Intelligent decisions require the ability to call up, compare, and manipulate multiple pieces of information, often within a limited time. Juggle Factor—one of the exercises from BrainHQ’s Intelligence category—challenges you to hold more information in your working memory while manipulating that information. This exercise challenges your ability to make rapid decisions and solve problems in complex environments.

In Juggle Factor, you are presented with a sequence of numbers that are placed within moving circles. Your task is to reconstruct the sequence in the correct order and in the correct locations.

## Here’s how the exercise works:

- Circles will appear on screen and begin to move around. Then, numbers will begin appearing within the circles, one at a time. Remember what numbers appeared in what circles.
- The circles will stop moving after a few moments. Select the circles that contained the numbers, but do so in numerical order (select the circle that showed 1, then the circle that showed 2, etc)

If an incorrect answer is given, you’ll hear a “bonk” sound and the correct answer will appear. Additionally, the level may slow down the rate at which the numbers appear on screen in the following turns. If a correct answer is given, you’ll hear a “boop” sound and the amount of numbers to track may increase in following turns. In both cases, the level then continues, repeating from Step 1 above.

You can review the exercise video tutorial below:

Juggle Factor from BrainHQ from Posit Science on Vimeo.

As you progress through Juggle Factor it becomes more challenging in these ways:

- The digit presentation order changes from forward to backward to random
- The circle trajectories become more complex
- The circle speed increases
- The addition of distracters

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