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The Science of Gambling Distortions: Why Chasing Losses Is a Brain Bug, Not a Character Flaw

"I just need one more hand to get it back" feels like a rational plan. Cognitive science tells a more precise story: chasing losses runs on at least two well-documented biases working in tandem — the gambler's fallacy (the belief that past outcomes shift the odds of future ones) and the illusion of control (believing personal skill can tilt random outcomes) — amplified by loss aversion, which makes a £100 loss sting roughly twice as much as a £100 gain feels good. None of that makes gambling harm less real. It does mean the old script — 'you just lack willpower' — misses the mechanism almost entirely.

~2×the subjective weight of a loss versus an equivalent gain — Kahneman and Tversky's loss-aversion ratio from Prospect Theory, explaining the asymmetric pain that drives chasing behavior 6 cuesillusion-of-control triggers Langer identified — choice, competition, familiarity, involvement, stimulus salience, and passive vs. active — all capable of inflating gamblers' confidence in purely chance outcomes >50%of problem gamblers endorse gambler's fallacy beliefs in cognitive distortion surveys — making it one of the most prevalent irrational cognitions measured in clinical gambling populations 2 biasesindependently predicted chasing losses in the 2021 Journal of Gambling Studies study — gambler's fallacy and illusion of control each contributed unique variance even when measured separately in the same participants

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