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Figure 3a. Signal reaction time (RT, s) as a function of the signal-to-noise ratio (LSNt) and the time differential between the beginning of the presentation of the task and of the signal (DTAS) as parameters. Signal: 1 kHz sinus tone noise: pink noise Task: Single arithmetical task Subjects: 20 k.A.: no task Figure 3b. Signal reaction time (RT, s) as a function of the time differential between the beginning of presentation of the task and of the signal (DTAS) and the signal-to-noise ratio (LSNt) as parameters. Signal: 1 kHz sinus tone noise: pink noise Task: Single arithmetical task Subjects: 20 k.A.: no task

Figure 3a. Signal reaction time (RT, s) as a function of the signal-to-noise ratio (LSNt) and the time
differential between the beginning of the presentation of the task and of the signal (DTAS) as
parameters.
Signal: 1 kHz sinus tone noise: pink noise
Task: Single arithmetical task Subjects: 20 k.A.: no task
Figure 3b. Signal reaction time (RT, s) as a function of the time differential between the beginning of
presentation of the task and of the signal (DTAS) and the signal-to-noise ratio (LSNt) as parameters.
Signal: 1 kHz sinus tone noise: pink noise
Task: Single arithmetical task Subjects: 20 k.A.: no task