S1 File

Arrival times of the visual signals. Each file consists of three rows: time (sampling rate of 1kHz), signals through the intermediate devices, direct signals which did not pass-through intermediate devices. Visual signals were transmitted from site A (Hokkaido University Medical and Dental Research Building) to site B (Hokkaido University Hospital) in hos2res(session number).mat. files and were transmitted in the opposite direction in res2hos(session number).mat. files. Time differences between onsets (about 77 ms) of signals in the second and third rows correspond to the visual signal delays. The 500th to 700th onsets of each file’s data (1,000 data in 5 sessions for each direction) were used to make histograms of Fig 2.