Looking for a paper: AI in human host I am searching for a paper where participants were confronted with a (female) person, who gave answers according to a computer algorithm. She had an earpiece that gave her the answers and was trained to simultaneously listen and speak.

Some participants thought that she was acting a bit off, but none recognized that they are talking to a computer. I think the aim of the study was some sort of turing test. 

Hope anyone can help me find it. I don't know how to look for it anymore...
Finally! 

I found a news article explaining the Echoborg.
The research was done in 2015 by Kevin Corti and Alex Gillespi at the London School of Economics and Political Science. Published at Frontiers of Psychology: https://doi.org/10.3389/fpsyg.2015.00634