Table 2 Description of the fields present in the ‘.mat’ files for MEG_mat folder.

From: A magnetoencephalography dataset for motor and cognitive imagery-based brain-computer interface

Field Name

Type & Size

Description

label

cell array [306 × 1]

MEG Channel labels

time

cell array [1 × 200]

Time stamps in accordance with cue

trail

cell array [1 × 200]

MEG data for 200 trials

fsample

array [1]

Sampling frequency

trialinfo

array [200 × 1]

Class labels of 200 trials

grad

structure [1 × 1]

A structure containing detailed information about the MEG sensors

trialclass

cell array [4 × 2]

Classes in number and string information about the MEG sensors