Category fluency: a quietly powerful home check

Naming as many animals (or fruits, or countries) as you can in a minute is one of the simplest cognitive observations — and one of the most informative.

Key takeaways

• Ask casually: 'How many animals can you name in a minute?'
• Notice ease of retrieval and whether they 'get stuck' quickly.
• Don't compare to thresholds — compare to that person's own pattern.
• Keep it playful; rotate categories so it stays light.

What this method is

Category fluency asks someone to list as many items in a category (animals, fruits, etc.) as they can in a short time. It is one of the most common building blocks of clinical cognitive screening, but a casual version at home is still informative — especially for tracking change over time.

How to do it

1. Pick a category. Animals is the standard.
2. Optional: set a one-minute timer.
3. Ask them to name as many as they can.
4. Notice *how* they do it, not just the count.

What to observe

• **Ease of retrieval** — do words come quickly or with effort?
• **Clustering** — do they group naturally (farm animals, then sea animals)?
• **'Stuck' moments** — do they hit a wall quickly?

Avoid sharing scores or 'averages' you find online. Without education, language, and age normalisation, those numbers are misleading and can cause unnecessary worry. The signal is change in the same person, not comparison to others.

How Memo complements this

Memo's language check-in uses a similar category-naming format with a built-in baseline so changes are normalised to the person's own history.

Frequently asked questions

How many words is 'normal'?

There is huge variation by age, education, and language. We deliberately don't share thresholds here because they are misleading without clinical context. Focus on change over time for the same person.

Should I use a timer?

Sometimes yes, sometimes no. Doing it without a timer keeps it casual; doing it with a one-minute timer makes responses comparable. Both are useful.

What categories work best?

Animals is the classic. Fruits, vegetables, countries, and 'things in a kitchen' all work. Mix it up so it doesn't feel rehearsed.