How to play the Focus, Level 4 Game
This is the Episodic Stroop N-Back Game – a more complex version of the Stroop Dual N-Back (Level 3) – and the last Level of the last Game in IQ Prime!
Before playing this game, ensure that you know how to play the Stroop Dual N-Back Game.
In this Level 4 Game, each Block alternates randomly between:
Stroop Dual N-back – labelled ‘OR’.
XOR Stroop Dual N-Back – looking for matches in either stimulus stream alone, but not when they occur together.
AND Stroop Dual N-Back – looking for matches when they occur simultaneously in both streams but not when they occur alone (shown in the top of the game window here).
XOR Stroop Dual N-Back Game
In XOR Stroop dual n-back mode, your task is to respond when there is a square OR color/word n-back match but not when there is a square AND color/letter match at the same time.
Unlike the standard Stroop dual n-back in Level 3, the XOR Stroop mode requires you to use your attention control to suppress a simultaneous n-back ‘match’ response (see figure below).
AND Stroop Dual N-Back Game
In the AND Stroop dual n-back game, the challenge is to respond when there is a square AND color/word n-back match at the same time, but not when either stimulus stream is a match on its own.
AND and XOR n-back modes require opposite responses to each other. The AND mode requires you to use your attention control to suppress an n-back ‘match’ response when there are matches that occur in one stimulus stream only (see figure below).
The response keys in this game are always as shown below