Classification for Memory Activities: Experiments and EEG Analysis Based on Networks Constructed via Phase-Locking Value

Figure 4

Illustration of the memory task experiment paradigm. Every experiment consists 4 trials, each trial includes 16 sections, and each section includes 3 blocks of 3 s memorization block, 1 s retention block, and 3 s match block sequentially. In trials 1-3, both the target and the stimulus are colored digit series, with lengths 1, 2, and 3, respectively, corresponding to ascending memory loads. In trial 4, both targets and stimulus are colored English characters, representing a different target modality.