Background
Related work
Objective
Methods
Participants
Experimental setup
Title | Specification | Mounting position |
---|---|---|
Sampling rate Hz | 256 | |
Analog input channel ch | 17 | |
Mounting position | ch1 | F7 |
ch2 | F3 | |
ch3 | Fz | |
ch4 | F4 | |
ch5 | F8 | |
ch6 | T7 | |
ch7 | C3 | |
ch8 | Cz | |
ch9 | C4 | |
ch10 | T8 | |
ch11 | P3 | |
ch12 | Pz | |
ch13 | P4 | |
ch14 | Oz | |
ch15 | Acceleration sensor ch1 (X-axis) | |
ch16 | Acceleration sensor ch2 (Y-axis) | |
ch17 | Acceleration sensor ch3 (Z-axis) | |
GND | Nz |
Experimental task
Experimental condition
Analysis
Movement-related cortical potential (MRCP)
Support vector machine (SVM)
Judgment of movement from acceleration
Results and discussion
Subject name | Detection rate for shift time r % | ||||
---|---|---|---|---|---|
70 ms | 140 ms | 210 ms | 280 ms | 350 ms | |
Average all subjects | 70.9 | 72.0 | 71.8 | 72.9 | 72.5 |
Subject A | 69.0 | 68.0 | 69.0 | 67.5 | 73.5 |
Subject B | 65.6 | 69.9 | 69.4 | 69.4 | 65.1 |
Subject C | 78.2 | 78.2 | 77.1 | 81.9 | 79.3 |