# Early Signs of Sensory Processing Differences in a 12-to-18-Month-Old

Canonical: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-sensory-processing-differences-in-a-12-to-18-month-old
Publisher: Pinnacle Blooms Network / Bharath Healthcare Laboratories Private Limited

At 12-to-18 months, sensory processing differences appear as patterns: being easily overwhelmed by noise, textures or touch (over-responsive), or constantly seeking spinning, crashing and squeezing (under-responsive/seeking). Single quirks are normal — a persistent pattern that disrupts play, feeding or outings is worth a developmental check.

*Every baby explores the world through touch, sound, movement and taste — but some little ones seem to feel it all too much, or hardly enough. Noticing how your toddler responds is the first gentle step.*

## In short
At 12-to-18 months, [sensory processing differences](/sensory-processing) show as patterns in how your child reacts to everyday sights, sounds, textures and movement — being easily overwhelmed by noise or messy play, or seeking lots of spinning, crashing and squeezing. These are differences in how the brain organises sensation, not signs of "naughtiness" or poor parenting. A single quirk is common at this age; it is the persistent pattern across home and outings that is worth a friendly developmental check.

## Gentle signs to watch
**Over-responsive (the world feels like too much)**
- Big distress at everyday sounds — the mixer, vacuum, hairdryer
- Strongly dislikes certain textures: refuses messy hands, grass, sand, or new food textures
- Upset by being held, dressed, or by tags and seams on clothes
- Frequent meltdowns in busy, bright or noisy places

**Under-responsive or sensory-seeking (the world needs to be turned up)**
- Constantly on the move — crashing, spinning, bouncing, mouthing objects long past the usual stage
- Seems not to notice bumps, falls or loud sounds
- Loves tight squeezes, deep pressure, rough-and-tumble more than peers

**Everyday knock-ons**
- Very fussy or limited eating linked to texture, not just taste
- Hard to settle or soothe; uneven sleep
- Tips over often, or seems unsure on uneven ground

## The science, simply
Sensory processing is how the nervous system takes in and makes sense of information from the body and the world. In the second year, toddlers are flooded with new input, so some over- or under-reaction is normal. What matters is whether the pattern is intense, frequent, and gets in the way of play, feeding, sleep or being out together. [Occupational therapy](https://www.pinnacleblooms.org/best-occupational-therapy-center-india-proven-improvement-rate) helps the brain and body work together through playful, sensory-rich activities.

## The Pinnacle way
Developmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under the care of a qualified clinician — never from a web page or checklist. Our [occupational therapy](https://www.pinnacleblooms.org/best-occupational-therapy-center-india-proven-improvement-rate) team uses the clinician-administered [AbilityScore®](/ask/what-is-the-abilityscore-and-how-is-it-calculated) to map your child's sensory profile and build a play-based plan with you.

## Trusted sources
Aligned with WHO ICD-11, CDC "Learn the Signs. Act Early.", the Indian Academy of Pediatrics, and the American Academy of Pediatrics (HealthyChildren.org).

**Next step —** if these patterns sound familiar, book a friendly developmental screen with a Pinnacle occupational therapist on WhatsApp: +91 91001 81181.

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.

## Sources
- CDC — Learn the Signs. Act Early.: https://www.cdc.gov/child-development
- American Academy of Pediatrics (HealthyChildren.org): https://www.healthychildren.org
- WHO ICD-11: https://icd.who.int/en

## Connected topics and perspectives
- Conditions: https://pinnacleblooms.org/ask/conditions
- Parent / Family: https://pinnacleblooms.org/ask/lens/stakeholder/parent
- Toddler-12-18: https://pinnacleblooms.org/ask/lens/age/toddler-12-18
- Sensory: https://pinnacleblooms.org/ask/lens/domain/sensory
- Early Signs: https://pinnacleblooms.org/ask/lens/intent/early_signs
- Screen: https://pinnacleblooms.org/ask/lens/lifecycle/screen
- Occupational Therapy: https://pinnacleblooms.org/ask/lens/route/occupational-therapy
- Early Clarity: https://pinnacleblooms.org/ask/lens/empowerment/early_clarity
- Sensory Processing Differences: https://pinnacleblooms.org/ask/lens/condition/spd
- English: https://pinnacleblooms.org/ask/lens/language/en
- SDG 10: Reduced Inequalities: https://pinnacleblooms.org/ask/lens/sdg/10
- SDG 3: Good Health and Well-being: https://pinnacleblooms.org/ask/lens/sdg/3
- ASHA / PHC / Frontline: https://pinnacleblooms.org/ask/lens/stakeholder/asha_phc
- Doctor / Pediatrician: https://pinnacleblooms.org/ask/lens/stakeholder/doctor

## Related question paths

### Understand the subject
- How Sensory Processing Differences affect a child's daily life: https://pinnacleblooms.org/ask/how-does-sensory-processing-differences-affect-a-child-s-daily-life
- Is Sensory Processing Differences considered a disability?: https://pinnacleblooms.org/ask/is-sensory-processing-differences-considered-a-disability
- Is Sensory Processing Differences genetic or hereditary?: https://pinnacleblooms.org/ask/is-sensory-processing-differences-genetic-or-hereditary
- Common Myths About Sensory Processing Differences: https://pinnacleblooms.org/ask/what-are-common-myths-about-sensory-processing-differences
- What are the types or levels of Sensory Processing Differences?: https://pinnacleblooms.org/ask/what-are-the-types-or-levels-of-sensory-processing-differences
- What Causes Sensory Processing Differences in Children?: https://pinnacleblooms.org/ask/what-causes-sensory-processing-differences-in-children
- What is Sensory Processing Differences?: https://pinnacleblooms.org/ask/what-is-sensory-processing-differences
- Conditions That Co-occur With Sensory Processing Differences: https://pinnacleblooms.org/ask/what-other-conditions-often-occur-alongside-sensory-processing-differences
- Early Intervention Outcomes for Sensory Processing Differences Under 7: https://pinnacleblooms.org/ask/what-does-current-research-show-about-early-intervention-outcomes-for-sensory-processing-differences-in-children-under-7
- What is Sensory Processing Differences, and its ICD-11 features?: https://pinnacleblooms.org/ask/what-is-sensory-processing-differences-and-what-are-its-icd-11-features-in-early-childhood
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- What is the SNOMED CT concept for Sensory Processing Differences?: https://pinnacleblooms.org/ask/what-is-the-snomed-ct-concept-for-sensory-processing-differences

### Recognise signs & concerns
- Early Signs of Sensory Processing Differences in an 18-to-24-Month-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-sensory-processing-differences-in-a-18-to-24-month-old
- Early Signs of Sensory Processing Differences in a 2-Year-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-sensory-processing-differences-in-a-2-year-old
- What are the early signs of Sensory Processing Differences?: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-sensory-processing-differences
- Early Signs of Sensory Processing Differences in a 6-to-9-Month-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-sensory-processing-differences-in-a-6-to-9-month-old
- Early Signs of Sensory Processing Differences in a 9-to-12-Month-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-sensory-processing-differences-in-a-9-to-12-month-old
- Early Signs of Sensory Processing Differences in a 3-Year-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-sensory-processing-differences-in-a-3-year-old
- When should I worry that my 12-to-18-month-old might have Sensory Processing Differences?: https://pinnacleblooms.org/ask/when-should-i-worry-that-my-12-to-18-month-old-might-have-sensory-processing-differences
- Can Sensory Processing Differences be cured?: https://pinnacleblooms.org/ask/can-sensory-processing-differences-be-cured
- Can Sensory Processing Differences Be Prevented?: https://pinnacleblooms.org/ask/can-sensory-processing-differences-be-prevented
- Do boys show sensory processing differences differently?: https://pinnacleblooms.org/ask/do-boys-show-sensory-processing-differences-differently
- Do girls show Sensory Processing Differences differently?: https://pinnacleblooms.org/ask/do-girls-show-sensory-processing-differences-differently
- Early Signs of Sensory Processing Differences in a 1-Year-Old Boy: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-sensory-processing-differences-in-a-1-year-old-boy

### Explore causes & influences
- Are boys more likely to have Sensory Processing Differences?: https://pinnacleblooms.org/ask/are-boys-more-likely-to-have-sensory-processing-differences
- Are girls more likely to have sensory processing differences?: https://pinnacleblooms.org/ask/are-girls-more-likely-to-have-sensory-processing-differences
- What Causes Sensory Processing Differences in Young Children?: https://pinnacleblooms.org/ask/what-causes-sensory-processing-differences-in-young-children
- How early sensory intervention advances UNCRPD and the SDGs: https://pinnacleblooms.org/ask/how-does-early-intervention-for-sensory-processing-differences-advance-un-child-rights-uncrpd-and-the-sdgs
- Contributing Factors for Sensory Processing Differences: https://pinnacleblooms.org/ask/what-are-the-known-contributing-factors-for-sensory-processing-differences-in-early-childhood
- Cost-Effectiveness of Early Therapy for Sensory Processing Differences: https://pinnacleblooms.org/ask/what-is-the-cost-effectiveness-of-early-therapy-for-sensory-processing-differences-in-young-children
- Prevalence and Public-Health Burden of Sensory Processing Differences in India: https://pinnacleblooms.org/ask/what-is-the-prevalence-and-public-health-burden-of-sensory-processing-differences-among-young-children-in-india

### Understand assessment
- How does AbilityScore track progress in a child with Sensory Processing Differences?: https://pinnacleblooms.org/ask/how-does-abilityscore-track-progress-in-a-child-with-sensory-processing-differences
- How Sensory Processing Differences Are Assessed in a Young Child: https://pinnacleblooms.org/ask/how-is-sensory-processing-differences-assessed-in-a-young-child
- What an AbilityScore of 0–100 Means for Sensory Processing Differences: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-0-100-mean-for-a-child-with-sensory-processing-differences
- What an AbilityScore 100–200 Band Means in Sensory Differences: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-100-200-mean-for-a-child-with-sensory-processing-differences
- What does an AbilityScore of 200–300 mean for a child with Sensory Processing Differences?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-200-300-mean-for-a-child-with-sensory-processing-differences
- AbilityScore 300–400 for Sensory Processing Differences: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-300-400-mean-for-a-child-with-sensory-processing-differences
- What an AbilityScore of 400–500 Means for Sensory Processing Differences: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-400-500-mean-for-a-child-with-sensory-processing-differences
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- What does an AbilityScore of 700–800 mean for a child with Sensory Processing Differences?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-700-800-mean-for-a-child-with-sensory-processing-differences
- What an AbilityScore® of 800–900 means for Sensory Processing Differences: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-800-900-mean-for-a-child-with-sensory-processing-differences
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### Explore therapy & support
- Can a child with Sensory Processing Differences attend a mainstream school?: https://pinnacleblooms.org/ask/can-a-child-with-sensory-processing-differences-attend-a-mainstream-school
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- How to Support Sensory Development in Sensory Processing Differences: https://pinnacleblooms.org/ask/how-can-we-support-sensory-development-in-a-child-with-sensory-processing-differences
- How is Sensory Processing Differences diagnosed in a child?: https://pinnacleblooms.org/ask/how-is-sensory-processing-differences-diagnosed-in-a-child
- How is Sensory Processing Differences supported through therapy?: https://pinnacleblooms.org/ask/how-is-sensory-processing-differences-supported-through-therapy
- AbilityScore 0–100 for Sensory Processing Differences — next steps: https://pinnacleblooms.org/ask/my-child-with-sensory-processing-differences-has-an-abilityscore-of-0-100-what-should-we-do-next
- AbilityScore 100–200 with Sensory Processing Differences — Next Steps: https://pinnacleblooms.org/ask/my-child-with-sensory-processing-differences-has-an-abilityscore-of-100-200-what-should-we-do-next
- SPD AbilityScore 200–300 — your next step: https://pinnacleblooms.org/ask/my-child-with-sensory-processing-differences-has-an-abilityscore-of-200-300-what-should-we-do-next
- AbilityScore 300–400 with Sensory Processing Differences: what to do next: https://pinnacleblooms.org/ask/my-child-with-sensory-processing-differences-has-an-abilityscore-of-300-400-what-should-we-do-next
- AbilityScore 400–500 with Sensory Processing Differences — Next Steps: https://pinnacleblooms.org/ask/my-child-with-sensory-processing-differences-has-an-abilityscore-of-400-500-what-should-we-do-next
- AbilityScore 500–600 with Sensory Processing Differences: what to do next: https://pinnacleblooms.org/ask/my-child-with-sensory-processing-differences-has-an-abilityscore-of-500-600-what-should-we-do-next