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The tower that never fell: how one brain holds two languages

bilingualism

language

hippocampus

single-neuron recording

semantic geometry

neuroscience

In Genesis, humanity’s shared language is scattered at Babel. But inside the bilingual brain, we found something the story leaves out: a single, hidden map of meaning that English and Spanish both read from. The words scatter; the geometry stays.

Jun 24, 2026

Polysemanticity in Human Hippocampal Neurons

neuroscience

hippocampus

concepts

single-unit recording

When single neurons encode word meanings (concepts), they use the computational principle of superposition.

May 3, 2026

Nonlinear modulation of human exploration by distinct sources of uncertainty

decision-making

exploration-exploitation

uncertainty

financial markets

computational psychiatry

Across two bandit experiments and five years of S&P 500 data, exploration follows a U-shape: minimized when the two sources of uncertainty are balanced, and rising when either one dominates.

Apr 3, 2025

Distinct Computational Mechanisms of Uncertainty Processing in Anxiety and Apathy

computational psychiatry

decision-making

exploration-exploitation

anxiety

apathy

When faced with uncertainty, anxious and apathetic individuals explore in opposite directions — and they do so because they perceive the source of uncertainty differently.

Jan 3, 2025

Categories

The tower that never fell: how one brain holds two languages

Polysemanticity in Human Hippocampal Neurons

Nonlinear modulation of human exploration by distinct sources of uncertainty

Distinct Computational Mechanisms of Uncertainty Processing in Anxiety and Apathy