Brain N-baking 4.0

This application is meticulously crafted to facilitate training of working memory through the Brain N-backing methodology. It offers multiple levels of N-backing, including Dual, Triple, and Quad N-backing, allowing users to progressively enhance their cognitive skills.

Usage Guidelines:

1. Access your brain training history by clicking the icon in the upper right corner.
2. A landmark study published in the PNAS scientific journal in 2008 indicates that engaging in a dual N-back memory task may lead to improvements in both working memory and fluid intelligence.
3. The dual N-back task requires users to simultaneously recall a sequence of spoken letters and the locations of a square, identifying when a letter or position matches an earlier occurrence.
4. This application effectively implements the dual N-back task, providing users with the opportunity to enhance their own working memory and fluid intelligence.
5. In addition to dual N-back, the application also features triple and quad N-back tasks. Users can engage in dual N-back by selecting "Position" and "Sound," while "Color" allows for triple N-back practice, and adding "Shape" enables quad N-back training.
6. The N-back level can be adjusted from 1 to 16, with a default setting of 2 for dual 2-back. The N value represents the position that appeared earlier in the task.
7. Each mode consists of 20 trials per session, with each trial lasting 2.5 seconds by default; however, users can adjust this duration between 0.5 seconds and 2.5 seconds according to their preferences.
8. The display time for symbols is set to 0.5 seconds by default, but this can also be modified within the 0.5 to 2.5-second range based on the user's needs.
9. The repetition ratio, determining the frequency of recognizable cues, can be customized between 20% and 50%, with a standard setting of 25%.
10. Upon completion of each trial, users receive a score which is recorded along with the date and time in their training history.