HumanSpec Journal

Science, practice, and better tests.

Practical notes on reaction time, memory, typing, and building better browser tests. We write about the signals behind the score, the habits that change it, and the limits worth keeping in view.

Research notesPractice guidesTest design

Latest thinking

Start with a useful question.

#stroop#attention#science
What Is a Stroop Test? Attention, Interference, and Fair Measurement

Learn what a Stroop task measures, why response conflict slows people down, and how to interpret an online attention exercise without overclaiming.

HumanSpec Editorial Team

10/27/2026

#n-back#working-memory#science
What Is an N-Back Test? Working Memory Without the Hype

An accessible explanation of the N-back task, working-memory updating, practice effects, and the limits of online brain-training claims.

HumanSpec Editorial Team

10/27/2026

#sequence-memory#visual-memory#memory
What Is a Sequence Memory Test? A Practical Guide to Pattern Recall

Understand sequence memory tasks, visual order, recall errors, and how to compare pattern-memory practice without turning a score into a label.

HumanSpec Editorial Team

10/27/2026

#flanker#attention#science
What Is a Flanker Test? Selective Attention and Response Conflict

Understand the flanker test, response conflict, selective attention, and how to interpret an online exercise without overclaiming.

HumanSpec Editorial Team

10/20/2026

#go-no-go#inhibition#attention#science
What Is a Go/No-Go Test? Inhibition and Impulse Control

Learn what a Go/No-Go test asks, how commission and omission errors work, and why an online task cannot diagnose impulse control.

HumanSpec Editorial Team

10/19/2026

#verbal-memory#memory#learning
What Is a Verbal Memory Test? Recall, Meaning, and Practice

Understand verbal memory tests, free recall and recognition, practice effects, and the limits of using one online score as a memory judgment.

HumanSpec Editorial Team

10/18/2026

#pattern-recognition#visual-reasoning#science
What Is a Pattern Recognition Test? Visual Reasoning Without Overclaiming

Learn what pattern recognition tasks show, how visual rules and difficulty affect a score, and why one online test is not an intelligence measure.

HumanSpec Editorial Team

10/17/2026

#cpt#attention#sustained-attention#science
What Is a CPT Attention Test? Sustained Attention and Online Limits

Understand continuous performance tests, sustained attention, hit and false-alarm rates, and why an online CPT is not a diagnosis.

HumanSpec Editorial Team

10/16/2026

#reaction-time#performance
What is a good reaction time?

Reaction time is simple to measure, but the number only makes sense when you understand the device and the person behind it.

HumanSpec Editorial Team

10/6/2026

#typing#practice
Why your typing speed changes from day to day

WPM is useful, but accuracy, text familiarity, and your state of focus matter just as much.

HumanSpec Editorial Team

8/22/2026

#memory#science
How visual memory tests work

Remembering a changing pattern combines visual attention, short-term memory, and a little strategy.

HumanSpec Editorial Team

7/14/2026

#science#browser#measurement
Browser Timing, Display Latency, and Fair Comparisons

Why a browser result depends on more than the task itself, and how to make comparisons fairer across sessions.

HumanSpec Editorial Team

6/2/2026

#typing#accuracy#practice
How to Improve Typing Speed Without Losing Accuracy

Learn how to improve typing speed with small practice steps while protecting accuracy, sustainable pace, and useful WPM.

HumanSpec Editorial Team

2/16/2026

#baseline#tracking#self-comparison
How to Build a Personal Performance Baseline

A lightweight routine for tracking reaction, memory, and typing results without over-interpreting daily noise.

HumanSpec Editorial Team

1/9/2026

Make the result more useful.

The best test is not the one with the biggest number. It is the one you can repeat, understand, and use to make a better decision about your next practice session. Visit the test lab to put an idea into practice.