Cognitive Domains Explained in Simple Terms (Using LEGO® Examples)

Photo by David Flandre on Unsplash

When a clinician says “cognitive skills”, they mean the brain skills you use to pay attention, remember information, and get things done. These skills can be affected by things like stroke, brain injury, long illness, fatigue, stress, or some neurodevelopmental conditions.

In therapy, you might hear terms like attention, working memory, and executive function. They can sound technical, but they’re actually very practical. They show up in everyday tasks like cooking, driving, studying, working, and managing a household.

One way some clinicians practise these skills is through hands-on tasks — including structured building activities. In this article, we’ll use LEGO® examples to explain what each skill means and how LEGO®-based cognitive rehab tasks can be designed to link back to real-life goals.

Note: “Cognitive rehabilitation” generally refers to therapy approaches that aim to improve thinking skills or help people use strategies to manage changes in thinking after illness or injury.

1) Attention: “Staying on the right thing”

What attention means

Attention is your ability to focus, stay focused, and shift focus when needed. It’s what helps you listen to a conversation, follow steps, or notice hazards when walking or driving.

Common signs attention is difficult

• You lose your place easily (reading, forms, emails).
• You start tasks but don’t finish them.
• Noise or movement distracts you quickly.
• You feel mentally “flooded” in busy places.

LEGO® examples of attention

In LEGO®-based cognitive rehab, attention can be practised in a graded (step-by-step) way:

• Sustained attention (staying with it): Build a small model for 10 minutes without changing tasks. Then gradually increase time.
• Selective attention (ignoring distractions): Build while there’s background noise (quiet music, conversation), only if appropriate and safe.
• Shifting attention (switching): Sort pieces by colour for 2 minutes, then switch to sorting by shape, then switch back.

Everyday “transfer” goal examples

Clinicians often try to connect the activity to real life, such as:

• “Stay focused long enough to complete a basic meal”
• “Follow a list at the supermarket without losing track”
• “Complete a work task in short blocks without drifting.”

2) Working memory: “Holding information in your mind”

What working memory means

Working memory is your ability to hold information in mind and use it. A well-known description is “keeping something in your head while you work with it.”

Working memory helps with things like:

• remembering a short set of instructions
• doing mental maths
• keeping track of what you’re doing while you do it

Common signs working memory is difficult

• You forget the next step mid-task.
• You need repeated instructions.
• You walk into a room and forget why.
• You lose track during conversations.

LEGO® examples of working memory

In LEGO®-based cognitive rehab, working memory tasks can start simple and become harder:

• Build-from-memory (short): Look at a simple model for 10 seconds, hide it, then rebuild it.
• Follow 2–3 steps: “Pick a red 2x4, then a blue 2x2, then a flat grey piece.”
• Update the plan: “Build steps 1–3. Now I’m changing step 2 — adjust the build.”

These can be graded carefully so they’re challenging but not overwhelming.

Everyday “transfer” goal examples

• remembering a 3-step morning routine
• following a short set of work instructions
• tracking steps while cooking

3) Executive function: “Planning, organising, and self-control”

What executive function means

Executive functions are the brain skills that help you plan, organise, solve problems, start tasks, stay on track, and think before acting.

Many experts describe executive function as the “manager” of your thinking — it helps coordinate other skills (like attention and memory).

Common signs executive function is difficult

• You feel stuck starting tasks (even simple ones).
• Planning feels exhausting.
• You rush, skip steps, or make avoidable errors.
• You struggle to change plans when something goes wrong.

LEGO® examples of executive function

This is where **LEGO®-based cognitive rehab** can be very practical, because building often involves planning, checking, and adjusting:

• Planning and sequencing: Build a model that requires steps in order (base first, then supports, then details).
• Problem-solving: “This piece doesn’t fit — what else could work? ”
• Inhibition (pause before acting): “Before you place a piece, check the picture/instructions first.”
• Cognitive flexibility (change gears): “New rule: you can’t use red pieces — adapt the design.”

There is also emerging research exploring LEGO®-based approaches as a structured way to practise cognitive skills in some groups (for example, paediatric neurorehab settings), but evidence can vary by condition and programme style.

Everyday “transfer” goal examples

• planning appointments and travel time
• managing a weekly shopping list and budget
• returning to study with better task planning
• organising work tasks into steps

How clinicians make LEGO® tasks “rehab” (not just play)

A key idea in rehab is structure. The same LEGO® activity can be made easier or harder by changing:

• Time: 5 minutes vs 20 minutes
• Steps: 2-step builds vs multi-step builds
• Support: picture prompts vs no prompts
• Environment: quiet room vs mild background noise
• Rules: extra planning rules (e.g., “check before you place”)

Cognitive rehabilitation often includes both:

• practice tasks (to strengthen a skill), and/or
• strategies (ways to cope, like checklists, cues, and pacing)

So a session might include building plus learning a simple strategy like:

• “Stop–Check–Do” before placing pieces
• breaking tasks into 3 clear steps
• using written prompts and reminders

Tips for patients and families (simple and practical)

• Keep it small: Start with tiny builds so it feels achievable.
• Prioritise calm success: If frustration spikes, the task is probably too hard for today.
• Use short breaks: Fatigue can look like “worse memory” or “worse focus”.
• Talk about the real-life link: “This is like following a recipe” or “This is like planning your morning.”

Safety note: For children or people at risk of swallowing hazards, LEGO® pieces are small and need supervision.

Disclaimer

This article is general information only and is not medical advice. Cognitive symptoms can have many causes and need individual assessment. If you’re concerned about memory, attention, planning, or changes after illness or injury, speak with a qualified health professional (such as your GP, neurologist, neuropsychologist, occupational therapist, or speech pathologist). In an emergency, call 000.

LEGO® is a trademark of the LEGO Group, which does not sponsor, authorise, or endorse this content.