Autism Spectrum Disorder Overview
Expert-defined terms from the Advanced Skill Certificate in Occupational Therapy and Autism Spectrum Disorder course at London School of International Business. Free to read, free to share, paired with a professional course.
Accommodations – Concept #
modifications to the environment, tasks, or expectations that support participation of individuals with Autism Spectrum Disorder (ASD). Related terms: environmental modifications, assistive technology. Explanation: Accommodations reduce barriers by tailoring sensory input, communication demands, or motor requirements to the individual's profile. Example: Providing a quiet workspace with dimmed lighting for a student who is hypersensitive to bright lights. Practical application: Occupational therapists (OTs) assess sensory preferences and recommend low‑lit zones, noise‑cancelling headphones, or visual schedules. Challenges: Balancing accommodation with the need for exposure to typical stimuli for skill generalisation, and ensuring accommodations are not perceived as stigmatising by peers or educators.
Adaptive Behavior – Concept #
the collection of age‑appropriate everyday skills that enable individuals to function independently. Related terms: daily living skills, functional independence. Explanation: Adaptive behavior includes communication, self‑care, socialisation, and community navigation. Example: A teenager with ASD who can independently prepare a simple snack, follow a bus schedule, and use polite greetings. Practical application: OTs use tools such as the Vineland Adaptive Behavior Scales to identify strengths and gaps, then design interventions that embed skill practice into routine activities. Challenges: Variability in skill acquisition across domains; some individuals may excel in motor tasks but struggle with social reciprocity, requiring interdisciplinary coordination.
Auditory Processing – Concept #
the brain’s ability to interpret and respond to sound information. Related terms: sensory processing, hyperacusis, hypoacusis. Explanation: Individuals with ASD may experience heightened sensitivity (hyperacusis) or reduced sensitivity (hypoacusis) to auditory stimuli, affecting communication and learning. Example: A child covering ears in a noisy cafeteria because background chatter feels overwhelming. Practical application: OTs conduct auditory tolerance assessments, introduce graded exposure, and recommend sound‑attenuating devices or auditory integration therapy. Challenges: Limited evidence for long‑term efficacy of some auditory interventions; individual responses can be unpredictable, requiring ongoing monitoring.
Baseline Assessment – Concept #
initial comprehensive evaluation that establishes the current level of functioning. Related terms: initial evaluation, functional assessment. Explanation: Baseline data guide goal setting, track progress, and inform intervention planning. Example: An OT records a child's fine‑motor coordination, sensory preferences, and self‑care routines before starting therapy. Practical application: Use standardized tools (e.g., Assessment of Communication and Interaction Skills) alongside parent interviews to capture a holistic picture. Challenges: Assessments may be influenced by situational anxiety, requiring flexible scheduling and rapport‑building strategies.
Behavioral Regulation – Concept #
the capacity to modulate emotional and physical responses to internal and external stimuli. Related terms: self‑regulation, emotional regulation. Explanation: Dysregulation may manifest as meltdowns, shutdowns, or repetitive behaviours. Example: A student becomes agitated during transitions and engages in hand‑flapping. Practical application: OTs teach sensory‑based coping strategies (e.g., deep‑pressure input, proprioceptive activities) and incorporate visual transition cues. Challenges: Identifying triggers can be complex; interventions must be personalised and may need adaptation across settings.
Co‑occurring Conditions – Concept #
additional medical, psychological, or developmental diagnoses that frequently accompany ASD. Related terms: comorbidity, dual diagnosis. Explanation: Common co‑occurring conditions include anxiety disorders, attention‑deficit/hyperactivity disorder (ADHD), and epilepsy. Example: An adolescent with ASD also experiences heightened anxiety during social gatherings. Practical application: OTs collaborate with psychologists and physicians to integrate anxiety‑reduction techniques (e.g., progressive muscle relaxation) into occupational routines. Challenges: Overlapping symptoms can obscure the primary cause of functional limitations, necessitating careful differential assessment.
Communication Supports – Concept #
tools and strategies that facilitate expressive and receptive language. Related terms: augmentative and alternative communication (AAC), visual supports. Explanation: Supports range from picture exchange systems to speech‑generating devices, enhancing interaction and reducing frustration. Example: A non‑verbal child uses a tablet with symbol‑based communication to request a break. Practical application: OTs assess motor access, cognitive readiness, and sensory preferences before selecting appropriate AAC modalities. Challenges: Ensuring consistent use across home, school, and community; addressing caregiver concerns about “dependency” on devices.
Contextual Factors – Concept #
environmental and personal elements that influence occupational performance. Related terms: environmental influences, personal factors. Explanation: Factors include family routines, cultural expectations, physical layout, and policy regulations. Example: A child’s participation in a community sports program is affected by the venue’s noise level and the family’s transportation options. Practical application: OTs conduct environmental scans, modify spaces, and educate families on advocacy strategies. Challenges: Systemic barriers such as limited funding or inaccessible public spaces may restrict the feasibility of recommended changes.
Developmental Milestones – Concept #
age‑related benchmarks indicating typical progression of skills. Related terms: normative development, skill acquisition. Explanation: While individuals with ASD may diverge from typical timelines, understanding milestones helps identify areas needing support. Example: By age three, most children achieve basic joint attention; a child with ASD may still be learning to follow gaze. Practical application: OTs compare observed abilities with milestone charts to set realistic, strength‑based goals. Challenges: Rigid reliance on chronological norms can overlook unique trajectories; flexible, person‑centred approaches are essential.
Environmental Modifications – Concept #
physical or sensory adjustments made to a space to optimise participation. Related terms: accommodations, sensory‑friendly design. Explanation: Modifications may involve lighting, flooring, colour contrast, or spatial organisation. Example: Installing a soft‑rubber mat in a therapy room reduces impact noise for children sensitive to auditory overload. Practical application: OTs collaborate with architects and educators to implement sensory‑responsive environments. Challenges: Budget constraints, limited space, and the need for modifications that serve diverse sensory profiles simultaneously.
Executive Function – Concept #
higher‑order cognitive processes that manage planning, organisation, problem‑solving, and impulse control. Related terms: cognitive flexibility, working memory. Explanation: Deficits can impede task initiation, time management, and multi‑step activity completion. Example: A teenager struggles to organise school assignments and frequently forgets to submit work. Practical application: OTs teach visual planners, chunking strategies, and use of timers to scaffold executive demands. Challenges: Executive dysfunction may fluctuate with stress or fatigue, requiring adaptable supports.
Functional Independence – Concept #
the ability to perform daily tasks without assistance. Related terms: adaptive behavior, self‑care skills. Explanation: Independence is measured across domains such as dressing, grooming, and meal preparation. Example: An adult with ASD learns to use a microwave safely and follows a step‑by‑step checklist. Practical application: OTs break tasks into discrete steps, incorporate visual sequencing, and rehearse safety checks. Challenges: Generalising skills from structured therapy to real‑world contexts often demands community‑based practice and caregiver support.
Generalisation – Concept #
transfer of learned skills from one setting or context to another. Related terms: skill transfer, maintenance. Explanation: Successful generalisation indicates meaningful functional change. Example: A child who practices hand‑washing at the therapy clinic independently performs the same routine at home. Practical application: OTs plan practice sessions in varied environments, involve caregivers, and use consistent cues. Challenges: Inconsistent reinforcement across settings can hinder generalisation; collaboration with educators and families is critical.
Gross Motor Skills – Concept #
abilities that involve large muscle groups for movement, balance, and coordination. Related terms: fine motor skills, postural control. Explanation: Deficits may affect participation in sports, playground activities, and daily mobility. Example: A child has difficulty jumping from a low step due to poor balance. Practical application: OTs incorporate obstacle courses, balance boards, and rhythmic activities to enhance strength and proprioception. Challenges: Sensory sensitivities may limit willingness to engage in dynamic motor tasks, requiring gradual exposure.
Hand‑Over‑Hand Guidance – Concept #
a facilitation technique where the therapist physically assists the client’s movement to model a task. Related terms: task‑specific training, verbal prompting. Explanation: This method supports skill acquisition by providing tactile feedback while encouraging client participation. Example: An OT gently guides a child’s hand to grip a pencil correctly, then releases control as the child gains confidence. Practical application: Use during early stages of fine‑motor skill development, then fade assistance as competence improves. Challenges: Over‑reliance may inhibit autonomy; therapists must monitor client engagement and progressively reduce support.
Intervention Planning – Concept #
systematic process of selecting goals, strategies, and outcomes based on assessment data. Related terms: Treatment planning, goal setting. Explanation: Plans are person‑centred, evidence‑based, and time‑bounded. Example: An OT sets a goal for a teenager to independently use public transportation within three months, outlining steps such as route mapping and practice trips. Practical application: Use SMART criteria (Specific, Measurable, Achievable, Relevant, Time‑bound) to structure objectives. Challenges: Balancing client‑driven priorities with funding constraints and measurable outcomes can be complex.
Joint Attention – Concept #
shared focus on an object or event between two individuals. Related terms: social reciprocity, eye‑gaze coordination. Explanation: Joint attention is foundational for language development and social learning. Example: A child looks at a caregiver’s pointing gesture and follows the indicated toy. Practical application: OTs embed joint‑attention activities within play, using turn‑taking games and gesture prompts. Challenges: Deficits may persist despite intervention, requiring integration of speech‑language therapy and parent‑mediated strategies.
Motor Planning (Praxis) – Concept #
the ability to conceive, organise, and execute a sequence of movements. Related terms: dyspraxia, ideomotor praxis. Explanation: Impairments affect daily tasks such as dressing, writing, or using utensils. Example: A child struggles to button a shirt because sequencing the steps is confusing. Practical application: OTs use step‑by‑step visual guides, practice with simplified garments, and reinforce sequencing through repetition. Challenges: Motor planning deficits often co‑occur with sensory processing issues, necessitating integrated approaches.
Multidisciplinary Collaboration – Concept #
coordinated effort among professionals from different disciplines to address complex needs. Related terms: interprofessional team, case conference. Explanation: Collaboration ensures comprehensive care, aligning therapeutic, educational, and medical interventions. Example: An OT, speech‑language pathologist, and psychologist convene to develop a cohesive plan for a child’s communication and anxiety management. Practical application: Share assessment findings, set joint goals, and schedule regular team meetings. Challenges: Differing professional languages, time constraints, and varying funding sources can impede seamless collaboration.
Neurodiversity – Concept #
a paradigm that recognises neurological differences as natural variations of human cognition. Related terms: strength‑based model, inclusion. Explanation: Emphasises acceptance, accommodation, and the value of diverse perspectives. Example: An employer adopts neurodiversity‑friendly hiring practices, providing sensory breaks for autistic employees. Practical application: OTs advocate for strengths‑oriented interventions, highlighting talents such as pattern recognition or systemising. Challenges: Balancing advocacy for acceptance with the need for targeted supports that address functional challenges.
Occupational Performance – Concept #
the ability to carry out meaningful activities in daily life. Related terms: occupational engagement, activity analysis. Explanation: Performance is influenced by person, environment, and task factors. Example: A teenager’s participation in a school club is limited by sensory overload from loud music. Practical application: OTs conduct performance assessments, modify tasks (e.g., provide ear defenders), and teach coping strategies. Challenges: Measuring performance objectively can be difficult; self‑report may be limited by communication barriers.
Parent #
Mediated Intervention – Concept: therapeutic strategies taught to caregivers for implementation in natural contexts. Related terms: home program, caregiver coaching. Explanation: Empowers families to reinforce skills throughout daily routines. Example: Parents learn to use visual schedules to support morning self‑care routines. Practical application: OTs provide training sessions, model techniques, and offer feedback via video review. Challenges: Caregiver stress, time constraints, and varying levels of confidence may affect fidelity of implementation.
Peer #
Mediated Strategies – Concept: approaches that involve typically developing peers to support social interaction and skill acquisition. Related terms: social inclusion, buddy system. Explanation: Peers model appropriate behaviours, provide prompts, and create natural opportunities for practice. Example: A classmate gently invites an autistic peer to join a game, using structured turn‑taking cues. Practical application: OTs design peer‑training modules, teach visual social scripts, and monitor interactions. Challenges: Peer willingness, school policies, and ensuring that support does not become patronising require careful planning.
Proprioceptive Input – Concept #
sensory information from muscles and joints that conveys body position and movement. Related terms: deep pressure, vestibular input. Explanation: Individuals with ASD may seek or avoid proprioceptive feedback, influencing regulation and motor coordination. Example: A child enjoys pushing heavy objects, gaining calming feedback. Practical application: OTs incorporate weighted blankets, resistance bands, or wall‑push activities to provide regulated proprioceptive input. Challenges: Determining the optimal intensity and duration of input to avoid overstimulation.
Repetitive Behaviours – Concept #
patterns of movement, speech, or activity that are repetitive, stereotyped, or ritualistic. Related terms: stimming, restricted interests. Explanation: These behaviours can serve sensory regulation, anxiety reduction, or self‑expression. Example: Hand‑flapping during excitement. Practical application: OTs assess functional purpose, teach alternative regulation strategies, and negotiate contexts where stimming is acceptable. Challenges: Misinterpretation as maladaptive may lead to unnecessary suppression, increasing stress.
Sensory Integration – Concept #
the neurological process that organises sensory input for adaptive responses. Related terms: sensory processing disorder, Ayres Sensory Integration®. Explanation: Dysintegration can manifest as hypersensitivity, hyposensitivity, or atypical responses. Example: A child is overwhelmed by the texture of certain fabrics, leading to avoidance of clothing. Practical application: OTs conduct sensory profiles, design graded exposure activities, and use equipment such as swings or textured mats. Challenges: Research on efficacy is mixed; interventions must be individualised and regularly re‑evaluated.
Social Communication – Concept #
the use of language and non‑verbal cues to interact with others. Related terms: pragmatic language, reciprocal interaction. Explanation: Difficulties may include interpreting sarcasm, maintaining eye contact, or initiating conversation. Example: A teenager responds to a peer’s greeting with a brief “hi” but does not sustain the dialogue. Practical application: OTs incorporate role‑play, video modelling, and cueing systems to practice conversational turns. Challenges: Generalising skills from therapy to spontaneous social settings can be hindered by anxiety or contextual differences.
Structured Play – Concept #
guided activities with clear rules, objectives, and materials that support skill development. Related terms: guided play, therapeutic play. Explanation: Provides a predictable framework that reduces anxiety and promotes learning. Example: Using a board game that requires taking turns, sequencing, and counting. Practical application: OTs select games aligned with targeted goals (e.g., fine‑motor precision, social reciprocity) and embed prompts for desired behaviours. Challenges: Maintaining engagement without over‑scaffolding; adapting games to diverse sensory preferences.
Transition Planning – Concept #
preparation for changes in routine, setting, or role (e.g., moving from home to school, or school to employment). Related terms: change management, life‑skill planning. Explanation: Transitions can trigger anxiety and dysregulation for individuals with ASD. Example: A student transitioning from elementary to middle school experiences heightened stress. Practical application: OTs develop visual transition schedules, conduct site visits, and teach coping strategies such as deep‑breathing. Challenges: Unpredictable variables (new staff, altered environments) may require flexible contingency plans.
Visual Supports – Concept #
graphic tools that convey information, expectations, or sequences. Related terms: picture schedules, social stories. Explanation: Reduce reliance on verbal instructions, enhancing comprehension and predictability. Example: A laminated picture chart showing steps for toileting. Practical application: OTs design individualized visual supports, teach families to update them, and integrate them into daily routines. Challenges: Over‑reliance can limit spontaneous problem‑solving; supports must be gradually faded as competence grows.
Work‑Based Therapy – Concept #
occupational interventions conducted within real or simulated employment contexts. Related terms: vocational rehabilitation, job coaching. Explanation: Focuses on developing task performance, environmental navigation, and social interaction at work. Example: An OT observes an adult with ASD using a computer and provides ergonomic adjustments and time‑management coaching. Practical application: Conduct workplace assessments, implement assistive technologies, and facilitate employer education. Challenges: Securing workplace buy‑in, navigating confidentiality, and tailoring accommodations to dynamic job demands.
Zoomer‑Based Telehealth – Concept #
remote delivery of OT services via video conferencing platforms. Related terms: telepractice, virtual intervention. Explanation: Expands access to families in remote areas, offering real‑time observation and coaching. Example: An OT conducts a home‑based sensory integration session while the parent follows prompts on screen. Practical application: Use secure platforms, obtain consent, and adapt activities to available home materials. Challenges: Technology limitations, reduced tactile feedback, and the need for caregiver facilitation may affect fidelity of interventions.