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Field notes

Writing on prediction, behavior, and the future of analytics.

Deep dives, behavioral science, model breakdowns, and product thinking from the team building Moveo.

Predicting the Impact of Product Changes Before You Ship — How We Built Moveo One's Behavioral Engine
TechApr 20, 2026

Predicting the Impact of Product Changes Before You Ship — How We Built Moveo One's Behavioral Engine

Analytics tell you what happened. Moveo One's new behavioral engine tells you what will happen to your users when you ship a change — before a single real user touches it. Here's how we built it.

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What Is Attention and Why Is It So Hard to Maintain Today?
TipsFeb 4, 2026

What Is Attention and Why Is It So Hard to Maintain Today?

3 min read · Irena Jeftović Velkova

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Part Two: How the Brain Reacts to Monotone vs. Highlighted Stimuli
TipsDec 8, 2025

Part Two: How the Brain Reacts to Monotone vs. Highlighted Stimuli

Highlighted stimuli activate the brain in powerful ways, boosting attention and sharpening focus, while monotone input pushes the mind toward idle mode. Understanding how the brain reacts to pronounced visual and auditory cues helps explain why some content captures us instantly — and how platforms like Moveo One use these patterns to predict user engagement.

2 min read · Irena Jeftović Velkova

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Part One: How the Brain Reacts to Monotone vs. Highlighted Stimuli
TipsNov 9, 2025

Part One: How the Brain Reacts to Monotone vs. Highlighted Stimuli

When stimuli stay the same, the brain tunes out — attention fades, boredom rises, and behavior slows. This post explores how monotone input affects neural activity and focus, and how understanding these patterns can help predict and improve user engagement.

2 min read · Irena Jeftović Velkova

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The Power of Color: How What We See Affects What We Feel and Remember
Health & TechOct 8, 2025

The Power of Color: How What We See Affects What We Feel and Remember

Color doesn’t just change how we see — it shapes how we think, feel, and remember. From evoking emotions to enhancing memory, the neuroscience of color reveals its hidden influence on behavior, learning, and design. Understanding this power helps creators build digital experiences that truly connect.

4 min read · Irena Jeftović Velkova

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How Little Children Can Use Apps Safely and Productively
TipsSep 26, 2025

How Little Children Can Use Apps Safely and Productively

Mobile devices surround children from an early age, but not all screen time is equal. With the right balance of limits, creative apps, and age-appropriate content, app use can support — not harm — cognitive and psychomotor development in little ones.

2 min read · Irena Jeftović Velkova

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Do Men and Women Engage with Apps Differently? What Science Says About Gender and UX
TipsSep 22, 2025

Do Men and Women Engage with Apps Differently? What Science Says About Gender and UX

Are men's and women’s brains really different when it comes to app usage? Science suggests subtle cognitive differences — women excel at verbal tasks, men at spatial ones. Learn what this means for UX and how personalization can drive better engagement.

2 min read · Irena Jeftović Velkova

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Understanding Depression Through App Use: What Digital Behavior Can Reveal
TipsSep 22, 2025

Understanding Depression Through App Use: What Digital Behavior Can Reveal

Depression affects millions of people worldwide, slowing not just mood but also movement, thinking, and even how we interact with technology. Could app usage patterns reveal early signs of depression? Researchers suggest yes, and understanding these differences may help us design more inclusive digital experiences.

2 min read · Irena Jeftović Velkova

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When Stress Meets Software: How It Changes the Way We Use Apps
TipsSep 22, 2025

When Stress Meets Software: How It Changes the Way We Use Apps

Stress affects not only our mind and body but also how we use software. From slower decision-making to more typing errors, stress leaves a digital footprint that UX designers can’t ignore. Understanding these patterns is key to building apps that adapt to users — even in stressful moments.

2 min read · Irena Jeftović Velkova

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Can Teenagers Improve Their Sleep and Mood in a Hyperconnected World?
Health & TechJul 30, 2025

Can Teenagers Improve Their Sleep and Mood in a Hyperconnected World?

Most teenagers aren’t getting enough sleep—and smartphones are a big reason why. Late-night screen time disrupts melatonin, attention, and mood. While we may not convince teens to power down, smart UX and subtle design nudges can help technology support healthier sleep habits.

3 min read · Irena Jeftović Velkova

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How I Got Voice UX (VUX) Wrong – and What It Taught Me About Interface Evolution
TipsJul 26, 2025

How I Got Voice UX (VUX) Wrong – and What It Taught Me About Interface Evolution

Voice UX once seemed like the future of interfaces, but privacy and context changed everything. Here’s what 2017 got wrong—and how chat became the bridge between expression and discretion.

3 min read · Vladimir Jeftović

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How We’ve Combined Cognitive Analytics with Predictive UX
TechJul 26, 2025

How We’ve Combined Cognitive Analytics with Predictive UX

Moveo One bridges neuroscience and predictive UX. Discover how cognitive analytics powers AI models that forecast user behavior with up to 99.5% recall — from just a couple of interactions.

2 min read · Vladimir Jeftović

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How to Design for Teen Attention: Cognitive Insights from Adolescence
TipsJul 25, 2025

How to Design for Teen Attention: Cognitive Insights from Adolescence

How does attention develop during adolescence — and what does it mean for digital design? Explore how teens focus, multitask, and engage with content, plus UX tips backed by cognitive science.

3 min read · Irena Jeftović Velkova

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How Do You Design UX for Users with Aging Eyes and Blurred Vision?
TipsJul 22, 2025

How Do You Design UX for Users with Aging Eyes and Blurred Vision?

Understanding Presbyopia: When Vision Changes with Age

2 min read · Irena Jeftović Velkova

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Can UX Design Bridge the Gap Between Aging Minds and Modern Tech?
TipsJul 17, 2025

Can UX Design Bridge the Gap Between Aging Minds and Modern Tech?

Designing for the Aging Brain: How to Make Software Work for Older Adults

3 min read · Irena Jeftović Velkova

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