Neurodivergent Parenting Glossary

Autism Spectrum Disorder (ASD) is a neurodevelopmental condition characterised by differences in social communication, sensory processing, and behaviour. It is called a 'spectrum' because it presents very differently from person to person — ranging from highly verbal and academically capable to non-speaking and requiring significant daily support. Autism is not a disease or a defect; it is a different neurological wiring that shapes how a person perceives and interacts with the world.

ADHD is a neurodevelopmental condition characterised by persistent patterns of inattention, hyperactivity, and impulsivity that interfere with daily functioning. It is caused by differences in dopamine regulation and prefrontal cortex development. ADHD presents in three types: predominantly inattentive, predominantly hyperactive-impulsive, and combined. In girls, ADHD often presents as inattentiveness and emotional dysregulation rather than visible hyperactivity, leading to frequent underdiagnosis.

AuDHD is an informal term used to describe individuals who have both Autism Spectrum Disorder and ADHD. It is more common than previously recognised — research suggests that up to 50–70% of autistic individuals also meet criteria for ADHD. The combination creates a unique neurological profile where the two conditions can amplify each other, creating heightened sensory sensitivity, intense emotional responses, executive function challenges, and difficulty with both transitions and sustained attention.

Sensory Processing Disorder (SPD) is a condition in which the brain has difficulty receiving, organising, and responding to sensory information from the environment and the body. Children with SPD may be hypersensitive (over-responsive) to sensory input — reacting strongly to sounds, textures, lights, or smells that others barely notice — or hyposensitive (under-responsive), seeking intense sensory stimulation. SPD commonly co-occurs with autism and ADHD and significantly affects daily activities including eating, dressing, bathing, and school participation.

Pathological Demand Avoidance (PDA) is a profile on the autism spectrum characterised by an extreme anxiety-driven need to avoid everyday demands and expectations. Children with PDA resist and avoid the ordinary demands of life — not out of defiance, but because their nervous system experiences demands as threats. They often appear sociable on the surface but struggle with unpredictability, control, and autonomy. Traditional behaviour management approaches often worsen PDA; low-demand, collaborative strategies are more effective.

Executive function refers to a set of mental skills managed by the prefrontal cortex that include working memory, cognitive flexibility, planning, impulse control, task initiation, and emotional regulation. Children with autism and ADHD typically have significant executive function differences — not deficits in intelligence, but in the brain's ability to manage and direct itself. This explains why a child can be highly knowledgeable but struggle to start tasks, organise their belongings, or regulate their emotional responses.

Nervous system dysregulation occurs when the autonomic nervous system shifts out of its regulated, balanced state into either a hyperactivated (fight-or-flight) or hypoactivated (freeze/shutdown) state. In neurodivergent children, dysregulation is often triggered by sensory overload, unexpected changes, emotional stress, or biological factors like hunger and fatigue. Signs include meltdowns, emotional outbursts, withdrawal, aggression, or a complete inability to engage. Dysregulation is not a choice or a behaviour problem — it is a physiological state.

Co-regulation is the process by which a calm, regulated adult helps a dysregulated child return to a balanced nervous system state. The child's nervous system literally synchronises with the parent's through proximity, tone of voice, facial expression, and touch. This is why staying calm during a meltdown is not just good advice — it is neurologically essential. Children cannot self-regulate until they have experienced thousands of co-regulation interactions. Co-regulation is the foundation of all emotional development.

Polyvagal Theory, developed by Dr. Stephen Porges, describes how the vagus nerve governs three states of the autonomic nervous system: the ventral vagal state (safe, social, regulated), the sympathetic state (fight-or-flight), and the dorsal vagal state (freeze, shutdown). Neurodivergent children often have a narrower window of tolerance and shift more easily into sympathetic or dorsal states. Understanding polyvagal theory helps parents recognise which state their child is in and respond with the right type of support rather than discipline.

The Window of Tolerance is the optimal zone of nervous system arousal in which a person can function effectively, learn, and connect. When a child is within their window, they can engage, listen, and regulate their emotions. When they are pushed outside it — either into hyperarousal (panic, meltdown, aggression) or hypoarousal (shutdown, dissociation, withdrawal) — learning and connection become impossible. Neurodivergent children typically have a narrower window of tolerance than neurotypical peers, making environmental and sensory management critical.

A sensory diet is a personalised, scheduled programme of sensory activities designed to keep a child's nervous system in a regulated, ready-to-learn state throughout the day. It is not about food — it is about providing the right type and amount of sensory input at the right times. A sensory diet typically includes proprioceptive activities (heavy work like carrying, pushing, or climbing), vestibular activities (swinging, rocking), and tactile activities. It is ideally developed with an occupational therapist who specialises in sensory integration.

The Trigger Cycle describes how small daily stressors accumulate in a neurodivergent child's nervous system throughout the day until a final, seemingly minor trigger causes a major meltdown. Each small stressor — a sensory irritation, a transition, a social difficulty — adds to the nervous system's stress load. By the time the final trigger occurs, the child's system is already at capacity. Understanding the trigger cycle shifts the parent's focus from 'stopping the meltdown' to 'reducing the load before the meltdown starts.'

Strength-based parenting is an approach that identifies and builds upon a child's existing strengths, interests, and capabilities rather than focusing primarily on deficits and challenges. For neurodivergent children, this means recognising that traits like intense focus, pattern recognition, creativity, honesty, and deep empathy are genuine strengths — not symptoms to be managed. Strength-based parenting improves self-esteem, motivation, and long-term outcomes by helping children develop a positive identity around who they are, not who they are not.

The Briio Method is a whole-child, whole-family coaching framework created by Dr. Ananya Patnaik for parents of children with Autism and ADHD. The acronym stands for: Biology First (address physical foundations), Regulation (build nervous system capacity), Integration (connect all supports into one system), Independence (build toward autonomy), and Outcomes (measure meaningful progress). It integrates polyvagal theory, sensory integration, nutritional neuroscience, and attachment-based parenting into one cohesive approach that empowers parents as the primary integrators of their child's support ecosystem.

A neurodiversity-affirming approach recognises neurological differences — including autism, ADHD, dyslexia, and other conditions — as natural human variation rather than disorders to be fixed. It rejects the goal of making neurodivergent children appear or behave neurotypically, and instead focuses on understanding each child's unique profile, building on their strengths, accommodating their genuine needs, and supporting their wellbeing and autonomy. This approach is associated with better mental health outcomes and stronger parent-child relationships.

Positive Behaviour Support (PBS) is an evidence-based framework for understanding and addressing challenging behaviour by identifying its function — what need the behaviour is communicating — and teaching alternative, more effective ways to meet that need. PBS focuses on environmental modifications, skill-building, and proactive strategies rather than punishment. It is widely used in schools and homes for children with autism and ADHD and is grounded in the understanding that all behaviour is communication.

Emotional masking (also called camouflaging) is the process by which autistic children suppress, hide, or imitate neurotypical behaviour in order to fit in socially. This includes mimicking facial expressions, suppressing stimming, forcing eye contact, and scripting social interactions. While masking can help children navigate social environments in the short term, it is extremely energy-intensive and is strongly associated with burnout, anxiety, depression, and loss of self-identity. Children who mask heavily at school often 'unmask' at home, leading to what appears to be home-specific behaviour problems.

The gut-brain axis is the bidirectional communication network between the gastrointestinal tract and the central nervous system, mediated primarily by the vagus nerve. The gut produces approximately 95% of the body's serotonin and houses trillions of microorganisms (the gut microbiome) that directly influence neurotransmitter production, immune function, and inflammation. In children with autism and ADHD, gut dysbiosis (imbalanced gut bacteria) and intestinal permeability ('leaky gut') are common and are associated with increased anxiety, sensory sensitivity, sleep disruption, and behavioural dysregulation.

Mitochondria are the energy-producing organelles in every cell. Mitochondrial dysfunction occurs when cells cannot produce sufficient ATP (adenosine triphosphate — the body's energy currency). In autism, mitochondrial dysfunction is significantly more prevalent than in the general population, affecting an estimated 5–80% of autistic individuals depending on the criteria used. It contributes to fatigue, low muscle tone, cognitive difficulties, and behavioural dysregulation — because the brain, which consumes 20% of the body's energy, is the first organ to suffer when energy production is impaired.

Dopamine is a neurotransmitter that regulates motivation, reward, attention, and impulse control. In ADHD, the dopamine system is dysregulated — the brain produces insufficient dopamine or has fewer dopamine receptors, particularly in the prefrontal cortex. This means children with ADHD struggle to sustain attention on tasks that don't provide immediate reward, and are highly drawn to activities that produce rapid dopamine spikes — including screens, sugar, and novelty. Understanding dopamine dysregulation reframes ADHD behaviour from 'laziness' or 'defiance' to a neurological need for appropriate stimulation.

Interoception is the sense that allows us to feel what is happening inside our bodies — hunger, thirst, temperature, pain, heartbeat, and emotional states. Many neurodivergent children have interoceptive differences, meaning they may not reliably detect internal body signals. This can result in not noticing hunger until they are extremely irritable, not feeling the need to use the bathroom until urgent, or being unable to identify their own emotional state. Poor interoception significantly impacts emotional regulation, self-care, and social communication.

An Individualised Education Plan (IEP) is a legally binding document developed collaboratively by parents, teachers, and specialists that outlines a child's specific learning needs, goals, and the accommodations and support services the school will provide. In India, the Rights of Persons with Disabilities Act (2016) entitles children with disabilities to inclusive education and reasonable accommodations. An IEP should be reviewed at least annually and updated as the child's needs change. Parents have the right to participate fully in all IEP meetings.

Reasonable accommodations are adjustments to the learning environment or assessment process that allow a neurodivergent child to access education on an equal basis. Common accommodations include: extended time on tests, a quiet room for exams, written instructions in addition to verbal ones, preferential seating, permission to use noise-cancelling headphones, flexible break times, a visual daily schedule, and modified homework loads during high-stress periods. Accommodations do not lower academic standards — they remove barriers that prevent the child from demonstrating their actual knowledge and capability.

A social story is a short, personalised narrative that describes a social situation, skill, or concept in a structured, reassuring way. Developed by Carol Gray, social stories help autistic children understand what to expect in unfamiliar situations — such as starting a new school, visiting a doctor, or attending a birthday party — by walking through the sequence of events and appropriate responses in advance. They reduce anxiety by making the unknown known, and are particularly effective when accompanied by visual supports.

Stimming (self-stimulatory behaviour) refers to repetitive movements, sounds, or actions — such as hand-flapping, rocking, spinning, humming, or repeating phrases — that neurodivergent individuals use to regulate their nervous system, process sensory input, express emotion, or manage anxiety. Stimming is a natural and functional coping mechanism. Suppressing stimming forces the child to expend enormous energy on masking and removes a key regulation tool, often worsening anxiety and dysregulation. Parents should only intervene if the stimming causes physical harm.

Autistic burnout is a state of physical, mental, and emotional exhaustion caused by prolonged masking, sensory overload, and the cumulative effort of navigating a neurotypical world. It is characterised by a significant loss of skills and functioning — including communication, self-care, and emotional regulation — that the person previously managed. Burnout can last weeks, months, or years. It is most effectively prevented by reducing masking demands, increasing environmental accommodations, and ensuring the autistic person has adequate rest and autonomy.

Compassion fatigue is a state of emotional, physical, and mental exhaustion that develops in caregivers who are chronically exposed to the stress and trauma of caring for a vulnerable person. Special needs parents are at high risk due to the sustained intensity of caregiving, frequent crises, social isolation, and grief associated with their child's challenges. Symptoms include emotional numbness, resentment, chronic fatigue, loss of empathy, and depression. Compassion fatigue is not a character flaw — it is a predictable physiological response to chronic caregiving stress that requires active support.

The double empathy problem, proposed by autistic researcher Dr. Damian Milton, challenges the traditional view that autistic people lack empathy. It proposes instead that the communication and social difficulties between autistic and non-autistic people are mutual — both parties struggle to understand each other's perspectives, but only autistic people are pathologised for it. Research supports this: autistic people communicate effectively with other autistic people. The problem is not a deficit in the autistic person, but a mismatch between two different neurological styles.

'Nothing about us without us' is a disability rights principle asserting that no policy, programme, or intervention affecting neurodivergent individuals should be designed or implemented without the meaningful participation of neurodivergent people themselves. In the context of autism and ADHD, it means that research, therapy approaches, educational policies, and parenting programmes should be informed by the lived experiences of autistic and ADHD adults — not only by clinicians, researchers, or parents observing from the outside.