Rohde LA. Differentiating ADHD and oppositional defiant disorder through Synapsin III gene polymorphisms and neurocognitive profiles. Appl Neuropsychol Child. 2026: 1-11.
This study investigated the genetic and neurocognitive distinctions between the cases with Attention-Deficit/Hyperactivity Disorder (ADHD)-only, ADHD+ Oppositional Defiant Disorder (ODD), and typically developing controls (TDCs) by analyzing Synapsin (SYN) III gene polymorphisms and neurocognitive profiles. A total of 59 children with ADHD only, 42 children with ADHD+ODD, and 100 TDCs were evaluated through comprehensive genotyping of SYN III gene polymorphisms, a neurocognitive assessment using CNS Vital Signs test battery, an IQ evaluation, and a semi-structured psychiatric interview. Parents completed the Turgay ADHD Rating Scale IV. The presence of rs133946 C/G in the second haplotype was significantly less prevalent in ADHD+ODD cases (p < 0.001). The absence of C/G haplotype in SYN III rs133946 polymorphism was significantly associated with a heightened risk of ADHD+ODD (β = 2.49, OR = 12.14, p = 0.001) compared to ADHD-only. Neurocognitive analyses revealed that individuals having more rs133946 polymorphism C/G haplotype units exhibited higher Stroop Test-Simple Reaction Time scores (β = 49.50, p = 0.044), despite shared executive function and memory impairments across ADHD groups. However, there were no statistically significant direct differences between ADHD-only and ADHD+ODD groups across all neurocognitive test scores, although both clinical groups differed from TDCs in distinct ways across several tests. The findings suggest that the absence of C/G haplotype in the SYN III rs133946 polymorphism may serve as a genetic marker for ODD comorbidity in ADHD. Although the counter-intuitive association between the absence of C/G haplotype, faster reaction times, and ODD comorbidity may seem beneficial on the surface, it may be one of the potential underlying mechanisms of increased impulsivity or reduced inhibitory control in children with ADHD+ODD.
