Description: A implementation of the dual n-back task psychological test in flash. Can you remember the symbol that appeared N beats ago? This test was proven to improve your memory and problem solving skills!

Instructions: Click the mouse or press Enter if the symbol or shape on screen is the same as the symbol N beats ago. (N is chosen at the start of the game.) Pick 'Both' in the mode tab to simulate the Dual N-back mode. In this mode, you must click if either the symbol or the shape is the same as the symbol N beats ago!

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Credit:Zarat