Single-Trial Analysis of Bioelectromagnetic Signals: The Quest for Hidden Information - Modeling in Computational Biology and Biomedicine - page 245

11.2

200

5.6

150

0

100

5.6

50

11. 2

4.8

4.8
200 100 0 100 200 300

Time (ms)

400 500 600 700

Fig. 7.9 Raster plot of single-trial P300 on EEG recorded in the fMRI scanner, sorted by response
time (response time is indicated by a black line ). Single-trial P300 latencies are shown with a cross.
The event related potential (average across trials) is shown below the raster plot. This information
was used in [ 4 ] in order to detect regions where fMRI signals and P300 parameters are co-varying

a b

Fig. 7.10 Illustration of latency and amplitude effects on simulated waves ( a ) 30 trials with
different conditions 1: fixed amplitude and latency 2: amplitude fluctuations 3: latency fluctuations.
( b ) Corresponding event-related potentials (i.e., averages across trials). Conditions 2 and 3 have
a similar amplitude decrease with respect to condition 1, even though the underlying mechanisms
are very different