NATURE OF EXERCISE:
This exercise has been designed to improve the component of cognition that controls and manages higher-order cognitive processes. To make this exercise even more challenging than the Advanced version (Exercise 7B), upon the random on-screen appearance of the word REVERSAL, you must give the reverse of the correct answer. This shift in momentum, called "task shifting" in psychology, or mental flexibility in real life, actually requires high order cognitive processing to perform quickly.

RELEVANCE TO EVERYDAY LIFE:
Enhanced executive function is absolutely vital to allowing us to navigate the challenges that life presents on a daily basis. Executive function provides the cognitive coordination that enables activities such as planning, problem-solving, error correction and troubleshooting, motivation, regulation of emotion, and abstract thinking.

INSTRUCTIONS:
A colored figure (square, circle, star, triangle, etc.) will be presented on the first line of a two-line display. Next to this figure will be the word SHAPE or the word COLOR. On the second line of the display will be three colored figures. If the word on the first line is COLOR, then you must determine which of the figures on the second line matches the color of the figure on the first line. If the word on the first line is SHAPE, then you must determine which of the figures on the second line matches the shape of the figure on the first line. If the left figure is the match, press the LEFT ARROW key on your keyboard. If the right figure is the match, press the RIGHT ARROW key on your keyboard. If the middle figure is the match, press the LEFT and RIGHT ARROW keys on your keyboard simultaneously. However, if the word REVERSAL appears, then press the LEFT ARROW key if the right figure is the match and press the RIGHT Arrow key if the left figure is the match.

You must respond correctly 20 times to complete the exercise.