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. 2022 Apr 18;17(4):e0266693. doi: 10.1371/journal.pone.0266693

Fig 1. Schematic illustrations of the visual stimuli and a diagram showing the MEG acquisitions.

Fig 1

Visual stimuli used to induce apparent motion (AM) were created using two frames: Frame 1 had a fixation point (FP) and a bar offset 1 degree (visual angle) from that point; Frame 2 had an FP at the same location as in Frame 1 and a bar offset 2 degrees from that point. Frames 1 and 2 were presented alternately for 1 to 1.5 s with an interstimulus interval of 16–44 ms. Trigger pulses for the averaging of magnetic responses occurred whenever the frame changed.