---

Multidisciplinary Approach in Minimally Verbal Autism

Definition and Prevalence

---

Why a Multidisciplinary Approach Is Essential

• Severe expressive language deficits
• Sensory processing disorders
• Motor planning difficulties (dyspraxia)
• Behavioral dysregulation
• Cognitive and intellectual disability (in many cases)
• Feeding, sleep, and GI comorbidities
• Psychiatric comorbidities (anxiety, ADHD)

---

The Multidisciplinary Team: Roles and Responsibilities

1. Speech-Language Pathologist (SLP)

• Comprehensive communication evaluation (receptive, expressive, pragmatic)
• Differential diagnosis (distinguishing ASD from Landau-Klefner syndrome, selective mutism, severe language disorder)
• Implementation of Augmentative and Alternative Communication (AAC) - the primary evidence-based approach for MVA
• Parent-mediated communication training
• Targeting prelinguistic skills: joint attention, turn-taking, requesting

---

2. Applied Behavior Analysis (ABA) Therapist / Behavior Analyst (BCBA)

• Encourages positive behaviors, discourages maladaptive ones
• Uses discrete trial training (DTT) and naturalistic teaching approaches
• Tracks and measures progress systematically
• Can be used to develop functional communication through mand training and verbal behavior approaches

---

3. Occupational Therapist (OT)

• Sensory integration therapy
• Fine motor and adaptive skills
• Self-care activities of daily living (feeding, dressing, toileting)
• Handwriting and visual-motor skills
• Participation in classroom routines

---

4. Developmental/Behavioral Pediatrician or Child Psychiatrist

• Formal ASD diagnosis and severity grading
• Evaluation and management of comorbidities (ADHD, anxiety, intellectual disability, epilepsy)
• Pharmacotherapy for associated symptoms (not core MVA, but critical for function):
  • Risperidone and aripiprazole (FDA-approved for irritability/aggression in ASD)
  • Stimulants / alpha-2 agonists for co-occurring ADHD
  • SSRIs for anxiety/repetitive behaviors
  • Melatonin for sleep disorders
  • Butenafide (emerging evidence for improving communicative and cognitive abilities - Katzung's Pharmacology, p. 409)
• Educational placement planning

---

5. Child Neurologist

• There is language regression - to rule out Landau-Klefner syndrome (acquired epileptic aphasia) or other epileptic encephalopathies
• Seizure activity is suspected (epilepsy occurs in 20-30% of ASD cases)
• EEG monitoring is needed
• Genetic causes are being worked up

---

6. Audiologist

• Fails to respond to their name
• Shows delayed expressive language
• Cannot follow directions

---

7. Special Educator / Psychoeducational Team

• Formal cognitive and adaptive functioning assessment
• Individualized Education Program (IEP) development
• Classroom modifications and visual supports
• Social skills training in structured settings
• Naturalistic developmental behavioral interventions (NDBIs) - integrating behavioral and child-responsive strategies to teach developmentally appropriate skills in natural, interactive settings (Harriet Lane Handbook, p. 336)
• Transition planning for adolescents/adults

---

8. Psychologist

• Cognitive and neuropsychological testing
• Differential diagnosis (ASD vs. ID, ADHD, selective mutism)
• Degree of cognitive impairment determination
• Caregiver/family counseling and psychoeducation
• Behavioral assessment of challenging behaviors

---

9. Physical Therapist (PT)

• Gross motor delays
• Hypotonia
• Gait abnormalities
• Participation in physical activity (important for behavior regulation)

---

10. Genetics Counselor

• A genetic condition identified as the cause of ASD (Fragile X, Rett syndrome, 22q11.2 deletion, PTEN mutations, etc.)
• Recurrence risk counseling
• Whole exome or chromosomal microarray interpretation

---

11. Additional Therapies

• Music therapy - A 2022 Cochrane systematic review (Geretsegger et al., PMID 35532041) found music therapy beneficial for social interaction and communication in ASD
• Yoga/psychomotricity - for body awareness, motor skills, and self-regulation
• DIR/Floortime - developmental, relationship-based approach emphasizing emotional engagement and play
• JASPER (Joint Attention, Symbolic Play, Engagement, and Regulation) - a systematic review found significant effects on play and communication outcomes (Waddington et al., 2021, PMID 34348479)
• Family therapy - for caregiver coaching and family system support

---

Early Referral Pathway

---

Models of Collaboration

---

Family-Centered Care: The Non-Negotiable Component

• The PACT (Parent-Mediated Communication-Focused Treatment) RCT (Lancet, Green et al.) demonstrated significant communication gains
• Parents adopt social communication strategies that generalize to naturalistic settings (Shire et al., 2015)
• Caregiver coaching reduces stress and improves quality of life for the whole family unit

---

Screening Tools Used Across the Team

---

Key Evidence Summary

---

Practical Principles

1. Start early - neuroplasticity is highest in the first 3-5 years; intervention before age 3 yields the greatest gains
2. Use AAC proactively - AAC does not suppress speech development; robust evidence shows it supports it
3. Individualize - MVA is heterogeneous; one child may respond to SGDs, another to PECS, another to sign
4. Intensity matters - but ethical, person-centered pacing is essential; high-intensity does not mean high-distress
5. Measure outcomes - each discipline should track progress with validated tools and share data at team meetings
6. Coordinate, don't silo - regular multidisciplinary team meetings prevent fragmented care

---

• Cummings Otolaryngology Head and Neck Surgery (Multidisciplinary ASD Clinic, pp. 3511-3513)
• The Harriet Lane Handbook, 23rd ed. (ASD section, pp. 335-336)
• Textbook of Family Medicine, 9th ed. (p. 132)
• Kaplan & Sadock's Comprehensive Textbook of Psychiatry
• Sandbank et al. (2023) Project AIM, BMJ [PMID 37963634]
• Klein et al. (2026) Play-Integrated AAC Systematic Review [PMID 42004683]
• Sterrett et al. (2023) SGD RCT [PMID 36267016]
• Geretsegger et al. (2022) Music therapy Cochrane Review [PMID 35532041]
• Waddington et al. (2021) JASPER Systematic Review [PMID 34348479]
• Koegel et al. (Stanford/Vanderbilt) Systematic Review of MVA Interventions, ClinMed Journals

---

Minimally Verbal Autism: Definitions, Differentiation, Family-Centred Approaches, Intervention Principles, and MDT Clinic Protocol

---

PART 1 - Recent Definitions and Findings on MVA

1.1 Evolving Terminology

Minimally verbal autism = fewer than 20 functional words used consistently in context across environments. This definition was operationalized in Kasari et al.'s landmark SMART trial and is the entry criterion used in the 2025 AIM-ASD trial.

• "Functional" words are defined as words used communicatively with intent, not echolalic repetitions or scripted phrases without communicative purpose
• Word count thresholds vary across studies (some use <30, some <20) - this lack of consensus is itself a recognized research gap (PMC12378320, 2025)
• MVA is now distinguished from Profound Autism (PA), defined by Kasari and the Autism Research Institute as ASD with a developmental quotient (DQ) below 50, age 8+, with poor adaptive skills - PA often but not always overlaps with MV status
• Speech that is present but non-functional (scripted, echolalic, contextually irrelevant) does NOT qualify toward the functional word count

1.2 Prevalence and Trajectory

• Approximately 25-35% of individuals with ASD remain minimally verbal despite receiving interventions (Rose et al., 2016; Science Direct 2025)
• Contrary to historical assumptions, language outcomes are not fixed - Kasari's 2023 cohort data showed that 47% of children who had DQ <50 at age 4 did NOT meet criteria for profound autism by age 8, with early intervention as the key variable
• Gestural communication at the prelinguistic stage is a predictor of later spoken language in MVA children (La Valle et al., 2024, PMID 38861424)
• Baseline joint attention initiation and receptive language ability predict differential response to JASPER vs DTT approaches (Kasari et al., 2023, PMID 37070270)

1.3 Why MVA Is Not Simply "More Severe" ASD

• Motor-speech involvement - Childhood Apraxia of Speech (CAS) co-occurs in a significant proportion; motor planning difficulties mean the child may have adequate language comprehension but cannot produce speech reliably
• Heterogeneous cognitive profiles - Not all MVA children have intellectual disability; some have age-appropriate comprehension with isolated expressive speech failure
• Variable sensory and regulatory profiles - affecting readiness to engage and capacity to communicate
• Social communication intact in some domains - joint attention, gesture, facial affect may be relatively preserved even when speech is absent

---

PART 2 - Differentiating Verbal, Minimally Verbal, and Nonverbal Autism

2.1 Communication Profile Spectrum

2.2 "Preverbal" vs. MVA vs. Nonverbal - Practical Distinctions

2.3 Why These Distinctions Matter Clinically

1. Treatment selection differs - Joint attention/play-based NDBIs most effective for preverbal/MV; motor speech approaches (PROMPT, NDP3) added for apraxic profiles; AAC profile changes across the spectrum
2. Outcome expectations differ - Realistic goal-setting requires categorization; confusing MV with nonverbal leads to over- or under-ambition in language targets
3. Family counseling differs - Families of nonverbal children need earlier, more explicit framing around alternative communication as a permanent, not transitional, modality
4. Educational placement differs - Verbal ASD children may access mainstream with support; MVA may need intensive resource room or specialist ASD provision; nonverbal ASD typically requires specialist provision throughout

---

PART 3 - Family-Centred Approaches

3.1 Why Family-Centred Care Is Non-Negotiable in MVA

• MVA children have the highest rates of parental stress of any ASD subgroup
• Communication failures (child cannot express needs) are the primary driver of challenging behavior
• Culturally adapted, family-empowering models outperform clinic-only delivery models across diverse populations

3.2 Evidence-Based Family-Centred Models

JASPER (Joint Attention, Symbolic Play, Engagement & Regulation)

Project ImPACT (Improving Parents as Communication Teachers)

PACT (Parent-Mediated Communication-Focused Treatment)

Early Start Denver Model (ESDM)

Pivotal Response Treatment (PRT)

3.3 Principles of Family-Centred Practice in MVA

---

PART 4 - Intervention Principles Beyond AAC

4.1 Overview: The "Communication-First" Framework

---

4.2 Joint Attention and Social Engagement

• Responding to joint attention (RJA): following a point or gaze
• Initiating joint attention (IJA): pointing to share, showing, bringing objects
• Maintaining joint engagement in shared activity

---

4.3 Play Development

1. Manipulation - exploratory, cause-effect
2. Functional play - using objects as intended
3. Combinatorial play - relating two objects
4. Symbolic/pretend play - object substitution, role play

---

4.4 Motor Speech Intervention (PROMPT / NDP3)

• Tactile-kinesthetic approach providing manual cues at jaw, lip, and tongue to scaffold speech motor sequences
• Evidence base for MVA children: case series and small RCTs showing vocalizations and first word emergence
• Indicated when: inconsistent errors, better imitation than spontaneous, improved performance with physical support

• Hierarchical phoneme-to-word-to-phrase motor speech program
• Used widely in UK speech therapy for CAS in ASD

• Evidence-based CAS approach using faded cueing hierarchies; adapted for MVA children with ASD

---

4.5 Sensory-Regulatory Intervention

• Sensory integration therapy (SIT, OT-led): targets the nervous system's ability to process and integrate sensory input; reduces reactivity and seeking behaviors
• STAR Framework (Sensory Treatment and Research): structured sensory diet tailored to the child's sensory processing profile
• Regulation-first sequences: create a calm, alert state before any communication demand
• Proprioceptive input: heavy work, weighted tools, movement breaks - reduce overarousal and improve focus
• Sensory stories and visual schedules: reduce anticipatory anxiety, which suppresses communication attempts

---

4.6 Behavioral Approaches (Beyond Discrete Trial Training)

• Milieu teaching / Enhanced Milieu Teaching (EMT): incidental teaching in natural contexts; prompting communication within naturally occurring activities
• Mand training: teaching functional requesting using the child's motivation; the first communicative behavior established in MVA
• Natural language paradigm / Pivotal Response Treatment: motivation-based, child-choice-driven reinforcement; better generalization than DTT
• Incidental teaching: structured natural opportunities created by withholding desired items

• Still valuable for building novel skills in structured formats
• Most effective when individualized and followed by generalization programming
• The 2025 AIM-ASD RCT (Kasari et al., PMID 39864797) found that starting with DTT vs. JASP-EMT produced equivalent outcomes at 16 weeks, and the optimal adaptive sequence was DTT → parent training (early responders) or DTT + JASP-EMT (slow responders) - showing DTT remains a valid entry point

---

4.7 Gestural Communication Development

• Pointing (imperative: requesting; declarative: sharing attention)
• Showing and reaching
• Head nods/shakes for yes/no
• Iconic gestures (e.g., "more," "finished," "help")

---

4.8 Imitation and Turn-Taking

• Adult imitates child first, then child imitates adult
• Builds contingency awareness, turn-taking, and intentional communication
• Multiple RCTs show improvement in spontaneous imitation and social-communicative initiations

---

4.9 Prelinguistic Milieu Teaching (PMT)

• Eye contact
• Reaching and pointing
• Joint attention
• Vocalizations with communicative intent

---

4.10 Feeding and Oral Motor Therapy

• Addresses oral hypersensitivity through desensitization
• Builds oral motor strength and coordination (jaw, lip, tongue)
• Reduces feeding-related distress that spills into overall dysregulation

---

4.11 Literacy as Communication Channel

• Assess literacy potential in all MVA children, even pre-school
• Letterboard/keyboard/text-based communication for hyperlexic MVA individuals
• Rapid Prompting Method (RPM) and Spelling to Communicate (S2C): controversial but used by some families; evidence is limited and contested; clinicians should acknowledge family use without endorsing unverified claims
• High-quality literacy instruction parallels communication development

---

PART 5 - MDT Clinic Protocol and Referral Checklist

---

🏥 MINIMALLY VERBAL AUTISM - MDT CLINIC PROTOCOL

---

SECTION A - REFERRAL CHECKLIST

• Age ≥ 36 months with fewer than 20 functional words
• Age ≥ 24 months with regression in previously acquired words
• Age ≥ 18 months failing M-CHAT-R/F with absent pointing and no words
• Known ASD diagnosis + functional communication limited to <20 words at any age
• School-age child with ASD using speech <50% of communicative interactions
• Any child with ASD + suspected motor speech disorder (inconsistent errors, better with cueing)
• Any child with ASD + language regression (? Landau-Klefner, ? epileptic encephalopathy)
• Non-response to 6 months of single-discipline speech therapy

• Current ASD diagnosis status and severity (DSM-5 Level 1 / 2 / 3)
• Word count estimate and context of use
• Current therapies and duration
• Hearing test results (OAE, ABR, behavioral audiometry)
• Developmental quotient or IQ if available
• EEG results if language regression present
• Feeding concerns
• Current school placement
• Family language/cultural background
• Family concerns and priorities (documented explicitly)

---

SECTION B - INITIAL MDT ASSESSMENT PROTOCOL

• Family completes intake questionnaire (communication diary, daily routine mapping, priority goals)
• Request previous reports: SLP, OT, psychology, medical
• Assign a family navigator/keyworker
• Arrange interpreter if needed

• All disciplines present case summary
• Agree on communication classification: Verbal / MV / Nonverbal
• Identify motor speech involvement (CAS screen result)
• Identify sensory-regulatory needs
• Agree on priority communication targets (max 3)
• Draft integrated intervention plan
• Assign lead keyworker for family contact

• Plain-language summary of findings shared
• Family goals explicitly incorporated into plan
• Written integrated report provided within 10 working days
• School liaison letter sent
• Next review date set (3 months for children under 6; 6 months for older)

---

SECTION C - INTEGRATED INTERVENTION PLAN TEMPLATE

• Verbal ASD (>30 functional words)
• Minimally Verbal ASD (<20 functional words)
• Nonverbal / Nonspeaking ASD (0 functional words)
• Transitional (between categories, review in 3 months)

---

---

• Individual SLP (frequency: _____/week)
• JASPER parent coaching sessions (frequency: _____)
• Motor speech therapy (PROMPT / DTTC / NDP3)
• AAC assessment and trial
• Literacy assessment
• Mand training / PMT
• School-based SLP consultation

• Individual OT (frequency: _____/week)
• Sensory diet program (home + school)
• Feeding therapy
• Fine motor / self-care program
• Environmental modifications (classroom/home)

• DTT program - target skills: _____
• JASP-EMT / NDBI framework
• Challenging behavior functional assessment (FBA)
• Behavior support plan
• Home program for family

• Cognitive reassessment (12-month interval recommended)
• Family support / caregiver stress intervention
• Anxiety assessment and management
• School psychology consultation

• Medication review (date: _____)
• Neurology referral: [ ] Yes [ ] No - Indication: _____
• Audiology: [ ] Up to date [ ] Needs repeat
• Genetics referral: [ ] Yes [ ] No
• Sleep assessment
• GI assessment

• IEP review (date: _____)
• AAC implementation in classroom
• Visual schedule and supports
• Peer interaction program
• Transition planning (if age 14+)

1. ---

2. ---

3. ---

• Parent coaching sessions (model: JASPER / ImPACT / PRT / Other: _____) - (frequency: _____)
• Home communication diary
• Video review sessions
• Sibling involvement: [ ] Yes [ ] No
• Telehealth option offered: [ ] Yes [ ] No

---

SECTION D - REVIEW AND TRANSITION PROTOCOL

• Progress on 3 priority targets reviewed with standardized re-measurement
• Adaptive intervention decision: if slow responder at 6 weeks → augment or change approach (Kasari adaptive model, 2025)
• Family satisfaction and wellbeing check-in
• Update communication classification

• Full reassessment (language, cognition, adaptive behavior)
• Re-evaluate communication classification
• Update IEP
• Transition planning (school transitions, adult services)

• Any regression in words or motor skills
• New-onset seizures
• Behavioral deterioration without environmental explanation
• Loss of previously established AAC use

---

PART 6 - Summary: Key Distinctions and Evidence Hierarchy

---

---

Motivation of the Child and ABC Analysis in Minimally Verbal Autism

---

PART 1 - Motivation in MVA: Why It Is the Engine of Intervention

1.1 The Central Problem

---

1.2 Intrinsic vs. Extrinsic Motivation in MVA

---

1.3 How to Identify Child Motivation: Preference Assessment

Methods:

• Place multiple objects/activities in the environment
• Observe without directing for 5-10 minutes
• Record which items the child approaches, engages with longest, and returns to
• Best for: initial naturalistic scan; low demand; identifies sensory and play preferences
• MVA-specific value: no language required; purely observational

• Present two items at a time
• Child selects by reaching, touching, pointing, looking, or approaching
• Record selections across all pairs
• Rank by percentage of times chosen
• Output: a rank-ordered reinforcer hierarchy

• Present an array of 5-7 items simultaneously
• Child selects one (item is removed after each choice)
• Repeat until all items selected or 2 consecutive no-responses
• Most efficient method for generating a ranked hierarchy quickly

• Same as MSWO but chosen item is replaced
• Better for assessing whether preference is stable vs. satiation-driven

• Present one item at a time; record approach/avoidance
• Simplest; less precise but good for very low-functioning children who won't engage with arrays

---

1.4 Categories of Reinforcers in MVA

---

1.5 Pivotal Response Treatment (PRT) - Motivation as a Pivotal Area

---

1.6 Motivation and the Mand: First Communication in MVA

1. It is directly motivated (child wants something)
2. Reinforcement is immediate and natural
3. It teaches that communication has power
4. It forms the foundation for all subsequent language

1. Identify high-preference item/activity from preference assessment
2. Establish motivation (withhold briefly or allow partial access)
3. Present item to create opportunity ("What do you want?")
4. Prompt (gesture, model, AAC, physical) at lowest effective level
5. Immediately honor any communicative attempt
6. Fade prompts systematically

---

1.7 Motivation and Sensory Regulation

• Arousal level (use Zones of Regulation or Alert Program framework)
• Sensory environment (reduce unpredictable sensory input)
• Physical state (hunger, pain, fatigue - MVA children cannot report these)

---

1.8 Motivation Assessment: The Motivation Assessment Scale (MAS)

---

PART 2 - The ABC Framework in MVA

2.1 Theoretical Foundation

• Challenging behaviors (aggression, self-injury, tantrums, running) are often the child's only available communication tool
• Without speech to express "I'm hungry," "This is too loud," "I don't want this," the child uses behavior
• The ABC framework decodes the message inside the behavior

2.2 The ABC Chart

A - Antecedent

B - Behavior

C - Consequence

---

2.3 The Four Functions of Behavior (FEAT / SEAT)

          ┌─────────────────────────────────────────────────┐
          │         FUNCTIONS OF BEHAVIOR IN MVA            │
          ├─────────────┬───────────────────────────────────┤
          │  FUNCTION   │  THE BEHAVIOR IS SAYING...        │
          ├─────────────┼───────────────────────────────────┤
          │  ATTENTION  │  "Look at me / Be with me"        │
          │  ESCAPE     │  "I don't want this / Stop"       │
          │  TANGIBLE   │  "I want that item/activity"      │
          │  SENSORY    │  "This feels good / I need this"  │
          └─────────────┴───────────────────────────────────┘

---

2.4 The ABC Chart: Completed Template for MVA

ABC DATA COLLECTION FORM - MINIMALLY VERBAL AUTISM
══════════════════════════════════════════════════════════════════════
Child Name: ______________ Observer: ____________ Date: ___________
Setting: _________________ Activity at time: _____________________
Target Behavior being tracked: ___________________________________

┌──────────────┬──────────────────────────┬──────────────────────────┐
│   TIME       │  ANTECEDENT              │  BEHAVIOR                │
│              │  (What happened before)  │  (Exact description)     │
├──────────────┼──────────────────────────┼──────────────────────────┤
│              │                          │                          │
│              │                          │                          │
├──────────────┴──────────────────────────┴──────────────────────────┤
│  CONSEQUENCE (What happened immediately after):                    │
│                                                                    │
├────────────────────────────────────────────────────────────────────┤
│  HYPOTHESIZED FUNCTION:                                            │
│  [ ] Attention  [ ] Escape  [ ] Tangible  [ ] Sensory/Automatic   │
├────────────────────────────────────────────────────────────────────┤
│  COMMUNICATION ATTEMPT PRESENT? [ ] Yes [ ] No                     │
│  If yes, describe: _____________________________________________   │
├────────────────────────────────────────────────────────────────────┤
│  INTERNAL ANTECEDENT POSSIBLE? (hunger/pain/fatigue)               │
│  [ ] Possible  [ ] Unlikely  Notes: __________________________    │
└────────────────────────────────────────────────────────────────────┘

---

2.5 MVA-Specific ABC Examples

---

---

---

---

2.6 From ABC to Intervention: The Function-Based Pathway

      IDENTIFY FUNCTION (via ABC)
              │
              ▼
    ┌─────────────────────┐
    │  What is the child  │
    │  trying to GET or   │
    │  AVOID?             │
    └──────────┬──────────┘
               │
       ┌───────┴────────┐
       ▼                ▼
  ANTECEDENT        CONSEQUENCE
  MODIFICATION      MODIFICATION
  ─────────────     ─────────────
  • Change the      • Teach a
    trigger          replacement
  • Modify task      behavior (FCT)
  • Visual support  • Reinforce
  • Pre-teach        replacement
  • Choice          • Extinguish
                     challenging
                     behavior

---

2.7 Functional Communication Training (FCT): Closing the Loop

• Large effects for reducing challenging behavior (Tau-BC = 0.97)
• Moderate-to-large effects for increasing replacement behavior (Tau-BC = 0.78)
• Most effective in school settings; parent training is a critical implementation gap

1. Functionally equivalent - achieves exactly the same outcome as the challenging behavior
2. Response efficient - easier to produce than the challenging behavior (or it won't replace it)
3. Within the child's motor capacity - accounts for motor speech or motor planning difficulties
4. Honored consistently - replacement communication must ALWAYS be reinforced, initially

---

PART 3 - Motivation Assessment Framework (Visual)

---

PART 4 - Motivation + ABC: Integration in Clinical Practice

The MVA Session Design Principle

1. PREFERENCE CHECK
   Offer choice of 2-3 preferred items/activities
   Observe what the child gravitates toward
           │
           ▼
2. CREATE MOTIVATIONAL CONTEXT
   Use the preferred item/activity as the session context
   Do NOT impose unrelated tasks onto unmotivated child
           │
           ▼
3. ENGINEER COMMUNICATION OPPORTUNITIES
   Withhold briefly, offer partial access,
   pause routine, create a "communication trap"
           │
           ▼
4. PROMPT AND HONOR ATTEMPTS
   At lowest effective prompt level
   Reinforce ANY approximation immediately
           │
           ▼
5. TRACK VIA ABC
   Document what preceded communication attempts
   Note what followed and whether it increased attempts
   Identify any challenging behaviors and their function
           │
           ▼
6. REVIEW AND ADAPT
   Preference may shift (satiation)
   Function may change with context
   Adjust accordingly

---

The Motivational Trap: What Goes Wrong

---

• Blair et al. (2025) FCT meta-analysis [PMID 41464031] - FCT effect sizes in ASD
• Durand & Crimmins (1988) - Motivation Assessment Scale
• Koegel & Koegel - PRT motivation components (foundational text)
• Sam & AFIRM Team (2024 update) - Antecedent-Based Interventions brief packet (AFIRM/UNC)
• Cooper, Heron & Heward - Applied Behavior Analysis (standard ABA text)

---

Preference Assessment Methods

What You Are Looking For

---

Satiation and Deprivation: Managing Motivational State

• Satiation - the child has had so much of something they no longer want it. Never begin a session with unlimited access to the planned reinforcer.
• Deprivation - withholding the preferred item briefly before the session so the child is motivated to request it. This is the standard condition before mand training.
• Preference shifts - what motivates today may not motivate next week. Reassess regularly, especially after extended breaks, illness, or developmental changes.

---

PART 3 - Harnessing Motivation for Intervention

3.1 The Mand: First Communication, Built on Motivation

1. Identify high-preference item via preference assessment
        ↓
2. Establish motivation (brief deprivation - 3-5 minutes)
        ↓
3. Present item visibly but hold it back (create the want)
        ↓
4. Wait for any communication attempt (2-5 second pause)
        ↓
5. Prompt at the lowest effective level:
   Gestural → Model → Physical (most-to-least or least-to-most)
        ↓
6. Immediately deliver the item upon ANY communicative attempt
   (approximation, vocalization, gesture, point, device press)
        ↓
7. Allow brief enjoyment (5-10 seconds)
        ↓
8. Gently remove item to re-establish motivation
        ↓
9. Repeat, fading prompts systematically

---

3.2 PRT: Motivation as a "Pivotal Area"

---

3.3 JASPER: Motivation Through Following the Child's Lead

1. Observe what the child is doing and what holds their attention
2. Join - sit near, imitate the child's actions, mirror their engagement
3. Expand - add one small variation to the play once engaged
4. Comment and model language - at the child's current level, within the motivating activity
5. Never redirect away from the preferred activity; the activity IS the therapy

---

3.4 The Motivational Trap: What Goes Wrong

---

PART 4 - The ABC Chart in MVA

4.1 Why ABC Analysis Is Critical in MVA Specifically

• A child who bites when a demand is made is saying: "Stop. I can't do this. I need a break."
• A child who screams when the iPad is turned off is saying: "I want that back."
• A child who bangs their head when in a loud room is saying: "This is overwhelming my sensory system."

---

4.2 The ABC Chart (Printable Template)

---

4.3 Breaking Down Each Component for MVA

A - Antecedent: Everything Before the Behavior

---

B - Behavior: Defining It Precisely

• Topography - what it looks like (hits flat-handed against table vs. pinches skin)
• Frequency - how many times in the observation period
• Duration - how long each episode lasts
• Intensity - mild/moderate/severe rating
• Latency - how quickly after the antecedent

"Drops to the floor on knees, crosses arms over chest, and produces continuous high-pitched vocalizations lasting 20-120 seconds. Does not respond to name or touch during episode."

"Has a tantrum"

---

C - Consequence: What Actually Reinforces Behavior

When you give in to challenging behavior to stop it, you have just made that behavior more likely to occur next time. Consistency in consequence delivery is the most critical variable in behavior change.

---

4.4 The Four Functions of Behavior in MVA

Function Identification Guide

• Increases when the child has been alone or ignored for a period
• Occurs specifically when adults are talking to others, on the phone, or occupied
• Is immediately resolved when adult gives attention (even negative attention counts)
• In MVA: The child has no verbal way to say "play with me" - behavior is the only tool

• Increases specifically when demands are presented
• Immediately stops when the demand is removed
• Child may engage fine before demand, then rapidly escalate after instruction
• In MVA: Cannot say "this is too hard," "I need a break," "I don't understand" - behavior removes the demand instead

• Occurs when a preferred item is visible but inaccessible, or has just been removed
• Resolves when preferred item is returned
• In MVA: Cannot request "more," "again," "give it back" - behavior retrieves the item

• Occurs regardless of social context - can happen when alone
• Is NOT resolved by attention, removal of demands, or giving items
• The behavior itself produces the reinforcement (proprioceptive, vestibular, auditory input)
• Critical in MVA: Rocking, hand-flapping, humming, repetitive finger movements are frequently regulatory - they should not be eliminated but understood and accommodated

---

4.5 Complete MVA ABC Examples with Intervention

---

---

---

---

4.6 From ABC to Intervention: The Clinical Pathway

---

4.7 Functional Communication Training (FCT): Closing the Loop

• Challenging behavior reduction: Tau-BC = 0.97 (large effect)
• Replacement behavior increase: Tau-BC = 0.78 (moderate-to-large effect)
• School settings showed larger effects than home (parent training is the critical implementation gap)

---

PART 5 - Integrating Motivation and ABC: The Session Architecture

 PRE-SESSION
 ───────────
 • Check setting events (sleep, health, mood)
 • Confirm top 3 preferred reinforcers from assessment
 • Prepare FCT replacement items (break card, device charged)

 SESSION OPENING
 ───────────────
 • Offer 2-3 choices; child communicates preference
 • Enter child's chosen activity; follow their lead
 • No demands for first 2-3 minutes; build engagement

 COMMUNICATION ENGINEERING
 ──────────────────────────
 • Create motivated communication traps
   (withhold, pause routine, offer partial access)
 • Wait 3-5 seconds for spontaneous attempt
 • Prompt at lowest effective level
 • Honor and deliver IMMEDIATELY

 BEHAVIOR TRACKING (concurrent)
 ────────────────────────────────
 • Note any challenging behaviors with A-B-C
 • Record communication attempts and their context
 • Track reinforcer effectiveness

 SESSION CLOSE
 ─────────────
 • Gradual transition (not abrupt removal of preferred activity)
 • Review ABC data collected
 • Identify any functions; plan FCT if new behavior appeared
 • Update reinforcer hierarchy if satiation observed

 AFTER SESSION
 ─────────────
 • Complete full ABC form
 • Share with caregivers: what worked, what the behaviors meant
 • Update intervention plan if needed

---

Summary: The Two Frameworks in One Sentence Each

• "Why is this child communicating?" - Motivation answers this.
• "Why is this child behaving this way?" - ABC answers this.

---

• Blair et al. (2025) FCT meta-analysis, Behavioral Sciences [PMID 41464031]
• Sam & AFIRM Team (2024 update) - Antecedent-Based Interventions, UNC/AFIRM
• Cooper, Heron & Heward - Applied Behavior Analysis (foundational text)
• Koegel & Koegel - Pivotal Response Treatment
• Durand & Crimmins (1988) - Motivation Assessment Scale
• Miltenberger (2016) - Behavior Modification: Principles and Procedures