{"id":296,"date":"2025-08-13T15:50:33","date_gmt":"2025-08-13T10:20:33","guid":{"rendered":"https:\/\/www.najao.com\/learn\/?p=296"},"modified":"2026-01-26T15:14:01","modified_gmt":"2026-01-26T09:44:01","slug":"autism-spectrum-disorder","status":"publish","type":"post","link":"https:\/\/www.najao.com\/learn\/autism-spectrum-disorder\/","title":{"rendered":"Autism Spectrum Disorder: The Diversity Within Neurodiversity"},"content":{"rendered":"\n<p>Autism spectrum disorder (ASD) is a complex neurodevelopmental condition with some special characteristics, such as persistent challenges in social communication and interaction, together with restricted, repetitive patterns of behavior, interests, or activities<strong><sup>1<\/sup><\/strong>. It is termed a &#8220;spectrum&#8221; disorder because its manifestations in individuals vary widely, in terms of severity and presentation, which reflects a diverse range of strengths and challenges.<\/p>\n\n\n\n<p>ASD affects millions globally and its prevalence is only increasing. <a href=\"https:\/\/www.cdc.gov\/mmwr\/volumes\/74\/ss\/ss7402a1.htm\" target=\"_blank\" rel=\"noreferrer noopener\">A data<\/a> from the U.S. Centers for Disease Control and Prevention (CDC) indicate that ASD affects approximately 1 in 31 children (3.2%) aged 8 years in 2022. This rise is attributed partly to broader diagnostic criteria, increased awareness among professionals and parents leading to earlier identification<strong><sup>2<\/sup><\/strong>.<\/p>\n\n\n\n<p>It is now understood that ASD arises from a complex interplay between genetic predispositions, neurobiological differences, and environmental influences<strong><sup>3<\/sup><\/strong>. This understanding, along with the increasing recognition of ASD, necessitates an urgent need to direct comprehensive research, effective interventions, and inclusive societal frameworks.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Diagnostic criteria and clinical presentation<\/h2>\n\n\n\n<p>Currently, the diagnosis of ASD is behavioral, which relies on observation of an individual&#8217;s development and patterns of interaction, supplemented by reports from caregivers<strong><sup>4<\/sup><\/strong>. An ASD diagnosis requires persistent deficits in two core domains: social communication and interaction, and restricted, repetitive patterns of behavior, interests, or activities<strong><sup>5<\/sup><\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Deficits in social communication and interaction<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Difficulties with back-and-forth conversation, reduced sharing of interests or emotions, and challenges initiating or responding to social interactions<strong><sup>6, 7<\/sup><\/strong>.<\/li>\n\n\n\n<li>Poorly integrated verbal and nonverbal communication, atypical eye contact, and deficits in using or understanding gestures<strong><sup>8-10<\/sup><\/strong>.<\/li>\n\n\n\n<li>Difficulties adjusting behavior to social contexts, challenges in sharing imaginative play, and struggles forming or maintaining friendships<strong><sup>11, 12<\/sup><\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Restricted, repetitive patterns of behavior, interests, or activities<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stereotyped or repetitive behaviors, such as repetitive motor movements (e.g., hand flapping), repetitive use of objects (e.g., lining up toys), or repetitive speech (e.g., echolalia)<strong><sup>13, 14<\/sup><\/strong>.<\/li>\n\n\n\n<li>Extreme distress at small changes, difficulties with transitions, rigid thinking, or adherence to specific routines<strong><sup>15<\/sup><\/strong>.<\/li>\n\n\n\n<li>Highly restricted interests that are intense or unusual in focus, for example, an obsessive preoccupation with specific facts or objects<strong><sup>16<\/sup><\/strong>.<\/li>\n\n\n\n<li>Unusual responses to sensory input, such as indifference to temperature, adverse reactions to specific sounds or textures, or unusual visual fascinations<strong><sup>17, 18<\/sup><\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>For proper diagnosis of ASD, these symptoms must appear in early development, and cause clinically significant impairment in social, occupational, or other important areas of current functioning. Crucially, they should not be better explained by intellectual disability or global developmental delay.<\/p>\n\n\n\n<p>The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), released by the American Psychiatric Association (APA) in 2013, is used to diagnose mental disorders like ASD<strong><sup>19<\/sup><\/strong>. To capture the spectrum nature of ASD, the DSM-5 specifies <a href=\"https:\/\/www.autismspeaks.org\/levels-of-autism\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">three levels<\/a> of severity: Level 1 (\u201crequiring support\u201d), Level 2 (\u201crequiring substantial support\u201d), and Level 3 (\u201crequiring very substantial support\u201d).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Neurobiological and genetic landscape<\/h2>\n\n\n\n<p>The etiology of ASD is complex, as it stems from a confluence of genetic, neurobiological, and environmental factors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Genetic factors<\/h3>\n\n\n\n<p>ASD is a highly heritable condition, but its genetics are complex and don&#8217;t follow a simple inheritance pattern<strong><sup>20<\/sup><\/strong>. Studies on twins show that if one identical twin has ASD, there&#8217;s a very high chance (40-90%) that the other twin will as well<strong><sup>21<\/sup><\/strong>. Because identical twins share almost all of their genes, this suggests that genes play a big part.<\/p>\n\n\n\n<p>The high heritability of ASD doesn&#8217;t mean a single gene is responsible. Instead, over 1,000 genes are associated with ASD risk, many of which regulate brain development, neuronal function, and synaptic communication<strong><sup>22<\/sup><\/strong>. The condition often runs in families<strong><sup>23<\/sup><\/strong>. This indicates an inherited susceptibility.<\/p>\n\n\n\n<p>However, ASD is usually polygenic, meaning it involves the cumulative effect of many common genetic variations<strong><sup>24<\/sup><\/strong>. Only a small percentage of these cases are linked to rare gene mutations or chromosomal abnormalities<strong><sup>25<\/sup><\/strong>. So, the majority of risk comes from the interplay of numerous genes and environmental factors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Neurobiological basis<\/h3>\n\n\n\n<p>While no single brain abnormality defines ASD, research consistently points to differences in brain structure, function, and connectivity<strong><sup>26<\/sup><\/strong>.<\/p>\n\n\n\n<p>Studies often reveal that atypical functional connectivity in brain regions may be the reason behind difficulties with integrating information across different brain areas. This includes less communication between distant brain regions and more intense communication within localized areas. Some studies also indicate atypical brain growth trajectories in early life: accelerated brain growth in infancy followed by slower growth, particularly in areas like the frontal cortex and amygdala<strong><sup>27<\/sup><\/strong>. This might be the contributing factor behind issues with social cognition and emotional processing.<\/p>\n\n\n\n<p>In addition, genetic alterations in ASD are often found to be more distinct in the superficial layers of the cortex, which are involved in higher-order cognitive functions and interhemispheric communication<strong><sup>28<\/sup><\/strong>. Furthermore, many ASD-associated genes encode proteins critical for synaptic function, suggesting dysregulation in synaptic plasticity and development contributes to altered neural circuits<strong><sup>29<\/sup><\/strong>.<\/p>\n\n\n\n<p>Research also finds potential imbalances in neurotransmitter systems, such as glutamate (excitatory) and GABA (inhibitory)<strong><sup>30<\/sup><\/strong>. This has the potential to cause an excitatory-inhibitory imbalance in neural networks.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Environmental factors<\/h3>\n\n\n\n<p>Environmental factors aren&#8217;t direct causes of autism, but they can modify the risk for individuals who are already genetically susceptible.<\/p>\n\n\n\n<p>A number of factors during pregnancy and birth have been linked to an increased risk of ASD. These include advanced parental age, maternal health conditions during pregnancy, such as obesity, diabetes, and hypertension, as well as severe infections or inflammation<strong><sup>31-35<\/sup><\/strong>. Ongoing research is also exploring the impact of exposure to certain medications (like valproate and thalidomide) and environmental pollutants like traffic pollution and pesticides<strong><sup>36-38<\/sup><\/strong>.<\/p>\n\n\n\n<p>Additionally, perinatal factors, such as prematurity, low birth weight, and complications during birth like a lack of oxygen (hypoxia), have been associated with an elevated risk<strong><sup>39-41<\/sup><\/strong>.<\/p>\n\n\n\n<p>Finally, it is important to clarify that vaccines have been scientifically debunked as a cause of autism<strong><sup>42<\/sup><\/strong>. Decades of rigorous research have found absolutely no causal link between vaccines and ASD.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Interventions and support<\/h2>\n\n\n\n<p>Given the spectrum nature of ASD, interventions are highly individualized and typically involve a multidisciplinary approach<strong><sup>43<\/sup><\/strong>. However, early identification and intervention, ideally in toddlerhood, are crucial for improving outcomes<strong><sup>44<\/sup><\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Behavioral therapies<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Applied behavior analysis (ABA):<\/strong> ABA is an evidence-based behavioral intervention for ASD<strong><sup>45<\/sup><\/strong>. It focuses on breaking down skills into smaller steps, teaching them systematically, and using positive reinforcement to encourage desired behaviors while reducing challenging ones. ABA-based approaches encompass various strategies like Discrete Trial Training (DTT), Pivotal Response Treatment (PRT), and Early Start Denver Model (ESDM).<\/li>\n\n\n\n<li><strong>Speech and language therapy:<\/strong> It addresses communication deficits, including expressive and receptive language skills, as well as the social rules of language<strong><sup>46<\/sup><\/strong>. It may also introduce alternative communication methods if needed, such as the Picture Exchange Communication System (PECS).<\/li>\n\n\n\n<li><strong>Occupational therapy (OT):<\/strong> It helps individuals develop daily living skills, fine and gross motor skills, and addresses sensory processing differences<strong><sup>47<\/sup><\/strong>. The aim is to improve participation in everyday activities.<\/li>\n\n\n\n<li><strong>Social skills training:<\/strong> It teaches explicit social rules, nonverbal cues, and strategies for navigating social interactions<strong><sup>48<\/sup><\/strong>.<\/li>\n\n\n\n<li><strong>Parent-mediated interventions:<\/strong> It empowers parents to implement therapeutic strategies within the home environment<strong><sup>49<\/sup><\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Pharmacological treatments<\/h3>\n\n\n\n<p><a href=\"https:\/\/www.nichd.nih.gov\/health\/topics\/autism\/conditioninfo\/treatments\/medication-treatment\" target=\"_blank\" rel=\"noreferrer noopener\">No medication<\/a> cures ASD or its core symptoms directly. However, medications can manage co-occurring conditions and challenging behaviors, after considering benefits versus side effects, and are part of a broader, individualized plan.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Irritability and aggression:<\/strong> Antipsychotics like risperidone and aripiprazole are FDA-approved for irritability associated with ASD<strong><sup>50<\/sup><\/strong>.<\/li>\n\n\n\n<li><strong>Anxiety and depression:<\/strong> Selective serotonin reuptake inhibitors (SSRIs) may be prescribed for co-occurring anxiety or depression<strong><sup>51<\/sup><\/strong>.<\/li>\n\n\n\n<li><strong>ADHD symptoms:<\/strong> Attention-deficit\/hyperactivity disorder (ADHD) is frequently comorbid with ASD<strong><sup>52<\/sup><\/strong>. Stimulants may be used if ADHD symptoms, such as inattention, hyperactivity, and impulsiveness, are significant.<\/li>\n\n\n\n<li><strong>Seizures:<\/strong> Anticonvulsants such as valproate are used to manage seizures, which occur in a significant subset of individuals with ASD<strong><sup>53<\/sup><\/strong>.<\/li>\n\n\n\n<li><strong>Sleep disturbances:<\/strong> Melatonin or other sleep aids may address common sleep problems<strong><sup>54<\/sup><\/strong>.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">The neurodiversity movement and lifespan considerations<\/h2>\n\n\n\n<p>The <a href=\"https:\/\/www.autism.org.uk\/advice-and-guidance\/topics\/identity\/the-neurodiversity-movement\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">neurodiversity movement<\/a> is playing a significant role to reduce stigma around individuals with ASD, and foster accommodating environments. It advocates that neurological differences are natural variations of the human brain, rather than disorders that need to be &#8220;cured.&#8221; It advocates for autism &#8220;acceptance&#8221; and &#8220;inclusion&#8221; rather than solely &#8220;awareness,&#8221; emphasizing respect for the unique strengths, perspectives, and contributions of autistic individuals.<\/p>\n\n\n\n<p>There is a growing recognition of the needs of autistic adults, who face unique challenges that persist beyond childhood. Many, particularly women, receive a late diagnosis in adulthood after years of struggle<strong><sup>55<\/sup><\/strong>. These individuals often continue to face social and communication challenges that can affect their relationships and integration into the community.<\/p>\n\n\n\n<p>Despite having valuable skills, autistic adults frequently encounter significant employment barriers. This makes supported employment programs and job coaching crucial<strong><sup>56<\/sup><\/strong>.<\/p>\n\n\n\n<p>Mental health is another major concern, as co-occurring anxiety, depression, and OCD are highly prevalent and often worsened by social isolation and unmet needs<strong><sup>57<\/sup><\/strong>. Furthermore, challenges with executive function, such as planning a grocery list or managing a budget, and sensory sensitivities, like being overwhelmed by loud noises, can make it difficult for autistic individuals to live independently<strong><sup>58, 59<\/sup><\/strong>.<\/p>\n\n\n\n<p>In response to these issues, support for autistic adults increasingly focuses on tailored services. These include vocational training, social skills groups, mental health support, and advocacy for accommodations in both the workplace and daily life<strong><sup>48, 60-62<\/sup><\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Future directions: precision and integration<\/h2>\n\n\n\n<p>The field of ASD research is highly active. A key area of research involves the identification of reliable biomarkers, such as genetic, neurophysiological, metabolic, and eye-tracking patterns<strong><sup>63<\/sup><\/strong>. Such biomarkers can aid in early diagnosis, predict treatment response, and group people with ASD who have similar characteristics, into smaller, more uniform categories.<\/p>\n\n\n\n<p>Another major goal is moving towards a <a href=\"https:\/\/www.najao.com\/learn\/precision-medicine\/\" target=\"_blank\" rel=\"noreferrer noopener\">precision medicine<\/a> approach for ASD, which involves tailoring treatments based on an individual&#8217;s unique genetic profile, neurobiological characteristics, and symptom presentation<strong><sup>64<\/sup><\/strong>. Patient-derived induced pluripotent stem cells and brain organoids are proving invaluable as models for studying individual-specific cellular mechanisms and testing therapies<strong><sup>65<\/sup><\/strong>.<\/p>\n\n\n\n<p>To complement these advancements, continued advancements in neuroimaging techniques are a must to further elucidate brain structure, function, and connectivity differences in ASD<strong><sup>66<\/sup><\/strong>.<\/p>\n\n\n\n<p>Lastly, we shall see greater integration of diverse datasets\u2014<a href=\"https:\/\/www.najao.com\/learn\/multi-omics\/\" target=\"_blank\" rel=\"noreferrer noopener\">multi-omics<\/a>, neuroimaging, and behavioral\u2014using advanced <a href=\"https:\/\/www.najao.com\/learn\/artificial-intelligence-applications-in-healthcare\/\" target=\"_blank\" rel=\"noreferrer noopener\">artificial intelligence<\/a> and machine learning approaches to uncover deeper insights into ASD heterogeneity and underlying mechanisms<strong><sup>67<\/sup><\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Autism spectrum disorder remains a multifaceted and evolving area where the understanding of its diagnostic criteria, genetics, and neurobiology has progressed significantly. However, the journey to fully unravel its complexities and provide comprehensive, individualized support continues, offering considerable hope for enhancing the lives of autistic individuals and their families worldwide.<\/p>\n\n\n\n<!--nextpage-->\n\n\n\n<h2 class=\"wp-block-heading\">FAQs<\/h2>\n\n\n\n<h4 class=\"wp-block-heading\">1. Which screening tools are available for early autism identification, and how do they work?<\/h4>\n\n\n\n<p>The M-CHAT-R\/F is a common screening tool for early autism identification. It is a reliable, accessible questionnaire for caregivers, which, if needed, is followed by a professional interview. However, its accuracy relies on the caregiver&#8217;s observations and the consistency of the follow-up process.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. What challenges exist in accurately diagnosing autism, and why might misdiagnosis occur?<\/h4>\n\n\n\n<p>The symptoms of autism often overlap with those of other conditions, such as ADHD or anxiety, making it difficult to distinguish between them. The process is further complicated by varied professional expertise, as well as differences in how symptoms are interpreted across genders and cultures.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3. Do all autistic individuals have remarkable abilities (\u201csavant skills\u201d)?<\/h4>\n\n\n\n<p>Not all autistic individuals have remarkable abilities or savant skills. The idea that all autistic people are savants is a common misconception, often fueled by media portrayals. While some autistic individuals may have exceptional talents in areas like memory, mathematics, art, or music, the vast majority do not.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Reference<\/h2>\n\n\n\n<p>1. Lord, C., Elsabbagh, M., Baird, G., <em>et al<\/em>. (2018). Autism spectrum disorder.&nbsp;<em>The lancet<\/em>,&nbsp;<em>392<\/em>(10146), 508-520.<\/p>\n\n\n\n<p>2. Neggers, Y. H. (2014). Increasing prevalence, changes in diagnostic criteria, and nutritional risk factors for autism spectrum disorders.&nbsp;<em>International Scholarly Research Notices<\/em>,&nbsp;<em>2014<\/em>(1), 514026.<\/p>\n\n\n\n<p>3. Cheroni, C., Caporale, N., &amp; Testa, G. (2020). Autism spectrum disorder at the crossroad between genes and environment: contributions, convergences, and interactions in ASD developmental pathophysiology.&nbsp;<em>Molecular autism<\/em>,&nbsp;<em>11<\/em>(1), 69.<\/p>\n\n\n\n<p>4. McCarty, P., &amp; Frye, R. E. (2020, October). Early detection and diagnosis of autism spectrum disorder: Why is it so difficult?. In&nbsp;<em>Seminars in pediatric neurology<\/em>&nbsp;(Vol. 35, p. 100831). WB Saunders.<\/p>\n\n\n\n<p>5. Lord, C., Risi, S., Lambrecht, L., <em>et al<\/em>. (2000). The Autism Diagnostic Observation Schedule\u2013Generic: A Standard Measure of Social and Communication Deficits Associated with the Spectrum of Autism.&nbsp;<em>Journal of Autism and Developmental Disorders<\/em>,&nbsp;<em>30<\/em>(3).<\/p>\n\n\n\n<p>6. Paul, R., Orlovski, S. M., Marcinko, H. C., <em>et al<\/em>. (2009). Conversational behaviors in youth with high-functioning ASD and Asperger syndrome.&nbsp;<em>Journal of autism and developmental disorders<\/em>,&nbsp;<em>39<\/em>(1), 115-125.<\/p>\n\n\n\n<p>7. Schilbach, L. (2022). Autism and other disorders of social interaction: where we are and where to go from here.&nbsp;<em>European Archives of Psychiatry and Clinical Neuroscience<\/em>,&nbsp;<em>272<\/em>(2), 173-175.<\/p>\n\n\n\n<p>8. Khaledi, H., Aghaz, A., Mohammadi, A., <em>et al<\/em>. (2022). The relationship between communication skills, sensory difficulties, and anxiety in children with autism spectrum disorder.&nbsp;<em>Middle East Current Psychiatry<\/em>,&nbsp;<em>29<\/em>(1), 69.<\/p>\n\n\n\n<p>9. Senju, A., &amp; Johnson, M. H. (2009). Atypical eye contact in autism: models, mechanisms and development.&nbsp;<em>Neuroscience &amp; Biobehavioral Reviews<\/em>,&nbsp;<em>33<\/em>(8), 1204-1214.<\/p>\n\n\n\n<p>10. Ramos-Cabo, S., Vulchanov, V., &amp; Vulchanova, M. (2019). Gesture and language trajectories in early development: An overview from the autism spectrum disorder perspective.&nbsp;<em>Frontiers in psychology<\/em>,&nbsp;<em>10<\/em>, 442697.<\/p>\n\n\n\n<p>11. Williams, D. L., Siegel, M., &amp; Mazefsky, C. A. (2018). Problem behaviors in autism spectrum disorder: Association with verbal ability and adapting\/coping skills.&nbsp;<em>Journal of autism and developmental disorders<\/em>,&nbsp;<em>48<\/em>(11), 3668-3677.<\/p>\n\n\n\n<p>12. 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Heritability of autism spectrum disorders: a meta\u2010analysis of twin studies.&nbsp;<em>Journal of Child Psychology and Psychiatry<\/em>,&nbsp;<em>57<\/em>(5), 585-595.<\/p>\n\n\n\n<p>21. Zhang, Y., Liu, X., Guo, R., <em>et al<\/em>. (2021). Biological implications of genetic variations in autism spectrum disorders from genomics studies.&nbsp;<em>Bioscience Reports<\/em>,&nbsp;<em>41<\/em>(7), BSR20210593.<\/p>\n\n\n\n<p>22. Larsen, E., Menashe, I., Ziats, M. N., <em>et al<\/em>. (2016). A systematic variant annotation approach for ranking genes associated with autism spectrum disorders.&nbsp;<em>Molecular autism<\/em>,&nbsp;<em>7<\/em>(1), 44.<\/p>\n\n\n\n<p>23. Sandin, S., Lichtenstein, P., Kuja-Halkola, R., <em>et al<\/em>. (2014). THE FAMILIAL RISK OF AUTISM.&nbsp;<em>JAMA<\/em>,&nbsp;<em>311<\/em>(17), 1770.<\/p>\n\n\n\n<p>24. Hannon, E., Schendel, D., Ladd-Acosta, C., <em>et al<\/em>. (2018). Elevated polygenic burden for autism is associated with differential DNA methylation at birth.&nbsp;<em>Genome medicine<\/em>,&nbsp;<em>10<\/em>(1), 19.<\/p>\n\n\n\n<p>25. Marshall, C. R., Noor, A., Vincent, J. B., <em>et al<\/em>. (2008). Structural variation of chromosomes in autism spectrum disorder.&nbsp;<em>The American Journal of Human Genetics<\/em>,&nbsp;<em>82<\/em>(2), 477-488.<\/p>\n\n\n\n<p>26. Ray, S., Miller, M., Karalunas, S., <em>et al<\/em>. (2014). Structural and functional connectivity of the human brain in autism spectrum disorders and attention\u2010deficit\/hyperactivity disorder: A rich club\u2010organization study.&nbsp;<em>Human brain mapping<\/em>,&nbsp;<em>35<\/em>(12), 6032-6048.<\/p>\n\n\n\n<p>27. Maximo, J. O., Cadena, E. J., &amp; Kana, R. K. (2014). The implications of brain connectivity in the neuropsychology of autism.&nbsp;<em>Neuropsychology review<\/em>,&nbsp;<em>24<\/em>(1), 16-31.<\/p>\n\n\n\n<p>28. Holanda, M. V. F., Paiva, E. D. S., de Souza, L. N., <em>et al<\/em>. (2025). Neurobiological basis of autism spectrum disorder: mini review.&nbsp;<em>Frontiers in Psychology<\/em>,&nbsp;<em>16<\/em>, 1558081.<\/p>\n\n\n\n<p>29. Ebert, D. H., &amp; Greenberg, M. E. (2013). Activity-dependent neuronal signalling and autism spectrum disorder.&nbsp;<em>Nature<\/em>,&nbsp;<em>493<\/em>(7432), 327-337.<\/p>\n\n\n\n<p>30. El-Ansary, A., &amp; Al-Ayadhi, L. (2014). GABAergic\/glutamatergic imbalance relative to excessive neuroinflammation in autism spectrum disorders.&nbsp;<em>Journal of neuroinflammation<\/em>,&nbsp;<em>11<\/em>(1), 189.<\/p>\n\n\n\n<p>31. Parner, E. T., Baron-Cohen, S., Lauritsen, M. B., <em>et al<\/em>. (2012). Parental age and autism spectrum disorders.&nbsp;<em>Annals of epidemiology<\/em>,&nbsp;<em>22<\/em>(3), 143-150.<\/p>\n\n\n\n<p>32. Carter, S. A., Lin, J. C., Chow, T., <em>et al<\/em>. (2023). Maternal obesity, diabetes, preeclampsia, and asthma during pregnancy and likelihood of autism spectrum disorder with gastrointestinal disturbances in offspring.&nbsp;<em>Autism<\/em>,&nbsp;<em>27<\/em>(4), 916-926.<\/p>\n\n\n\n<p>33. Maher, G. M., O\u2019Keeffe, G. W., Kearney, P. M., <em>et al<\/em>. (2018). Association of hypertensive disorders of pregnancy with risk of neurodevelopmental disorders in offspring: a systematic review and meta-analysis.&nbsp;<em>JAMA psychiatry<\/em>,&nbsp;<em>75<\/em>(8), 809-819.<\/p>\n\n\n\n<p>34. Zerbo, O., Qian, Y., Yoshida, C., <em>et al<\/em>. (2015). Maternal infection during pregnancy and autism spectrum disorders.&nbsp;<em>Journal of autism and developmental disorders<\/em>,&nbsp;<em>45<\/em>(12), 4015-4025.<\/p>\n\n\n\n<p>35. Croen, L. A., Ames, J. L., Qian, Y., <em>et al<\/em>. (2024). 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Harel-Gadassi, A., Friedlander, E., Yaari, M., <em>et al<\/em>. (2018). Risk for ASD in Preterm Infants: A Three\u2010Year Follow\u2010Up Study.&nbsp;<em>Autism Research and Treatment<\/em>,&nbsp;<em>2018<\/em>(1), 8316212.<\/p>\n\n\n\n<p>40. Lampi, K. M., Lehtonen, L., Tran, P. L., <em>et al<\/em>. (2012). Risk of autism spectrum disorders in low birth weight and small for gestational age infants.&nbsp;<em>The Journal of pediatrics<\/em>,&nbsp;<em>161<\/em>(5), 830-836.<\/p>\n\n\n\n<p>41. Burstyn, I., Wang, X., Yasui, Y., <em>et al<\/em>. (2011). Autism spectrum disorders and fetal hypoxia in a population-based cohort: accounting for missing exposures via Estimation-Maximization algorithm.&nbsp;<em>BMC medical research methodology<\/em>,&nbsp;<em>11<\/em>(1), 2.<\/p>\n\n\n\n<p>42. Gabis, L. V., Attia, O. L., Goldman, M., <em>et al<\/em>. (2022). 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The role of speech and language therapist in autism spectrum disorders intervention\u2013an inclusive approach. In&nbsp;<em>Advances in speech-language Pathology<\/em>. IntechOpen.<\/p>\n\n\n\n<p>47. Bumin, G., Huri, M., Salar, S., <em>et al<\/em>. (2015). Occupational therapy in autism. In&nbsp;<em>Autism spectrum disorder-recent advances<\/em>. IntechOpen.<\/p>\n\n\n\n<p>48. Hotton, M., &amp; Coles, S. (2016). The effectiveness of social skills training groups for individuals with autism spectrum disorder.&nbsp;<em>Review Journal of Autism and Developmental Disorders<\/em>,&nbsp;<em>3<\/em>(1), 68-81.<\/p>\n\n\n\n<p>49. Conrad, C. E., Rimestad, M. L., Rohde, J. F., <em>et al<\/em>. (2021). Parent-mediated interventions for children and adolescents with autism spectrum disorders: A systematic review and meta-analysis.&nbsp;<em>Frontiers in psychiatry<\/em>,&nbsp;<em>12<\/em>, 773604.<\/p>\n\n\n\n<p>50. Choi, H., Kim, J. H., Yang, H. S., <em>et al<\/em>. (2024). Pharmacological and non-pharmacological interventions for irritability in autism spectrum disorder: a systematic review and meta-analysis with the GRADE assessment.&nbsp;<em>Molecular Autism<\/em>,&nbsp;<em>15<\/em>(1), 7.<\/p>\n\n\n\n<p>51. Nadeau, J., Sulkowski, M. L., Ung, D., <em>et al<\/em>. (2011). Treatment of comorbid anxiety and autism spectrum disorders.&nbsp;<em>Neuropsychiatry<\/em>,&nbsp;<em>1<\/em>(6), 567.<\/p>\n\n\n\n<p>52. Hours, C., Recasens, C., &amp; Baleyte, J. M. (2022). ASD and ADHD comorbidity: What are we talking about?.&nbsp;<em>Frontiers in psychiatry<\/em>,&nbsp;<em>13<\/em>, 837424.<\/p>\n\n\n\n<p>53. Davico, C., Canavese, C., Vittorini, R., <em>et al<\/em>. (2018). Anticonvulsants for psychiatric disorders in children and adolescents: a systematic review of their efficacy.&nbsp;<em>Frontiers in psychiatry<\/em>,&nbsp;<em>9<\/em>, 270.<\/p>\n\n\n\n<p>54. Deliens, G., Leproult, R., Schmitz, R., <em>et al<\/em>. (2015). Sleep disturbances in autism spectrum disorders.&nbsp;<em>Review Journal of Autism and Developmental Disorders<\/em>,&nbsp;<em>2<\/em>(4), 343-356.<\/p>\n\n\n\n<p>55. Leedham, A., Thompson, A. R., Smith, R., <em>et al<\/em>. (2020). \u2018I was exhausted trying to figure it out\u2019: The experiences of females receiving an autism diagnosis in middle to late adulthood.&nbsp;<em>Autism<\/em>,&nbsp;<em>24<\/em>(1), 135-146.<\/p>\n\n\n\n<p>56. Nicholas, D. B., &amp; Klag, M. (2020). Critical reflections on employment among autistic adults.&nbsp;<em>Autism in Adulthood<\/em>,&nbsp;<em>2<\/em>(4), 289-295.<\/p>\n\n\n\n<p>57. Accardo, A. L., Pontes, N. M., &amp; Pontes, M. C. (2022). Heightened Anxiety and Depression Among Autistic Adolescents with ADHD: Findings From the National Survey of Children\u2019s Health 2016\u20132019.&nbsp;<em>Journal of Autism and Developmental Disorders<\/em>, 1.<\/p>\n\n\n\n<p>58. St. John, T., Woods, S., Bode, T., <em>et al<\/em>. (2022). A review of executive functioning challenges and strengths in autistic adults.&nbsp;<em>The Clinical Neuropsychologist<\/em>,&nbsp;<em>36<\/em>(5), 1116-1147.<\/p>\n\n\n\n<p>59. Stein, L. I., Polido, J. C., Mailloux, Z., <em>et al<\/em>. (2011). Oral care and sensory sensitivities in children with autism spectrum disorders.&nbsp;<em>Special Care in Dentistry<\/em>,&nbsp;<em>31<\/em>(3), 102-110.<\/p>\n\n\n\n<p>60. Walsh, L., Lydon, S., &amp; Healy, O. (2014). Employment and vocational skills among individuals with autism spectrum disorder: Predictors, impact, and interventions.&nbsp;<em>Review Journal of Autism and Developmental Disorders<\/em>,&nbsp;<em>1<\/em>(4), 266-275.<\/p>\n\n\n\n<p>61. Lake, J. K., Perry, A., &amp; Lunsky, Y. (2014). Mental health services for individuals with high functioning autism spectrum disorder.&nbsp;<em>Autism research and treatment<\/em>,&nbsp;<em>2014<\/em>(1), 502420.<\/p>\n\n\n\n<p>62. Brown, K. R. (2017). Accommodations and support services for students with autism spectrum disorder (ASD): A national survey of disability resource providers.&nbsp;<em>Journal of Postsecondary Education and Disability<\/em>,&nbsp;<em>30<\/em>(2), 141-156.<\/p>\n\n\n\n<p>63. Jensen, A. R., Lane, A. L., Werner, B. A., <em>et al<\/em>. (2022). Modern biomarkers for autism spectrum disorder: future directions.&nbsp;<em>Molecular diagnosis &amp; therapy<\/em>,&nbsp;<em>26<\/em>(5), 483-495.<\/p>\n\n\n\n<p>64. Loth, E., Murphy, D. G., &amp; Spooren, W. (2016). Defining precision medicine approaches to autism spectrum disorders: concepts and challenges.&nbsp;<em>Frontiers in psychiatry<\/em>,&nbsp;<em>7<\/em>, 188.<\/p>\n\n\n\n<p>65. Ilieva, M., Svenningsen, \u00c5. F., Thorsen, M., <em>et al<\/em>. (2018). Psychiatry in a dish: stem cells and brain organoids modeling autism spectrum disorders.&nbsp;<em>Biological psychiatry<\/em>,&nbsp;<em>83<\/em>(7), 558-568.<\/p>\n\n\n\n<p>66. Anagnostou, E., &amp; Taylor, M. J. (2011). Review of neuroimaging in autism spectrum disorders: what have we learned and where we go from here.&nbsp;<em>Molecular autism<\/em>,&nbsp;<em>2<\/em>(1), 4.<\/p>\n\n\n\n<p>67. Yoon, J. H., Lee, H., Kwon, D., <em>et al<\/em>. (2024). Integrative approach of omics and imaging data to discover new insights for understanding brain diseases.&nbsp;<em>Brain Communications<\/em>,&nbsp;<em>6<\/em>(4), fcae265.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Autism Spectrum Disorder (ASD) is a complex neurodevelopmental condition characterized by persistent difficulties in social communication and interaction, with restricted, repetitive behaviors and interests. ASD varies widely in severity and presentation, affecting individuals across all backgrounds. Early intervention improves outcomes, but ASD is lifelong and requires personalized support.<\/p>\n","protected":false},"author":3,"featured_media":297,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,8,1],"tags":[],"coauthors":[10],"class_list":["post-296","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-genetics","category-healthcare","category-neuroscience"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Autism Spectrum Disorder: The Diversity Within Neurodiversity<\/title>\n<meta name=\"description\" content=\"Autism spectrum disorder offers persistent challenges in social communication, together with some restricted, repetitive patterns of activities.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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