The conceit was this: You'd be paired with a conversationalpartner at random for a video chat via webcam.
2
The high-density image, low latency, and eye-to-eye lock create the sensation of an actual physical presence with your remote conversationalpartner.
3
Conclusions: Laughter in response to one's own vocalisations or those of a conversationalpartner may be a clinically useful measure in dementia diagnosis.