A recent study by the University of Colorado Boulder reveals that interacting with AI-generated digital replicas of deceased individuals can evoke deep emotional responses. Most participants expressed a desire to repeat the experience, though the study cautioned that this technology might have psychological effects requiring further exploration.
What is a "Generative Ghost"?
Researchers coined the term "Generative Ghost" to describe models that use generative AI techniques to replicate deceased individuals' personalities and speech styles. While some see it as a novel way to cope with loss, others raise ethical and psychological concerns.
How was the study conducted?
The study involved 16 participants aged 22 to 50, all having lost a close person.
In individual sessions via Zoom, the research team utilized a large language model (LLM) to instantaneously create a virtual version of the deceased, based on information provided by participants, attempting to mimic the person's persona and speech.
First-Person Perspective Found Most Convincing
Participants interacted with two different "Generative Ghosts." The first spoke in the first person, like: "I remember when we went to the beach together," while the second used third-person, such as: "She loved going to the beach with you."
Results showed that all participants preferred the first-person version, deeming it more realistic and closely resembling the lost loved one, although this raised concerns among some researchers due to its emotional impact.
Attention to Detail Matters
The study indicated that participants tolerated minor informational errors but not mistakes concerning identity or speech style.
In one trial, a deceased stepfather's digital version called his son "champ," a term not used in life, prompting the participant to consider ending the session, highlighting the importance of personal detail accuracy in such experiences.
From Lab to Market
This study is the first to focus on user experience with AI "ghosts," published by the Association for Computing Machinery (ACM) via the University of Colorado Boulder.
These ideas are no longer confined to labs, with companies like Project December and HereAfterAI offering services allowing users to create and interact with digital replicas of the deceased.
Risk of Emotional Attachment?
Although all participants were open to using this technology again, many expressed concerns about potential over-attachment among those who lost loved ones, possibly leading to addiction.
Consequently, the research team is collaborating with mental health experts in a new study to assess the potential therapeutic benefits and monitor long-term psychological risks associated with this technology.