A Thought-Operated Digital Random-Access Memory

Figure 2

Performance of the thought-operated memory device. (a) Performance histograms of 3 representative subjects, summarizing their ability to achieve and maintain a specific attention level during 10 writing and reading tasks (green = read, blue = no action, orange = write 0, yellow = write 1); vertical coordinate, Frequency, indicates the number of times a subject reached a curtain attention level; horizontal coordinate, Attention, indicates the level of attention reached divided to sections (4–11, 12–19, 20–28, 29–36, 37–44, 45–52, 53–60, 61–68, 69–76, 77–84, 85–92, 93–100). (b) A representative memory task. Here, the subject was asked to write onto her memory the string “11010101” and then read it. This specific task was carried out without errors (25% of all tasks were error-free). (c) Velocity analysis from 3 representative short tasks, showing the transition between attention levels slowing down with time. (d) A plot of mean velocity vs. subject age, showing no correlation between these parameters. (e) Analysis of the abundance of errors in writing tasks, showing that ∼25% of the tasks were error-free, and ∼33% of the tasks had 1 incorrect bit.

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