Steering 'emotion neurons' in LLMs changes their social decisions

burny_tech · x · 2026-10-26

A new study shows that steering internal 'emotion neurons' in an LLM directly changes its social behavior. Shown experiments: activating an 'envious' neuron makes the model offer only 3 of 12 tokens to a rival, while 'thankful' neurons make it offer 9; 'hope' pushes it to gamble a coin toss for 24 credits, 'afraid' picks the sure thing; 'exasperated' makes it decline to re-explain a step a fourth time; and a 'humiliated' neuron drops its stated confidence from 95% to 55%.

The takeaway: emotional states have localizable, manipulable representations inside models that systematically shift behavior in bargaining, risk-taking, and honesty tasks.

Related event: Steering 'Emotion Neurons' Can Sway Model Judgments and Social Decisions(2 posts)→

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