Neurodevelopmental Disorder
Neurodevelopmental disorders are a group of conditions that affect how the brain and nervous system develop, usually appearing in early childhood and potentially continuing into adulthood. These disorders can impact thinking, learning, communication, behavior, and movement, affecting millions of children and adults worldwide.
Table of contents
- What is a Neurodevelopmental Disorder?
- Types of Neurodevelopmental Disorders
- Causes and Risk Factors
- Signs and Symptoms
- Diagnosis
- Treatment and Management
- Living with Neurodevelopmental Disorders
- Supporting Your Child
What is a Neurodevelopmental Disorder?
Neurodevelopmental disorders are a group of mental conditions that negatively affect the development of the nervous system (the brain and spinal cord). According to the American Psychiatric Association, these conditions generally appear in early childhood, usually before children start school, and can persist into adulthood[1][2].
These disorders can cause changes to thinking, feeling, language, and physical abilities like movement and coordination. They are multifaceted conditions characterized by impairments in cognition, communication, behavior, or motor skills resulting from abnormal brain development[1][3].
The key characteristic of all these disorders is that they negatively impact a person’s functioning in one or more areas of life, including personal, social, academic, or occupational domains, depending on the disorder and the challenges it has caused. All of these disorders and their levels of difficulty exist on a spectrum, and affected individuals can experience varying degrees of symptoms and challenges, despite having the same diagnosis[2].
Types of Neurodevelopmental Disorders
The DSM-5 classifies neurodevelopmental disorders into six main groups[2]:
- Intellectual disability (also known as general learning disability) affects the ability to learn, retain, or process information; to think critically or abstractly; and to solve problems[2]
- Communication disorders affect an individual’s ability to understand, detect, or use language and speech to engage in dialogue effectively with others[2]
- Autism spectrum disorder
- Attention deficit hyperactivity disorder (ADHD)
- Motor disorders affect physical movement and coordination
- Specific learning disorders, including conditions like dyslexia
Other neurodevelopmental disorders include Tourette syndrome and Down syndrome[3]. Often one disorder is accompanied by another[2].
Intellectual disability is the most common neurodevelopmental disorder, affecting about 6.5 million people in the United States and as many as 200 million people globally. About one in 36 children in the United States has been identified with autism spectrum disorder[5].
Causes and Risk Factors
The exact cause of neurodevelopmental disorders is unknown, but research has suggested that a combination of genetic and environmental factors may play a role[3][7].
Genetic factors play an important role in these disorders. A family history of neurodevelopmental disorders increases the chance of having such disorders. For example, if a parent has a diagnosis of autism, then there’s a higher chance that his or her child will have this condition as well[9].
Research has also shown that things related to or that occurred during pregnancy can be the cause of neurodevelopmental conditions, including:
- Low birth weight
- Early birth
- Fetal exposure to alcohol, drugs, or contaminants like lead[3][7]
- Infections, immune dysfunction, or trauma[9]
Certain abnormalities in the brain can result in neurodevelopmental disorders. These abnormalities can be structural (differences in the brain tissue itself) or functional (changes in brain activity)[9].
Signs and Symptoms
Each neurodevelopmental disorder presents with different symptoms and severity. It’s also important to note that symptoms will differ between individuals[3][7].
However, some common signs to look for in children and adolescents with neurodevelopmental disorders include:
- Delayed or impaired speech or language development
- Difficulties socializing or interacting with peers
- Impaired motor skills
- Inability to focus or concentrate
- Behavioral problems such as aggression, hyperactivity, or mood swings[3][7]
Children with neurodevelopmental disorders often experience more complex physical and behavioral challenges. They may struggle to learn new things or keep up with their peers. They may have trouble remembering information, understanding instructions, or completing tasks[9].
Diagnosis
Neurodevelopmental disorders can typically be diagnosed at any age, but early diagnosis is often key to getting the most effective treatment[3][7].
Currently, there are no biomarkers to diagnose neurodevelopmental disorders or to differentiate between them. These disorders are diagnosed based on behavior and developmental patterns observed by healthcare professionals[1].
If you notice any symptoms, it’s important to speak with your child’s pediatrician as soon as possible. A medical professional will be able to assess your child’s development and refer them for further tests if needed[3][7].
Treatment and Management
There is no cure for neurodevelopmental disorders, but there are treatments available to help children manage their symptoms[3][7].
These therapies typically involve a combination of:
The needs of children with neurodevelopmental disorders are typically varied. They may need pharmacological, educational, and psychotherapeutic support, as well as social and economic assistance[4].
For preschool-aged children (age 4-6 years) with conditions like ADHD, pediatricians should prescribe parenting programs and neurodevelopmental therapy as the first line of treatment, if available. Medication may be considered if this approach does not result in significant improvement[6].
Schools have a profound influence on children, families, and communities. School-based mental health services have the potential to bridge the gap between need and utilization by reaching children who would otherwise not have access to these services[10].
Applied Behavior Analysis (ABA) Therapy
Applied behavior analysis (ABA) is a type of therapy that focuses on teaching children new skills and behaviors to help them better manage their disorder. ABA therapy can help improve social, communication, and problem-solving skills in children with autism. It may also be used to help children with attention deficit hyperactivity disorder learn how to stay focused and organized[3][7].
Parenting Programs
Parenting skills training aims to enhance or support the parental role through education and training, thereby improving emotional and behavioral outcomes for children. Several systematic reviews have demonstrated the effectiveness of parenting skills training in reducing problems in children, as well as in reducing the risk of unintentional childhood injuries and improving the mental health of parents[10].
Educating your child about their condition is also an important part of treatment as it can help them understand how to live with and manage their disorder[3][7].
Treatment in Adulthood
Abnormalities in brain development, long thought to be irreversible in adults, have traditionally been assumed to underlie the neurological and psychiatric symptoms associated with neurodevelopmental disorders. Surprisingly, recent studies demonstrate that reversing the underlying molecular deficits can result in substantial improvements in function even if treatments are started in adulthood[9].
Findings in mouse models of neurodevelopmental disorders suggest that it is possible to reverse certain molecular, behavioral deficits associated with these disorders in adults by genetic or pharmacological manipulations. These studies open up a possibility that targeted pharmacological treatments in combination with regimes of training or rehabilitation might alleviate or reverse the symptoms of neurodevelopmental disorders even after the end of critical developmental periods[11].
Living with Neurodevelopmental Disorders
Living with a person with a neurodevelopmental disorder affects the entire family. Meeting the complex needs of a person with such a disorder can put families under a great deal of stress—emotional, financial, and sometimes even physical[12].
Neurodevelopmental conditions often come with co-occurring mental health challenges, including anxiety and depression due to social isolation, sensory overwhelm, or struggles with communication. They may also involve emotional regulation difficulties, making it harder to manage stress, frustration, or change[13].
These challenges aren’t inherent to the diagnosis itself—they often stem from navigating a world that isn’t designed for neurodivergent minds[13].
Daily Life Challenges
To stay healthy, people with disabilities need the same basic health care as everyone else. They need to eat well, exercise, get enough rest and plenty of water, and have complete access to care, including regular physical and dental check-ups[12].
It is important to find healthcare providers who are comfortable caring for people with neurodevelopmental disorders. Sometimes when people with disabilities have a behavioral change or behavioral issue, it may be because they have a medical problem they cannot describe. For this reason, it is important to find out if there is a physical problem before making changes in a person’s treatment or therapy[12].
Transitions
The transition from high school to adulthood can be especially challenging for a person with a neurodevelopmental disorder. There are many important, life-changing decisions to make, such as whether to go to college or a vocational school or whether to enter the workforce, and if so, how and where. It is important to begin thinking about this transition in childhood, so that educational transition plans are put in place—preferably by age 14, but no later than age 16[12].
Supporting Your Child
Children with neurodevelopmental disorders can be vulnerable to changes in routines. Extra planning and support may be needed to help your child cope with these changes[15].
Communication Strategies
Use language that is appropriate for your child’s level of understanding to explain what is happening. Share concrete, visual information in the form of stories, cartoons, or websites. For children who are non-vocal communicators (who cannot speak), make sure they have access to their communication system (such as pictures and visual boards, type-to-talk devices, tablet or smartphone apps) to ask questions and express their feelings[15].
Answer your child’s questions simply and honestly, providing essential, ‘need to know’ information. Let them know you want to make sure everyone is safe and healthy. Try to focus on what will happen today and tomorrow, rather than talking about what will happen in the more distant future[15].
Emotional Support
Acknowledge your child’s feelings, even if they do not express them out loud. Tell them you understand it must be very hard for them right now because they cannot see their friends and teachers, go to the places they like to visit, or do many of the things they like to do. Let them know you are going to help them during this time[15].
Be a positive role model for your child and help them to cope and stay calm. Set your child up for success by setting up a reward system, planning daily physical activity, and promoting good sleep. Watch for changes in your child’s behavior, as these could be signs that your child is becoming more stressed or anxious[15].
Managing Routines
Children are used to routines, such as going to school, therapies, coming home, and they like this structure and knowing what comes next. Since routines may change, it can make some children feel unsettled. Trying to keep some familiar routines along with new ones can help reduce overall stress. Consider making a visual schedule with pictures. This can help your child see what the day looks like and know what to expect[20].
Overall, neurodevelopmental disorders can be difficult for children and families, but early diagnosis and intervention can help[3][7].
