start_time: value: 0.0 unit: "s" electrode_group_id: 4 electrode_identities: - 16 - 17 - 18 - 19 electrode_idx: - 15 - 16 - 17 - 18 stop_time: value: 1211.282 unit: "s" sample_rate: value: 30000.0 unit: "Hz"