Nerve cells for decision-making collect evidence for the alternative choices as minute voltage changes across their surface. These changes build up over time until they reach a hair-trigger point, where the nerve cell produces a large electrical impulse. This signals that a decision has been reached

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Nerve cells for decision-making collect evidence for the alternative choices as minute voltage changes across their surface. These changes build up over time until they reach a hair-trigger point, where the nerve cell produces a large electrical impulse. This signals that a decision has been reached