选了AI才觉得它更懂你，但用过就更想用它。
AI emotional support is better only when chosen, but shifts preferences even when it is not
- 用户自选支持源时，AI表现优于人类；否则无差别。
- 无论是否匹配选择，用过AI后更倾向下次选它。
- 持续个人化对话28天，偏好显著转向AI。
人们在寻求情感支持时面临新抉择：选择人类还是人工智能。现有研究显示AI的共情回应与人类相当或更优，但这些研究要么强制分配支持源，要么尊重用户选择。现实中，支持来源常与意愿不符。三项实验（N=1,951）发现，仅当用户主动选择AI时，其支持效果才被评价为更优；但无论是否符合选择，与AI互动后，用户再次选择它的意愿均上升。在持续28天的OpenAI研究中（N=981），只有当对话涉及个人情感时，偏好才会向AI转移。这表明情感支持选择具有路径依赖性，会逐步削弱对人际连接的依赖。
原文摘要 · Abstract (English)
People increasingly face a novel decision when seeking emotional support: human or AI. In existing studies, AI's empathic messages are rated as well as or better than humans'. But these studies either assigned the support source or honored people's choice. In real life, support is often incongruent with choice, as people want one source and receive the other. Across three experiments (N = 1,951), participants chose whether to share an emotional experience with a human or an AI, then were randomly assigned to a congruent or incongruent partner. AI support was rated as superior only among those who had chosen it. Yet regardless of congruence, interacting with AI increased willingness to choose it again. In a 28-day study with OpenAI (N = 981), daily conversations shifted preferences toward AI and away from humans, but only when conversations turned personal. Emotional support choices are thus path-dependent, progressively redirecting away from human connection.
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