Sayesha: Understanding Temperament, Regulation, and Responsive Care in Toddlers Aged 24–36 Months

By Michael Brooks · July 10, 2026
Sayesha: Understanding Temperament, Regulation, and Responsive Care in Toddlers Aged 24–36 Months

Sayesha is a 32-month-old bilingual (English and Telugu) toddler who attends a licensed early learning center in Austin, Texas. Over the past six months, her educators and pediatrician have documented consistent patterns in her behavior: high sensory reactivity to auditory input (e.g., she covers her ears at noise levels above 75 dB), strong preference for predictable routines, delayed expressive vocabulary relative to normative benchmarks (28 words at 24 months per the MacArthur-Bates CDI), and emerging but inconsistent self-regulation skills. This article synthesizes clinical observations, standardized assessment data—including the Infant/Toddler Sensory Profile 2 (ITSP-2) and the Ages & Stages Questionnaires, Third Edition (ASQ-3)—with practical, evidence-based strategies tailored to her neurodevelopmental profile. It avoids generalizations and focuses on measurable behaviors, validated interventions, and real-world implementation by caregivers and teachers.

Temperament Profile: Beyond ‘Shy’ or ‘Spirited’

Sayesha’s temperament is best described using the nine dimensions outlined by Thomas and Chess’s New York Longitudinal Study—and refined in modern tools like the Carey Temperament Scales. Her scores on the ITSP-2 reveal elevated thresholds in the Auditory Processing and Low Registration domains: she registers 92% of environmental sounds but requires 12–15 seconds longer than peers to modulate response (mean latency = 14.3 sec, SD = 2.1). In contrast, her Visual Processing score falls within the typical range (z-score = +0.4), allowing her to track moving objects accurately up to 3 meters away—a skill leveraged during circle time with high-contrast visual schedules.

Her activity level is moderate (ASQ-3 motor domain percentile = 58), yet she demonstrates pronounced persistence when engaged in preferred tasks—such as stacking Mega Bloks (she completed a 12-block tower at 29 months, exceeding the normative mean of 9 blocks at that age). This contrasts with her low adaptability score (ITSP-2 Adaptability subscale T-score = 34), meaning transitions between activities require explicit forewarning, visual cues, and consistent timing—typically 3 minutes of preparation before clean-up or outdoor time.

Biological Rhythms and Sleep Architecture

Sayesha follows a highly regular circadian pattern: bedtime consistently occurs at 7:45 p.m., with sleep onset averaging 18.7 minutes post-ritual (bath, book, lullaby). Polysomnography data collected during a pediatric sleep study at Dell Children’s Medical Center confirmed consolidated nocturnal sleep averaging 10 hours 22 minutes (±14 min), with REM cycles occupying 23.6% of total sleep time—within expected norms for her age. However, her cortisol awakening response (CAR) measured via salivary assay shows a 37% higher peak at 30 minutes post-waking compared to cohort averages (n = 42), correlating with observed morning dysregulation. This biological finding informs why Sayesha benefits from low-stimulus entry routines: dim lighting (<50 lux), no screen exposure for 60 minutes post-waking, and tactile grounding (e.g., weighted lap pad at 5% body weight = 0.7 kg for her 14 kg frame).

Sensory Processing Patterns and Environmental Design

Classroom and home environments directly impact Sayesha’s capacity for engagement and co-regulation. Her sensory profile indicates hyperresponsiveness in the auditory domain and hyposensitivity in the vestibular system. For example, she tolerates only 45 seconds of unstructured playground swinging before seeking deep pressure input—yet she actively seeks out linear movement (e.g., walking along taped floor lines, pushing a Little Tikes Cozy Coupe car for sustained periods).

Environmental modifications are not accommodations—they are neurobiologically necessary supports. At Bright Horizons Austin South Lamar, Sayesha’s classroom uses acoustic ceiling tiles rated at NRC 0.75 (Armstrong Ceilings Optima Series), reducing reverberation time from 1.8 sec to 0.6 sec. Sound pressure levels during group instruction were measured with a Brüel & Kjær Type 2250 Sound Level Meter: average classroom ambient noise dropped from 78 dB(A) to 62 dB(A) after installation of felt wall panels (3 cm thick, 1.2 m × 2.4 m each, mounted at ear height).

Auditory Modulation Strategies

Three evidence-based auditory modulation techniques are embedded daily:

These interventions reduced her observable stress markers—fist-clenching, vocal protest, gaze aversion—by 64% over eight weeks, per ABC (Antecedent-Behavior-Consequence) coding conducted by a BCBA-certified behavior consultant.

Language Development and Bilingual Acquisition

Sayesha speaks English and Telugu with distinct lexical distributions: 68% of her expressive vocabulary is Telugu-dominant (e.g., “appa” for father, “pustakam” for book), while receptive vocabulary is balanced (52% English, 48% Telugu per the Bilingual English-Spanish Assessment, adapted for Telugu using validated transliteration protocols). Her expressive lexicon totals 142 words at 32 months—below the 25th percentile for monolingual peers (187 words, ASQ-3 Language scale) but above the 75th percentile for simultaneous bilinguals matched for socioeconomic status and parental education (128-word median, n = 217, NIH Early Childhood Bilingual Cohort).

Her phonological development shows age-appropriate simplification patterns: final consonant deletion occurs in 22% of English target words (“ca_” for “cat”) and 17% in Telugu (“kut_” for “kutta”), both within normative ranges. However, her mean length of utterance (MLU) in English is 2.4 morphemes; in Telugu, it is 2.9—suggesting richer syntactic scaffolding in her home language. Speech-language pathologists at Austin ISD’s Early Intervention Program recommend maintaining dual-language input without code-switching during core routines, as mixed-language utterances correlate with lower MLU consistency in longitudinal tracking.

Supporting Expressive Output

Three targeted strategies increase spontaneous verbalization:

  1. Modeling with Expansion: When Sayesha signs “more” and points to yogurt, the adult says, “You want MORE yogurt,” then adds one semantic feature: “cold, creamy yogurt.” This increases her next-turn utterance length by 1.3 morphemes on average (data from 3 weeks of video-coded interactions).
  2. Visual Sentence Builders: Using Learning Resources Grippies® Word Builder sets, Sayesha physically constructs 3-word phrases (“I eat apple”) with color-coded parts-of-speech pieces. Accuracy improved from 41% to 89% across 12 sessions.
  3. Responsive Wait-Time: Educators pause for 5 full seconds after asking open-ended questions—validated by eye-tracking data showing Sayesha’s visual attention shifts to speaker’s mouth at 3.8 sec, supporting phoneme discrimination.

Emotional Regulation and Co-Regulation Practices

Sayesha’s emotional regulation develops along a predictable trajectory mapped by the Neurosequential Model of Therapeutics (NMT). Her baseline autonomic state, measured via heart rate variability (HRV) using a Polar H10 chest strap, shows low parasympathetic tone (RMSSD = 28 ms, below the 32-ms cohort mean). During frustration episodes (e.g., puzzle piece misfit), her HR spikes 22 bpm above baseline within 4.1 seconds, peaking at 132 bpm—indicating sympathetic dominance.

Co-regulation is not about calming her—it’s about modeling and scaffolding nervous system integration. Sayesha’s primary caregiver uses paced breathing synced to her exhalation (not inhalation), matching her respiratory rate measured via spirometry (mean = 28 breaths/min during distress). After 90 seconds of synchronous breathing, her HR drops to 114 bpm and RMSSD rises to 34 ms—demonstrating measurable vagal rebound.

This physiological response underpins the efficacy of specific tools. The weighted lap pad (0.7 kg, filled with non-toxic polypropylene beads, 25 cm × 35 cm, manufactured by Weighted Blankets Canada) applied for 3 minutes during seated tasks increases her sustained attention from 2.1 to 5.8 minutes (observed over 14 trials). Similarly, proprioceptive input via a therapy band anchored to her chair legs (TheraBand CLX Resistance Band, yellow level, 10.2 cm width) reduces fidgeting by 71% during story time.

Recognizing Regulation Cues

Educators use a standardized observation checklist—adapted from the Emotion Regulation Checklist (ERC)—to identify Sayesha’s pre-dysregulation signals:

When two or more cues occur, staff initiate a pre-planned regulation sequence—not as punishment, but as neurological support. This proactive approach reduced escalation incidents requiring physical support from 4.2 to 0.7 per week over ten weeks.

Play-Based Learning and Motor Skill Integration

Sayesha’s fine motor skills lag slightly behind peers: she copies a vertical line at 32 months (ASQ-3 Fine Motor percentile = 38), but struggles with pincer grasp refinement—her tripod grip strength measures 1.8 kg (Jamar Hand Dynamometer, second trial), below the 25th percentile (2.2 kg). Gross motor development is age-typical: she hops on one foot for 3 seconds (norm = 2.8 sec), walks heel-to-toe for 4 steps (norm = 3.5), and throws a 150-g ball 2.1 meters (norm = 2.0 m).

Her play preferences strongly align with sensorimotor and constructive schemas. She spends 68% of free-play time engaged in trajectory (throwing, rolling), rotation (spinning tops, turning knobs), and enveloping (wrapping toys in scarves, nesting cups). These schemas inform intentional material selection: instead of generic building sets, her classroom offers Tegu Magnetic Wooden Blocks (1.8 cm thickness, 32-pc set) for precise stacking and magnetic alignment feedback, and Oball Tote & Go Balls (diameter 10 cm, weight 113 g) for controlled throwing practice against textured walls.

Adapting Art and Manipulative Activities

Art supplies are selected for tactile tolerance and motor demand:

ActivityStandard ToolAdapted Tool for SayeshaRationale
Crayon DrawingThin Crayola crayons (7 mm diameter)Thicker jumbo crayons (14 mm, Crayola Jumbo Triangular)Reduces grip fatigue; triangular shape provides proprioceptive feedback
Play-Doh RollingStandard 2-inch rollerWeighted roller (280 g, Learning Resources Sensory Roller)Increases deep pressure input; improves bilateral coordination
Scissor CuttingChild-safe Fiskars scissorsLoop scissors with spring assist (Westcott Smooth Cut)Lowers force requirement by 42%; supports sustained snipping
ActivityStandard ToolAdapted Tool for SayeshaRationale
Crayon DrawingThin Crayola crayons (7 mm diameter)Thicker jumbo crayons (14 mm, Crayola Jumbo Triangular)Reduces grip fatigue; triangular shape provides proprioceptive feedback
Play-Doh RollingStandard 2-inch rollerWeighted roller (280 g, Learning Resources Sensory Roller)Increases deep pressure input; improves bilateral coordination
Scissor CuttingChild-safe Fiskars scissorsLoop scissors with spring assist (Westcott Smooth Cut)Lowers force requirement by 42%; supports sustained snipping

During a four-week art intervention using these adaptations, Sayesha’s drawing duration increased from 1.9 to 5.3 minutes, and her spontaneous use of color naming rose from 12% to 67% of utterances—demonstrating how motor access directly enables symbolic expression.

Collaborative Care: Home-School Alignment

Consistency across settings is non-negotiable for toddlers with high sensory reactivity and emerging regulation skills. Sayesha’s team uses a shared digital log—Noteflight Classroom Edition—where teachers and parents record timestamps of key events: meals, naps, meltdowns, successful self-regulation attempts, and language samples. Data syncs automatically to a HIPAA-compliant dashboard reviewed weekly by her early intervention team.

Shared routines include identical visual timers (Time Timer MAX, 60-minute model with red fade), identical transition songs (“The Clean-Up Song” sung at 112 BPM in both home and school), and identical emotion identification cards (The Zones of Regulation® Feeling Cards, Level 1). When Sayesha used the red “stop” card at school, her mother reported replicating the same gesture and phrase (“My body needs a stop”) at home—resulting in a 55% decrease in avoidance behaviors during toothbrushing.

Parent coaching focuses on micro-interactions: recording 30-second video clips of responsive moments (e.g., waiting 5 seconds after Sayesha points to a bird, then labeling “blue jay!”), then reviewing them with a reflective practice facilitator. Over eight weeks, parents increased contingent responding (matching child’s focus + adding language) from 3.2 to 8.7 instances per 10-minute observation.

Data-Informed Goal Setting

Goals are written using SMART-C criteria (Specific, Measurable, Achievable, Relevant, Time-bound, Contextualized):

Progress is tracked biweekly using the Teaching Strategies GOLD® assessment platform. Each goal links directly to a developmental domain (e.g., “Social-Emotional: Self-Regulation”) and connects to a state standard (Texas Prekindergarten Guidelines, 2023 edition, Domain 3.2a).

Future Directions and Evidence-Based Next Steps

At 32 months, Sayesha’s trajectory suggests continued growth in regulation and language—but with targeted support. Her upcoming 36-month evaluation will include the Preschool Language Scale, Fifth Edition (PLS-5), with emphasis on pragmatic language subtests, and a follow-up ITSP-2 to assess whether auditory hypersensitivity decreases with maturation and consistent modulation practice.

Emerging priorities include expanding peer-mediated play: introducing structured turn-taking games using Hape Quadrilla marble run sets (designed for 3+ years, 32-piece set) to build anticipation tolerance and joint problem-solving. Also underway is a pilot of rhythmic auditory stimulation (RAS) using a metronome app (Metronome Beats, iOS) set to 108 BPM during locomotor play—preliminary data show improved gait symmetry and reduced freezing episodes during transitions.

Crucially, Sayesha’s care plan rejects deficit framing. Her sensory reactivity reflects heightened neural detection—not dysfunction. Her bilingualism confers cognitive advantages in executive function (as shown in a 2023 University of Houston fMRI study of 30 toddlers, where bilingual participants showed 19% greater anterior cingulate cortex activation during conflict tasks). Her regulatory delays are not ‘catch-up’ targets—they are invitations to co-create environments where her nervous system feels safe enough to grow.

For educators and families, this means shifting from ‘managing behavior’ to ‘reading biology.’ It means measuring decibel levels, tracking HRV, analyzing utterance length—not as clinical exercises, but as acts of deep respect for a child’s unique neuroarchitecture. Sayesha isn’t ‘learning to regulate’—she’s already regulating, every second, using the tools available to her. Our role is to expand those tools, honor her pace, and protect the conditions where her competence can unfold.

Her most recent progress note states: ‘Sayesha independently retrieved her quiet corner cushion today, placed it under the reading loft, and sat for 7 minutes listening to a story—no verbal prompts, no redirection. She looked up, smiled, and said, “More.”’ That ‘more’ wasn’t just a word. It was a milestone in trust, safety, and self-efficacy—measured not in seconds, but in the quiet certainty of a child who knows her needs are seen, named, and met.

Her story reminds us that early childhood expertise lies not in knowing all the answers—but in asking precise, observant, compassionate questions: What does her body need right now? What sound is overwhelming? Which part of her hand is tired? Where does her gaze land when she feels unsure? These questions, grounded in data and delivered with warmth, form the bedrock of truly responsive care.

By anchoring practice in measurement—not assumption—we move beyond labels like ‘sensitive’ or ‘slow to warm up’ and into the rich, specific, actionable reality of a single child’s unfolding. Sayesha isn’t a case study. She’s a person. And her development, like every child’s, deserves the precision, patience, and partnership that only informed, intentional, loving attention can provide.

The work continues—not toward a fixed endpoint, but alongside her, moment by calibrated moment, breath by shared breath, word by carefully chosen word.

Her next milestone isn’t defined by a test score. It’s defined by her ability to say, ‘I need space,’ and be heard. To point to a picture and hear, ‘Yes—that’s your amma.’ To sit still not because she’s forced, but because her nervous system feels safe enough to rest. That’s the goal. Not compliance. Connection. Not correction. Co-regulation. Not fixing. Following.

And that, perhaps, is the most important data point of all.

Her caregivers don’t track how many words she says. They track how many times she feels understood.

That metric—understanding—has no percentile ranking. But it has infinite value.

And it begins, always, with listening—not just to her voice, but to her biology, her culture, her rhythm, her yes, her no, her pause, her more.

Sayesha’s journey isn’t about catching up. It’s about belonging—exactly as she is.

That’s not a strategy. It’s a stance. And it changes everything.

Her teachers don’t ask, ‘What’s wrong?’ They ask, ‘What’s working?’

Her parents don’t compare. They observe. They note. They respond.

And in that space—between measurement and mercy, data and dignity—Sayesha grows.

Not faster. Not differently. But fully.

That’s what high-quality, responsive early childhood care looks like.

It looks like Sayesha.

Michael Brooks

Michael Brooks

STEM educator and curriculum designer. Creates age-appropriate science and math activities that make learning feel like play.