How the eight senses shape early development—and why sensory play is not just a trend.

What Sensory Play really means

In early childhood education, we often talk about areas like communication, physical development, personal and social development, literacy and maths. But beneath all of them sits something even more fundamental: the sensory system.

From the moment a baby is born, they learn through their senses. Every sound, texture, movement, smell and internal feeling becomes information the brain uses to understand the world. Some examples of what sensory input drives:

• Neural pathway formation

• Brain integration (linking different brain regions)

• Motor development

• Emotional regulation

• Language and communication

• Attention and learning readiness

Research from developmental neuroscience and occupational therapy consistently shows that a well‑supported sensory system forms the foundation for all later learning (Harvard Center on the Developing Child; AOTA; Ayres Sensory Integration®).

Sensory play isn’t a trend. It’s biology. A well‑supported sensory system helps children to:

• Make sense of the world- What am I seeing, hearing, feeling?

• Stay regulated- Am I calm, overwhelmed, sleepy, hungry?

• Plan and carry out actions- How do I reach, crawl, climb, hold, draw?

• Engage and learn- Can I focus? Can I filter out background noise?

When sensory processing is supported, children are more able to participate in everyday life activities such as play, relationships, self‑care and, of course, learning.

Beyond the “five senses”: we actually have eight

Growing up, most of us were told that we have five senses, but current occupational therapy and developmental frameworks recognise eight sensory systems. Each one plays a unique role in how babies and toddlers experience the world, and each one can be supported through thoughtful sensory play, since sensory toys and experiences can support each of these in different ways. All of them are mutually important and ensuring your child is exploring, and developing every sense is crucial for their future and overall development.

1. Visual (sight)

2. Auditory (hearing)

3. Olfactory (smell)

4. Gustatory (taste)

5. Tactile (touch)

6. Vestibular (balance & movement)

7. Proprioception (body awareness)

8. Interoception (internal awareness)

Visual: building early attention and tracking

What it does: Detects light, contrast, movement and spatial information.
Why it matters: Supports attention, tracking, depth perception and early reading readiness.

Newborns see only high‑contrast shapes at close range. Their visual system strengthens through repeated exposure to contrast, movement and light.

How to support it:

• Hold high‑contrast objects about 20–30 cm from your baby’s face.

• Move them slowly side to side to strengthen eye muscles and tracking.

• Use simple, uncluttered visuals to avoid overstimulation.

Auditory: the base for language and communication

What it does: Detects sound waves, rhythm, tone and speech.
Why it matters: Forms the foundation for language, communication and emotional connection.

Babies begin hearing in the womb, around 16-18 weeks, with hearing fully formed by 25-27 weeks. After birth, they learn to distinguish voices, rhythms and patterns, and all of them are all essential for communication development. Early exposure to language and varied sound patterns supports vocabulary growth and auditory processing, which is why reading a music are recommended so fiercely.

How to support it: 

• Talk face‑to‑face in a natural voice, using pauses and facial expression.

• Focus on using descriptive and action words
  

• Read, sing and play with rhythm.

• Reduce background noise when you want them to focus. Young brains find it hard to filter competing sounds.

Olfactory: smell, memory and emotional connection

What it does: Detects scents and links them to memory and emotion. 
Why it matters: Supports recognition, curiosity and emotional bonding.

Smell is one of the earliest senses to develop and is deeply tied to memory (like when you smell of cake and are imidditely transported to your grandma's kitchen). Early exposure to natural scents helps children build recognition, curiosity and a richer understanding of their environment.

Everyday ideas:

• Explore natural scents in your environment: smell flowers, herbs, spices and foods together.

• Cook together and smell ingredients before and after cooking.

• Play simple scent‑matching games with familiar items.

Gustatory: taste, texture and food confidence

What it does: Detects flavour, texture and temperature.
Why it matters: Builds food confidence and reduces sensory‑based feeding anxiety.

Taste is more than just about flavour: it’s also about texture, temperature and safety. Early, pressure‑free exposure to different tastes and textures can reduce anxiety around food and support more flexible eating later on, as taste exploration begins long before weaning, through mouthing, licking and early oral play.

Everyday ideas:

• Let children touch, smell and explore food before eating it.

• Talk about what you notice: crunchy, smooth, warm, cold, sour, sweet.

• Eat together so they can watch how you interact with food.

• Use pretend play to explore and talk about food pressure-free.

Tactile: touch, exploration and emotional regulation

What it does: Detects pressure, texture, temperature and pain.
Why it matters: Supports fine motor skills, body awareness and emotional regulation.

Tactile play is what most people think of when they hear “sensory play,” but it’s far more than messy play. It strengthen neural pathways for motor planning and emotional regulation and is vital for fine motor skills and body awareness.

How to support it:

• Start with familiar, gentle sensations and build up gradually.

• Offer a variety of textures: water, sand, dough, fabrics, brushes.
  
  

• Use descriptive language to help them process sensations.

• Never force interaction. Gentle exposure builds confidence and trust.

• Let children use their whole bodies, not just their hands. Encourage rolling, crawling, and barefoot play, for example.

Vestibular: balance, movement and focus

What it does: Detects head position, movement and speed.
Why it matters: Essential for balance, coordination, posture, focus and self‑regulation.

The vestibular system is located in the inner ear and is one of the most powerful sensory systems for calming or alerting the body. 

Everyday ideas:

• Encourage spinning, rolling, swinging, rocking and jumping in safe ways.

• Create simple obstacle courses to crawl under, climb over and step around.

• Remember how powerful crawling is: it helps integrate multiple sensory systems.

• Try yoga for calm, controlled movement.

Proprioception: body position and “heavy work”

What it does: Tells the brain where the body is in space and how much force to use.
Why it matters: Supports coordination, handwriting, self‑care skills and emotional regulation.

Proprioception comes from receptors in muscles and joints. It’s deeply calming and supports coordination, handwriting, self‑care skills and emotional regulation. It's mainly developed by is developed through “heavy work": using own strength to move objects, feeling deep pressure in the muscles, etc.

How to support this:

• Offer “heavy work”: pushing a box or trolley, carrying a small backpack, helping with laundry or shopping.

• Sweeping, gardening, helping with chores around the house
  
  
• Deep pressure: hugs, blanket rolls
  
  

• Try animal walks, climbing, squeezing balls, rolling in blankets.

• Include oral proprioception too: crunchy or chewy foods, blowing bubbles (always safely and age‑appropriately).

Interoception: internal feelings and self‑awareness

What it does: Detects internal sensations such as hunger, thirst, heartbeat, temperature, toilet needs, emotions.
Why it matters: Forms the foundation of self‑regulation and emotional literacy.

Interoception is the sense of what’s happening inside the body. Understanding the different sensations, emotions and what they need is key for a healthy emotional and psychological development, as children learn to listen to their bodies and trust  their judgment, which will build self-confidence.

Everyday ideas:

• Use descriptive language: “My heart beats faster when I run”, “My tummy feels empty, I’m hungry.”

• Ask gentle questions: “How does your body feel right now?”

• Connect sensations to actions.
  
  

• Respect what they tell you. This builds trust in their own signals.

So where do sensory toys fit in?

Sensory toys are not magic fixes of a "one-size fits all" activity. They are beautiful tools when used with intention. They can:

• Offer safe, repeatable ways to explore different senses.

• Help children who seek or avoid certain sensations to find a comfortable middle ground.

• Support focus, calm and engagement during play and daily routines.

The real value is in how the toy is used and the experience it creates: the textures explored, the movements invited, the conversations sparked, the feelings named. Sensory play is simply this: children using their whole bodies to make sense of themselves and the world.

Whether you’re offering a high‑contrast card to a newborn, a tray of grains to a curious toddler, or a chance to push a heavy box across the room, you’re doing something powerful: you’re supporting their brain, their body and their sense of self all through play.