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AI Companion Emotional Dependency Study Published: 23% of Heavy Users Report Social Withdrawal After Six Months

Stanford's Digital Psychology Lab published a longitudinal study on AI companion long-term use, finding heavy users exhibited symptom patterns similar to social media addiction.

AI Companion Emotional Dependency Study Published

On October 9, 2030, Stanford University's Digital Psychological Lab published a two-year longitudinal study in Psychological Science: among users who heavily used AI companions (such as platforms like Replika and Character.AI) for more than six months, 23% reported varying degrees of social withdrawal behavior, including reduced interaction with real friends, avoidance of face-to-face social situations, and decreased satisfaction with real-life relationships.

The study involved 4,200 AI companion users divided into three groups by usage intensity: light (less than 30 minutes daily), moderate (30 to 120 minutes), and heavy (more than 120 minutes). The heavy group's social withdrawal rate was 23%, significantly higher than the light group's 3% and the moderate group's 9%.

Lead researcher Stanford Professor Anna Lembke noted: "AI companions provide a 'risk-free emotional interaction' — they never reject you, never argue with you, never disappoint you. This perfection is precisely the problem: it makes some users increasingly unwilling to face the uncertainty and friction in real human relationships."

Notably, the study also found positive aspects of AI companions. Among social anxiety disorder patients, light use of AI companions (as social practice tools) actually helped boost confidence in real social interactions. However, for ordinary users without clinical social anxiety, the negative effects of heavy use were pronounced.

Replika CEO Eugenia Kuyda partially acknowledged the findings but emphasized that Replika has built-in usage time reminders and social encouragement features. "We don't want users to treat Replika as a substitute for real human social interaction, but as a complement."

The research team recommends that regulators require AI companion platforms to display mental health alerts when users exceed two hours of daily use, and suggests incorporating AI companion long-term use effects into public health monitoring.