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confirmation bias psychology - behavioral psychology illustration
Posted inCognitive Biases

The Confirmation Bias: Why We Only See What We Believe

Posted by Mário Machado October 23, 2026
Understand confirmation bias psychology: how the human brain filters evidence to protect existing beliefs and how to think more objectively.
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focusing illusion psychology - behavioral psychology illustration
Posted inCognitive Biases

The Focusing Illusion: Why We Overestimate the Impact of Single Events

Posted by Mário Machado June 14, 2026
Discover the focusing illusion psychology (Kahneman & Schkade, 1998): why nothing in life is as important as you think it is while you are thinking about it.
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About 99% Brain UP

Welcome to 99% Brain UP. We are a dedicated editorial team passionate about decoding human behavior, neurobiology, and the hidden mechanics of the mind. Our mission is to bridge the gap between complex behavioral science and everyday life, bringing you evidence-based insights every single day.

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Recent Posts

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    The Contrast Principle: How Comparison Warps Your Reality
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  • confirmation bias psychology - behavioral psychology illustration
    The Confirmation Bias: Why We Only See What We Believe
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    October 23, 2026

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