Types of Neurological Impairments
Neurological Impairments arise from differences in how the brain develops and functions. These conditions often appear early in life and may affect communication, attention, learning, and social behaviour.
The Autism Spectrum Disorder (ASD), Attention Deficit / Hyperactivity Disorder Epilepsy, Multiple Sclerosis, Parkinsons and Alzheimers are classified as Neurological Impairments.
These conditions are not the result of low intelligence but rather differences in how the brain processes information.
Many individuals with neurodevelopmental disabilities have average or above-average intelligence and thrive when supported in environments that recognise their unique learning styles and strengths.
Early screening, structured learning support, and family involvement make a significant difference in helping children and adults with Neurological conditions develop confidence and independence.
In this section we will unpack not only those needs, but the Service Providers, Organisations, Companies, Products, Educational and Health Care facilities and professionals that are available to assist. This is what you need to know:
What Are You Looking For?
1. Key Features of Neurological Impairments
2. Neurological Impairment Categories
3. Developmental Neurological Disorders
I. Autism Spectrum Disorder
II. Asperger Syndrome
III. ADD / ADHD
4. Acquired Neurological Disorders
i. Parkinson’s Disease
ii. Multiple Sclerosis (MS)
iii. Guillain-Barré Syndrome
5. Degenerative Neurological Disorders
i. Alzheimer’s Disease
1. Key Features of Neurological Impairments
Neurological impairments are characterised by conditions or disorders that affect the brain, spinal cord, or peripheral nervous system, impacting how the body and mind function. These impairments may influence movement, sensation, communication, cognition, behaviour, or emotional regulation, either individually or in combination.
Neurological conditions can be present at birth, develop through illness or injury, or emerge later in life due to degenerative diseases, trauma, infection, or stroke. The severity and progression vary widely—some individuals experience mild or intermittent challenges, while others may require ongoing or lifelong support.
Depending on the condition, a person may need assistance with mobility, coordination, memory, learning, speech, decision-making, or daily living activities. With early diagnosis, appropriate medical care, rehabilitation, assistive technology, and supportive environments, many people with neurological impairments are able to improve function, maintain independence, and participate meaningfully in family, work, and community life.
2. Neurological Impairment Categories
Neurological impairments refer to disorders that affect the brain, spinal cord, or nervous system —
impacting movement, coordination, sensation, communication, or cognitive processing.These conditions may be congenital (present at birth), acquired (after injury or illness), or progressive (worsening in time).
Please Note: According to South Africas updated framework conditions such as Down Syndrome, Cerebral Palsy, Dyslexia and Learning Difficulties are now classified as Intellectual disabilities.
Developmental neurological disorders occur when the brain or nervous system does not develop as expected during pregnancy, birth, or early childhood.
These conditions often affect a person’s ability to learn, move, communicate, and interact with others. The impact may be mild or significant, depending on which areas of the brain are affected.
Common examples include autism spectrum disorder, epilepsy, and developmental coordination disorder. In many cases, these disorders are lifelong, but with early diagnosis, specialised education, therapy, and consistent support, individuals can build essential skills, improve independence, and lead fulfilling lives. Family involvement and community inclusion are key to helping children and adults with developmental neurological disorders reach their full potential.
i. Autism Spectrum Disorder | ASD
Until recently, Autism was classified as an intellectual Impairment. Today, it is better understood to be a neuro-developmental disorder with overlapping intellectual disbility features, in some instances.
Autism is characterized by impaired social interaction, verbal and non-verbal communication, and restricted and repetitive behavior. Parents usually notice signs in the first two years of their child’s life. These signs often develop gradually. Some children with autism reach their developmental milestones at a normal pace and then regress.
While autism is often inherited, researchers suspect both environmental and genetic factors as causes. In rare cases, autism is associated with agents that cause birth defects
ii. Asperger Syndrome
Asperger syndrome (AS) is a developmental disorder characterized by significant difficulties in social interaction and nonverbal communication, along with restricted and repetitive patterns of behaviour and interests.
It is an autism spectrum disorder (ASD) and differs from other disorders by relatively normal language and intelligence. Although not required for diagnosis, physical clumsiness and unusual use of language are common. Symptoms usually begin before two years old and can last for a person’s entire life.
The exact cause of Asperger’s is unknown. While there is likely a genetic basis it has not been determined. Environmental factors are also believed to play a role. There is no single treatment, and the effectiveness of particular interventions is supported by only limited data.
Treatment is aimed at improving poor communication skills; obsessive or repetitive routines and physical clumsiness.
Treatment efforts include: social skills training; cognitive behavioural therapy; physical therapy; speech therapy; parenting training and medications for associated problems such as depression or anxiety. Most children improve as they grow up, but social and communication difficulties may persist.
iii. ADD/ADHD
Attention Deficit Hyperactivity Disorder (ADHD), is also known as Attention Deficit Disorder (ADD), though this is considered an outdated term.
It is a neuro-developmental disorder characterised by problems paying attention, excessive activity, or difficulty controlling behaviour which is not appropriate for a person’s age. These symptoms begin by age six to twelve and persist for more than six months.
ADHD is one of the most common childhood disorders and may result in poor school performance due to problems paying attention. Although many children have a good attention span for tasks they find interesting. The condition can vary from person to person.
Acquired neurological disorders develop after birth, often as a result of injury, illness, or environmental exposure. These conditions can occur suddenly — such as in stroke or traumatic brain injury — or develop over time due to factors like infections, tumours, or exposure to toxins.
The effects depend on the part of the nervous system that has been damaged and may include loss of movement, memory difficulties, changes in speech, or impaired coordination.
Recovery can vary widely: some people experience full or partial improvement, while others may need long-term care and rehabilitation.
With timely medical treatment, physical and occupational therapy, and emotional support, many individuals can adapt, regain function, and rebuild meaningful daily routines after neurological injury or illness.
i. Parkinsons Disease
Parkinson’s disease is a neurodegenerative disorder that affects the central nervous system. Characterized by impaired muscular coordination and tremors,
Parkinson’s disease is a chronic and progressive disease, affecting the part of the brain that controls the movement of muscles.
Parkinson’s is termed progressive because the symptoms worsen over time
Exactly what causes this disease is still not known, although many researchers suspect that it could be caused due to a combination of facts, such as: accelerated aging; hereditary predisposition; environmental toxins; and free radicals
The progress of the disease can either occur gradually, over time, or swiftly. While some people are able to function comparatively well, other people experience profound disability. Parkinson’s disease symptoms can vary from one moment to another as well as from one day to another, the reason for this variation of symptoms is still not known
ii. Multiple Sclerosis (MS)
Parkinson’s disease is a neurodegenerative disorder that affects the central nervous system. Characterized by impaired muscular coordination and tremors,
Parkinson’s disease is a chronic and progressive disease, affecting the part of the brain that controls the movement of muscles.
Parkinson’s is termed progressive because the symptoms worsen over time
Exactly what causes this disease is still not known, although many researchers suspect that it could be caused due to a combination of facts, such as: accelerated aging; hereditary predisposition; environmental toxins; and free radicals
The progress of the disease can either occur gradually, over time, or swiftly. While some people are able to function comparatively well, other people experience profound disability. Parkinson’s disease symptoms can vary from one moment to another as well as from one day to another, the reason for this variation of symptoms is still not known
iii. Guillain-Barré Syndrome
Guillain–Barré syndrome (GBS) is an autoimmune disease caused by the body’s immune system mistakenly attacking the peripheral nerves and damaging their myelin insulation. It starts with changes in sensation or pain, followed by muscle weakness beginning in the feet and hands.
The symptoms develop over a period of half a day to two weeks.
Various classifications exist, depending on the areas of weakness, results of nerve conduction studies, and the presence of antiganglioside antibodies.
It is classified as an acute polyneuropathy, but prompt treatment with supportive care, leads to good recovery in the majority of people.
Degenerative neurological disorders are characterised by the progressive loss of nerve cells and their functions over time.
This gradual decline affects how the body and brain communicate, leading to increasing difficulty with movement, memory, or other cognitive functions.
Conditions such as Alzheimer’s disease, Parkinson’s disease, multiple sclerosis, and motor neuron disease fall into this group.
Although most degenerative disorders currently have no cure, early detection and ongoing management can slow their progression and greatly enhance quality of life.
Advances in medicine, rehabilitation, and assistive technology — along with strong emotional and social support — help individuals maintain independence, dignity, and connection as they navigate these complex conditions.
i. Alzheimer’s Disease
Alzheimer’s disease (AD), also known as Alzheimer’s, accounts for 60% to 70% of cases of dementia. It is a chronic neurodegenerative disease that usually starts slowly and gets worse over time. It most often begins in people over 65 years of age, although 4% to 5% of cases are early-onset.
The cause of Alzheimer’s disease is not clear, but about 70% of the risk is believed to be genetic.
The most common early symptom is difficulty in remembering recent events (short-term memory loss). As the disease advances, symptoms can include: problems with language; disorientation (including easily getting lost); mood swings; loss of motivation; not managing self care and behavioural issues.
