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propinquity effect psychology - behavioral psychology illustration
Posted inSocial Dynamics

The Propinquity Effect: How Proximity Shapes Human Relationships

Posted by Mário Machado May 10, 2026
Learn how the propinquity effect psychology (Festinger, Schachter, & Back, 1950) proves that physical and functional closeness drives human friendships and trust.
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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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