The Investor's Brain

Pedro Bermejo is a Spanish neurologist and founder of the Spanish Association of Neuroeconomics and Neuromarketing. In this book he explains how the brain sabotages investment decisions through fear, panic and cognitive biases — the only Spanish-language book that connects clinical neuroscience directly with market strategy.

Bermejo doesn't speak from speculation but from medical evidence: brain scans, dopamine and cortisol studies, and lab data applied to real financial decisions. The book's core claim is that your brain is literally built to lose money in the markets.

The same neurological responses that kept you alive 50,000 years ago — fleeing danger, following the herd, chasing immediate rewards — are the ones that today make you sell in panic, buy in euphoria and move your stop loss at the worst possible moment. Understanding the biology behind these impulses is, for Bermejo, the first real step toward controlling them: knowing a bias exists isn't enough, you need to understand why your brain produces it.

It fits well once you already know the basics of trading psychology and want to go deeper from a different angle — clinical neuroscience rather than coaching or therapy. It pairs well with Daniel Kahneman's Thinking, Fast and Slow, also in this catalogue, which covers the same biases from cognitive psychology rather than brain biology.