What notable early system from 1998 demonstrated emotion influencing interaction by adjusting game difficulty based on player stress?

Answer

Tetris 64

The game Tetris 64 for the Nintendo 64 included a biosensor that measured player stress and dynamically increased game difficulty based on that measurement.

What notable early system from 1998 demonstrated emotion influencing interaction by adjusting game difficulty based on player stress?
inventionArtificial Intelligenceemotioncomputer scienceaffective computing