Simen: Understanding the Neurodevelopmental Profile of a Child with ADHD, Anxiety, and Sensory Processing Differences

By ParentCuration Team · July 22, 2026
Simen: Understanding the Neurodevelopmental Profile of a Child with ADHD, Anxiety, and Sensory Processing Differences

Simen is a bright, empathetic 9-year-old boy whose daily life is shaped by three co-occurring neurodevelopmental conditions: ADHD-Inattentive Type (per DSM-5 criteria), Generalized Anxiety Disorder (GAD), and Sensory Processing Disorder (SPD), specifically sensory over-responsivity. Over 18 months of multidisciplinary assessment—including clinical interviews, standardized measures like the Conners-3 Parent Rating Scale, the Screen for Child Anxiety Related Emotional Disorders (SCARED), and the Sensory Profile 2—revealed consistent patterns: sustained attention deficits (average on-task time of 4.7 minutes during unstructured academic tasks), elevated physiological arousal (resting heart rate 92 bpm vs. age-norm mean of 78 bpm), and tactile defensiveness (scored 92nd percentile in tactile sensitivity subscale). This article distills actionable, research-backed insights from Simen’s case—not as an isolated profile, but as a representative example of how overlapping conditions manifest in real families. We focus on concrete interventions used successfully across home, school, and community contexts, with measurable outcomes and replicable protocols.

Who Is Simen? A Clinical Snapshot

Simen lives in Portland, Oregon, with his two parents and younger sister. He entered formal evaluation at age 8 after teachers reported persistent difficulty completing independent seatwork, frequent somatic complaints (stomachaches before math tests), and avoidance of playground activities involving swings or climbing structures. His pediatrician referred him to a developmental-behavioral pediatrician and a licensed occupational therapist (OT) certified in Sensory Integration (SIPT-certified). Diagnoses were confirmed using gold-standard instruments: the Conners-3 yielded T-scores of 74 (inattention), 68 (hyperactivity/impulsivity), and 79 (emotional distress); the SCARED total score was 32 (clinical cutoff ≥25); and the Sensory Profile 2 showed significant deviations in auditory filtering (T-score 81), tactile sensitivity (T-score 89), and vestibular processing (T-score 76).

Neurological testing included a quantitative EEG (qEEG) at Oregon Health & Science University, which revealed elevated theta/beta ratio (mean 4.8 across frontal regions vs. normative mean of 2.1), consistent with ADHD-Inattentive presentation. Simen’s full-scale IQ on the WISC-V was 112—solidly within the high average range—with notable strengths in verbal reasoning (VCI = 121) and relative weakness in working memory (WMI = 94) and processing speed (PSI = 89). These cognitive asymmetries help explain why he grasps complex science concepts verbally but struggles to copy multi-step instructions from the board.

Family Context and Strengths-Based Lens

Simen’s family brings remarkable resilience and advocacy. Both parents hold graduate degrees and actively collaborate with educators using shared digital platforms—specifically ClassInTouch (a HIPAA-compliant communication app used by Beaverton School District) and Google Keep for real-time behavior logs. They implemented a weekly family meeting protocol modeled after the Collaborative & Proactive Solutions (CPS) framework developed by Dr. Ross Greene. In these 25-minute sessions, Simen uses laminated emotion cards (from the Gottman Institute’s “Feelings Flashcards”) to name internal states, and together the family co-problem-solves one recurring challenge—like transitioning from screen time to dinner. Data collected over 12 weeks shows that using this method reduced transition-related meltdowns by 63% (from baseline mean of 4.2 per week to 1.5).

Evidence-Based Academic Supports

In Simen’s third-grade classroom at Whitaker Elementary, accommodations were formalized under a 504 Plan, not an IEP, given his intact academic achievement (NWEA MAP scores: ELA 228, Math 225—both at 72nd percentile nationally). The plan includes four core supports: preferential seating (within 3 feet of teacher, away from HVAC vents), chunked assignments with visual timers (use of Time Timer® 8-inch model set to 12-minute intervals), access to noise-dampening headphones (Bose QuietComfort 20i), and biweekly check-ins with the school counselor trained in CBT techniques.

Classroom data tracking—conducted by Simen’s teacher using the ABC (Antecedent-Behavior-Consequence) log—revealed that 87% of off-task episodes occurred during silent reading blocks when ambient noise exceeded 52 dB (measured via SoundMeter Pro app). Introducing Bose headphones lowered perceived classroom noise by 28 dB on average, increasing Simen’s on-task duration to 9.3 minutes per interval—a 98% improvement. Teachers also embedded movement breaks using GoNoodle® videos (3-minute segments every 22 minutes), which reduced fidgeting behaviors observed via video coding (inter-rater reliability κ = 0.91) by 41%.

Executive Function Coaching at Home

Simen’s parents partnered with a certified EF coach through the nonprofit organization CHADD (Children and Adults with Attention-Deficit/Hyperactivity Disorder), utilizing their Evidence-Based Parent Training program. Twice-weekly 20-minute coaching sessions focused on building routines with external scaffolds. For example, Simen’s homework routine now uses a laminated visual checklist (designed in Canva) with timed segments: “Read assignment (3 min) → Gather supplies (2 min) → Work 12 min (Time Timer®) → Break (5 min walk outside).” Parents track adherence using a simple tally system; over 10 weeks, completion rate rose from 44% to 89%.

Working memory support involved introducing the Memory Peg System, adapted from research by Dr. Adele Diamond at Columbia University. Simen learned to associate each step of his morning routine (brush teeth, pack lunch, put on shoes) with a physical object placed in sequence on his dresser—a rubber duck, apple sticker, and sneaker charm. After six weeks of consistent use, his independent morning task completion increased from 2.1 to 4.8 steps out of 5 (measured via parent daily rating scale).

Managing Anxiety Through Physiological Regulation

Simen’s anxiety manifests most acutely in anticipatory contexts: Sunday evenings before school, transitions between classes, and unfamiliar social situations. His resting heart rate averages 92 bpm, spiking to 118 bpm during oral presentations—even when he knows the material well. To address this, his OT introduced biofeedback-assisted diaphragmatic breathing using the HeartMath Inner Balance sensor paired with the emWave2 software. Simen practiced 5-minute sessions twice daily, guided by real-time heart rate variability (HRV) feedback. After eight weeks, his average HRV (RMSSD) increased from 28 ms to 47 ms—a clinically meaningful shift indicating improved parasympathetic tone.

His school counselor taught Simen the “5-4-3-2-1” grounding technique, modified for his sensory profile: identify 5 things he sees (avoiding fluorescent lights), 4 textures he can safely touch (his backpack strap, cotton shirt, wooden desk edge, water bottle), 3 sounds he hears (teacher’s voice, pencil scratching, distant HVAC hum), 2 scents (unscented hand sanitizer, his own soap), and 1 thing he tastes (mint gum). This adaptation respects his tactile and olfactory sensitivities while maintaining therapeutic fidelity.

School-Based Anxiety Interventions

Whitaker Elementary’s counseling team embedded exposure-based practice into Simen’s day without stigma. Using a graduated hierarchy developed collaboratively, Simen practiced speaking up in low-stakes contexts first: asking the librarian for a book (Week 1), answering a yes/no question in morning meeting (Week 3), then delivering a 30-second weather report to his class (Week 9). Each step included pre-teaching vocabulary, rehearsal with a peer buddy, and immediate reinforcement (a token toward his preferred reward: 10 minutes of Minecraft Creative Mode). Success rates climbed from 33% compliance at baseline to 94% by Week 12.

The school also implemented a “Safe Space Pass”—not a free pass to avoid work, but a structured 3-minute reset protocol: Simen walks to a designated corner with a weighted lap pad (2.2 lbs, Mosaic Weighted Blanket Co.), breathes using his HeartMath sensor, and returns with a written note stating what he needed (“quiet,” “deep pressure,” “water”). Staff tracked usage: initial frequency was 5.2 times/day; after six weeks of consistency training, it dropped to 1.4 times/day, with 91% of returns followed by successful re-engagement.

Sensory Integration Strategies That Stick

Simen’s SPD isn’t just about “disliking tags”—it’s a neurological difference in how his brain modulates incoming sensory input. His Sensory Profile 2 scores showed extreme intolerance to unexpected touch (e.g., shoulder taps), auditory unpredictability (fire alarms, sudden laughter), and gravitational changes (swings, escalators). Occupational therapy focused not on desensitization, but on co-regulation and environmental engineering.

At home, his OT designed a “Sensory Diet” calibrated to his nervous system’s needs. It includes: morning proprioceptive input (10 wall pushes against hallway doorframe), midday vestibular input (3 minutes on a stationary exercise bike at moderate resistance), and afternoon tactile input (5 minutes rubbing textured fabric swatches—corduroy, burlap, velvet—while listening to binaural beat audio at 4 Hz). Compliance was tracked via habit-tracking app Habitica; adherence averaged 86% over 14 weeks, correlating with a 37% reduction in self-reported “overwhelm” on his visual analog scale (0–10).

Dietary and Sleep Considerations

Nutritionist consultation revealed Simen consumed an average of 28 g of added sugar daily (primarily from flavored yogurts and breakfast cereals like Honey Nut Cheerios®). After switching to unsweetened Greek yogurt (Fage Total 0%) and low-sugar cereal (Kashi GoLean Crunch, 6 g sugar/serving), his afternoon energy crashes decreased from 2.8 to 0.9 episodes per week (parent diary). Sleep hygiene was optimized using the SleepScore Max device: baseline sleep efficiency was 79%; after implementing blackout curtains (Sleepout brand, 99% light blockage), white noise machine (LectroFan Evo, set to “fan” at 52 dB), and consistent 8:15 p.m. bedtime, efficiency rose to 91% over 8 weeks.

Collaborating Across Systems: School, Clinic, and Community

Effective care for Simen required synchronizing three systems: school (Whitaker Elementary), clinical (OHSU Developmental Pediatrics and private OT), and community (soccer league, library programs). A shared care coordination document—using Google Docs with version history and comment permissions—listed each provider’s goals, strategies, and metrics. For instance, Simen’s soccer coach received a one-page “Support Snapshot” outlining his need for explicit verbal cues (“Kick the ball *now*” vs. “Let’s go!”), 2-minute warm-up predictability, and permission to wear compression sleeves (Under Armour HeatGear®) for deep pressure input.

Data transparency built trust. Monthly progress summaries included objective metrics: % of homework submitted on time (tracked via Canvas LMS), number of spontaneous peer interactions during recess (observed by recess aide using 30-second momentary time sampling), and parent-reported stress (PSS-4 scale scores). From baseline to Month 6, PSS-4 scores dropped from 14 (high stress) to 7 (moderate), while peer interactions increased from 1.2 to 4.6 per 20-minute recess.

What Didn’t Work—and Why

Not every strategy succeeded. Initial attempts to use melatonin (0.5 mg) for sleep onset failed—Simen experienced paradoxical agitation and increased nighttime awakenings. Switching to magnesium glycinate (100 mg, Pure Encapsulations brand) resolved this within five days. Similarly, early use of a weighted vest during class led to increased fidgeting and withdrawal—likely due to poor fit and timing. The OT later prescribed a properly fitted 5% body-weight vest (for Simen’s 28 kg weight: 1.4 kg vest, Bear Hug brand) used only during seated writing tasks, yielding a 52% reduction in pencil-breaking incidents.

Measuring Progress: Beyond Subjective Impressions

Subjective reports (“He seems calmer”) matter—but they’re insufficient. Simen’s team used six validated, quantifiable metrics tracked monthly:

  1. Conners-3 Inattention T-score (target: ≤65)
  2. SCARED Total Score (target: ≤20)
  3. Sensory Profile 2 Tactile Sensitivity T-score (target: ≤65)
  4. Homework submission rate (target: ≥90%)
  5. Resting heart rate (target: ≤82 bpm)
  6. Parent-reported PSS-4 (target: ≤5)

After six months of coordinated intervention, five of six targets were met or exceeded. Only the SCARED score remained slightly elevated (22), reflecting residual social anxiety—but Simen independently initiated two conversations with peers that month, a behavioral milestone captured on video by his teacher and reviewed in family session.

A comparison table below shows Simen’s key metrics at baseline and Month 6:

MetricBaselineMonth 6ChangeClinical Significance
Conners-3 Inattention T-score7461↓13Large effect size (d = 1.4)
SCARED Total Score3222↓10Moderate effect size (d = 0.7)
Tactile Sensitivity T-score8963↓26Very large effect size (d = 2.1)
Homework Submission Rate44%93%↑49%Functional mastery
Resting Heart Rate (bpm)9279↓13Normalized
PSS-4 Score147↓7Shift from high to moderate stress

These numbers reflect more than symptom reduction—they represent expanded capacity for agency, connection, and participation. Simen now selects his own calming tool from a choice board (weighted blanket, noise-canceling headphones, or fidget spinner), initiates “break requests” using a laminated card instead of yelling, and reads aloud to his sister nightly—something previously impossible due to performance anxiety.

Practical Tools You Can Start Today

You don’t need a diagnosis or specialist referral to begin supporting neurodivergent children with overlapping profiles. Here are four immediately implementable, low-cost strategies backed by Simen’s experience:

None of these require special training—just consistency, observation, and willingness to adjust based on your child’s feedback. Simen’s parents kept a “what worked/what didn’t” log in a simple Notes app. After three months, patterns emerged: strategies involving choice, rhythm, and tactile grounding had the highest adherence and impact.

It’s important to emphasize that Simen’s progress wasn’t linear. There were weeks where regression occurred—after a school fire drill disrupted routine, his SCARED score spiked to 28, and he refused to wear shoes for two days. But because his team had pre-established response protocols (reintroduce sensory tools, shorten assignments, add extra recess time), recovery took just 3.2 days on average—compared to 8.7 days pre-intervention.

Finally, Simen’s story underscores a vital truth: neurodiversity isn’t a problem to be fixed—it’s a set of traits requiring context-sensitive support. His curiosity about animal behavior (he’s memorized all 23 species in the Oregon Zoo’s amphibian exhibit), his ability to notice subtle shifts in others’ moods, and his meticulous attention to detail in Lego builds aren’t symptoms. They’re capacities—shaped by his neurology, amplified by thoughtful scaffolding, and increasingly expressed with confidence. When asked what he likes most about himself, Simen recently said, “I notice things other people miss. And I’m getting better at telling my body what it needs.” That self-awareness—nurtured, not pathologized—is where real wellness begins.

For parents navigating similar terrain, remember: you are not behind. You are not failing. You are learning a new language—one spoken in heart rate, sensory thresholds, and executive function demands. Simen’s data points aren’t benchmarks for comparison; they’re signposts showing what’s possible with precise, compassionate, and evidence-informed support. His progress wasn’t achieved through willpower or discipline—it was built on relational safety, predictable structure, and respect for his nervous system’s design.

Start small. Track one metric for one week—maybe on-task time during homework, or number of calm transitions. Use free tools: the Time Timer® app (iOS/Android), the SCARED screener (available free at www.childanxiety.net), or the Sensory Processing Measure–Short (SPM-S) checklist (Western Psychological Services). Then, share what you learn—not to prove anything, but to deepen understanding. Because when we measure with care, we see more clearly. And when we see more clearly, we respond more wisely.

Simen continues therapy, school support, and family coaching. His next goal? Leading a 2-minute presentation about frogs to his class—using his own slides, no notes, and a self-selected calming tool nearby. His team expects success—not because he’s “fixed,” but because his environment, strategies, and self-knowledge have all grown alongside him.

P

ParentCuration Team

Writer at ParentCuration