CHARACTERISTICS OF NEUROCOGNITIVE DISORDERS IN CHILDREN WITH TIC HYPERKINESIAS

SCIENCE AND INNOVATION INTERNATIONAL SCIENTIFIC JOURNAL VOLUME 4 ISSUE 11 NOVEMBER 2025 ISSN: 2181-3337 | SCIENTISTS.UZ 166 CHARACTERISTICS OF NEUROCOGNITIVE DISORDERS IN CHILDREN WITH TIC HYPERKINESIAS N.A. Ibragimova Tashkent State Medical University https://doi.org/10.5281/zenodo.17844345 Abstract. Tic hyperkinesias in children represent a neurodevelopmental condition in which repetitive motor or vocal tics are accompanied by a spectrum of cognitive and behavioral difficulties. While the visible tics often become the main reason for clinical consultation, the underlying neurocognitive impairments—such as problems with attention regulation, working memory, processing speed, and executive control—frequently exert a much stronger influence on academic performance and daily adaptation. These cognitive issues can remain unrecognized for long periods, leading to misconceptions about a child’s abilities, poor school progress, and increased emotional stress. This study aims to provide a comprehensive overview of the neurocognitive characteristics observed in children with tic hyperkinesias by examining 210 pediatric cases documented between 2020 and 2023. A combination of standardized neuropsychological tools, behavioral rating scales, and clinical evaluations was used to identify specific patterns of cognitive impairment. The analysis revealed that neurocognitive difficulties were present in nearly three-quarters of the children, with attention deficit emerging as the most frequent issue. Working memory problems, academic underperformance, and deficits in executive functioning were also common, particularly among children diagnosed with Tourette syndrome or early-onset chronic tics. Statistical findings demonstrated a significant association between tic severity and the depth of cognitive impairment, suggesting that the neurological mechanisms underlying tics may also influence higher-order cognitive processes. This highlights the importance of early neuropsychological screening and integrated clinical management. Without timely intervention, these cognitive challenges may hinder a child’s educational trajectory and socio-emotional development. Ultimately, the study underscores that tic hyperkinesias should be approached as conditions affecting multiple domains—not only motor or vocal expression but also cognitive performance, behavioral regulation, and overall quality of life. Recognizing these connections allows clinicians, educators, and families to develop more effective, interdisciplinary support strategies tailored to the unique needs of each child. Keywords: tic disorders, hyperkinesias, neurocognitive deficits, attention impairment, executive function, pediatric neurology, cognitive development. Introduction Tic disorders in childhood encompass a broad spectrum of neurodevelopmental conditions characterized by involuntary, rapid, and recurrent motor movements or vocalizations. Although many children experience transient tics that resolve spontaneously, a substantial number continue to exhibit symptoms that persist for months or years, sometimes progressing to chronic tic disorder or Tourette syndrome. These conditions often emerge between the ages of 5 and 10, and while the tic symptoms themselves can fluctuate in intensity, their broader impact on cognitive, emotional, and social functioning can be profound. In clinical practice, tic hyperkinesias are commonly approached as movement disorders. The visible nature of tics—eye blinking, grimacing, shoulder SCIENCE AND INNOVATION INTERNATIONAL SCIENTIFIC JOURNAL VOLUME 4 ISSUE 11 NOVEMBER 2025 ISSN: 2181-3337 | SCIENTISTS.UZ 167 jerks, throat clearing, or short vocal outbursts—naturally draws immediate attention. As a result, healthcare providers, educators, and even parents may unknowingly overlook the deeper neurocognitive challenges that frequently accompany these disorders. However, growing scientific evidence indicates that children with tics face a higher risk of difficulties in attention regulation, working memory, processing speed, impulse inhibition, and overall executive functioning. These cognitive disturbances are not secondary or accidental; rather, they are believed to stem from disruptions within the cortico-striatal-thalamo-cortical circuits — neural pathways implicated in both tic generation and cognitive control. Developmental immaturity, neurotransmitter imbalance, and genetic susceptibility further contribute to these vulnerabilities. Thus, tics and cognitive impairments share common neurological foundations, making it essential to evaluate them together rather than treating them as separate issues. For many children, neurocognitive problems remain silent obstacles. A student may appear inattentive in class, struggle with multi-step instructions, forget recently learned material, or have difficulty organizing tasks — all of which can be mistakenly attributed to laziness or behavioral disinterest. Over time, these misinterpretations may harm selfesteem, limit academic progress, and increase the risk of anxiety or depressive symptoms. Recognizing the broader cognitive picture is crucial not only for clinicians but also for educators and caregivers. Early identification of deficits allows families and specialists to provide appropriate support, whether through cognitive-behavioral therapy, school accommodations, targeted neuropsychological interventions, or parent-training programs. Since tic disorders often co-occur with ADHD, learning difficulties, and emotional disorders, understanding the full cognitive profile helps prevent misdiagnosis and ensures that treatment plans address the child’s genuine needs. Despite increasing interest in this topic, the neurocognitive characteristics of children with tic hyperkinesias remain insufficiently explored in many clinical settings. This study aims to fill that gap by examining a large pediatric sample and identifying the most common cognitive patterns associated with tic disorders. By integrating clinical observation with objective neuropsychological data, the research provides a clearer understanding of how tics influence cognitive development and academic functioning. Ultimately, appreciating the complexity of tic disorders ensures that children receive comprehensive care — not only to reduce tic frequency but also to strengthen the cognitive foundations necessary for learning, emotional resilience, and healthy social development. Materials and methods This study is based on a retrospective review of 210 children aged 6–14 diagnosed with tic hyperkinesias between 2020 and 2023 in three pediatric neurology clinics in Tashkent. Diagnostic classification followed DSM-5 and ICD-10 criteria, and children were grouped into transient tic disorder, chronic tic disorder, and Tourette syndrome. Neurocognitive functions were evaluated using a set of standardized instruments:  WISC-IV – to assess working memory, processing speed, and general intellectual abilities.  Digit Span Task – for short-term memory and attention span.  Stroop Test – to evaluate inhibitory control and selective attention.  BRIEF and Conners’ Rating Scales – completed by parents and teachers to capture everyday cognitive and behavioral difficulties. Only children with complete neuropsychological profiles were included. Demographic data (age, sex, age of onset, tic duration) were recorded from medical files. Statistical processing SCIENCE AND INNOVATION INTERNATIONAL SCIENTIFIC JOURNAL VOLUME 4 ISSUE 11 NOVEMBER 2025 ISSN: 2181-3337 | SCIENTISTS.UZ 168 was performed in SPSS v25, using descriptive statistics, Pearson correlation analysis, and logistic regression to identify connections between tic severity and neurocognitive impairment. A significance level of p < 0.05 was applied. Ethical approval was obtained from institutional review boards, with informed consent from parents and assent from children. All personal data were anonymized. Results The analysis of 210 pediatric cases demonstrated that neurocognitive impairments were highly prevalent among children diagnosed with tic hyperkinesias. A majority of participants showed deficits in at least one cognitive domain, with attention-related difficulties emerging as the most widespread problem. The findings are presented both numerically (Table 1) and visually (Figure 1). Overall, 72% of children exhibited measurable neurocognitive difficulties. Attention deficit was reported in 61%, making it the leading impairment across all tic categories. Working memory deficits were detected in 45% of children, while 38% showed signs of executive dysfunction. Academic challenges were noted in 42%, and language delays in 28% of cases. Table 1. Prevalence of Neurocognitive Impairments in Children with Tic Hyperkinesias Type of Impairment Prevalence (%) Attention deficit 61% Working memory deficit 45% Executive dysfunction 38% Academic difficulties 42% Language delay 28% Figure 1. Prevalence of Neurocognitive Impairments in Children with Tic Hyperkinesias Children diagnosed with Tourette syndrome demonstrated the highest rates of multidomain deficits, In many cases, multiple cognitive impairments were observed simultaneously. In milder forms of transient tics, however, cognitive deficits appeared less frequently and were generally less pronounced. Correlation analysis revealed a strong positive relationship (p < 0.01) between tic severity and cognitive impairment intensity. The earlier the onset of tics, the more pronounced the cognitive difficulties tended to be. Discussion SCIENCE AND INNOVATION INTERNATIONAL SCIENTIFIC JOURNAL VOLUME 4 ISSUE 11 NOVEMBER 2025 ISSN: 2181-3337 | SCIENTISTS.UZ 169 The results of this study reveal a clear and consistent pattern of neurocognitive impairment among children diagnosed with tic hyperkinesias. Attention-related difficulties were the most common finding, affecting more than half of the children, and this aligns with previous research suggesting that attentional regulation and inhibitory control share neural pathways with tic generation. These pathways, particularly the cortico-striatal circuits, are known to play a central role in both motor output and executive functioning, which may explain why children with more severe tics demonstrate deeper cognitive disturbances. Working memory deficits were also highly prevalent. Children with reduced working memory capacity often struggle with tasks that require holding and manipulating information, such as mental arithmetic, multi-step instructions, or academic activities that depend on sustained concentration. These findings highlight the need to consider cognitive load when evaluating academic performance in children with tic disorders. Difficulties that may appear as poor motivation or inattentiveness may, in fact, reflect underlying neurological constraints. Executive dysfunction—such as problems with planning, organization, impulse control, and flexible thinking—was another significant result. This pattern was especially pronounced in children with Tourette syndrome, who frequently exhibited impairments across multiple cognitive domains. This supports the idea that Tourette syndrome represents a more complex neurodevelopmental condition, not limited to motor or vocal tics but extending into higher-order cognitive capacities. Language delays, while less prevalent than attentional or executive issues, were still notable. These delays may stem from disrupted processing speed or difficulty shifting attention between auditory and visual stimuli. Over time, such delays can contribute to academic underperformance and communication difficulties, making early identification critical. When comparing tic subtypes, children with Tourette syndrome consistently showed the heaviest cognitive burden, often displaying several impairments simultaneously. By contrast, children with milder transient tics exhibited fewer and less severe cognitive difficulties, illustrating a gradient in which cognitive impairment intensifies alongside tic severity. The statistical correlations confirm this pattern: the stronger the tic severity, the deeper the cognitive impairment. This emphasizes the importance of evaluating children not only for observable tics but also for hidden cognitive vulnerabilities that may influence school performance, behavior, and daily functioning. Relying solely on visual symptoms risks missing the more impactful cognitive component of the disorder. From a clinical standpoint, these findings underscore the necessity of a multidisciplinary approach. Neurologists can address the tic component, but cognitive challenges require the involvement of psychologists, educators, and family-based support systems. Early neuropsychological screening should be incorporated into routine assessments to ensure that intervention plans are comprehensive and tailored to each child’s needs. Overall, the study reinforces the view that tic hyperkinesias are not simply motor conditions. They reflect a broader neurodevelopmental profile affecting attention, memory, executive functioning, and language. Recognizing these patterns earlier can significantly improve outcomes by allowing children to receive the appropriate cognitive, behavioral, and academic support. Conclusion The findings of this study make it clear that tic hyperkinesias in children are closely intertwined with a broad range of neurocognitive difficulties. While tics often attract the most attention in clinical and educational settings, the cognitive impairments identified here— particularly in attention, working memory, and executive functioning—may exert an even stronger influence on a child’s everyday performance and long-term development. These cognitive issues SCIENCE AND INNOVATION INTERNATIONAL SCIENTIFIC JOURNAL VOLUME 4 ISSUE 11 NOVEMBER 2025 ISSN: 2181-3337 | SCIENTISTS.UZ 170 are not incidental; they appear to be rooted in the same neural networks that underlie tic generation, which reinforces the need to view tic disorders as complex neurodevelopmental conditions rather than isolated motor phenomena. The high prevalence of attention-related deficits highlights the importance of monitoring cognitive functioning in children with tics from the earliest stages of diagnosis. Working memory weaknesses and executive dysfunction further illustrate that many children require structured cognitive support to navigate academic tasks effectively. Language delays, though less frequent, remain clinically relevant, as they may interfere with communication and learning when left unaddressed. The clear association between tic severity and the depth of cognitive impairment suggests that early detection is essential. Children with severe or early-onset tics should undergo comprehensive neuropsychological evaluation to ensure that subtle but significant cognitive vulnerabilities do not go unnoticed. Failure to identify these issues may lead to academic struggles, behavioral misunderstandings, and emotional stress, all of which can hinder a child's development. Given the multifaceted nature of tic hyperkinesias, an interdisciplinary approach is crucial. Neurologists, psychologists, educators, speech therapists, and families must work together to build individualized support systems. Cognitive-behavioral interventions, school accommodations, parental guidance, and targeted rehabilitation programs can significantly improve outcomes when applied in a coordinated manner. In conclusion, the study emphasizes that effective care for children with tic hyperkinesias goes far beyond managing motor or vocal tics. It requires recognizing and addressing the cognitive dimensions of the disorder. 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