| Title |
The Impact of Different Visual Feedbacks in User Training on Motor Imagery Control in BCI
|
|---|---|
| Published in |
Applied Psychophysiology and Biofeedback, October 2017
|
| DOI | 10.1007/s10484-017-9383-z |
| Pubmed ID | |
| Authors |
Dariusz Zapała, Piotr Francuz, Ewelina Zapała, Natalia Kopiś, Piotr Wierzgała, Paweł Augustynowicz, Andrzej Majkowski, Marcin Kołodziej |
| Abstract |
The challenges of research into brain-computer interfaces (BCI) include significant individual differences in learning pace and in the effective operation of BCI devices. The use of neurofeedback training is a popular method of improving the effectiveness BCI operation. The purpose of the present study was to determine to what extent it is possible to improve the effectiveness of operation of sensorimotor rhythm-based brain-computer interfaces (SMR-BCI) by supplementing user training with elements modifying the characteristics of visual feedback. Four experimental groups had training designed to reinforce BCI control by: visual feedback in the form of dummy faces expressing emotions (Group 1); flashing the principal elements of visual feedback (Group 2) and giving both visual feedbacks in one condition (Group 3). The fourth group participated in training with no modifications (Group 4). Training consisted of a series of trials where the subjects directed a ball into a basket located to the right or left side of the screen. In Group 1 a schematic image a face, placed on the controlled object, showed various emotions, depending on the accuracy of control. In Group 2, the cue and targets were flashed with different frequency (4 Hz) than the remaining elements visible on the monitor. Both modifications were also used simultaneously in Group 3. SMR activity during the task was recorded before and after the training. In Group 3 there was a significant improvement in SMR control, compared to subjects in Group 2 and 4 (control). Differences between subjects in Groups 1, 2 and 4 (control) were insignificant. This means that relatively small changes in the training procedure may significantly impact the effectiveness of BCI control. Analysis of behavioural data acquired from all participants at training showed greater effectiveness in directing the object towards the right side of the screen. Subjects with the greatest improvement in SMR control showed a significantly lower difference in the accuracy of rightward and leftward movement than others. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Italy | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 90 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 90 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 11 | 12% |
| Researcher | 10 | 11% |
| Student > Bachelor | 10 | 11% |
| Student > Ph. D. Student | 9 | 10% |
| Student > Doctoral Student | 4 | 4% |
| Other | 8 | 9% |
| Unknown | 38 | 42% |
| Readers by discipline | Count | As % |
|---|---|---|
| Neuroscience | 17 | 19% |
| Engineering | 11 | 12% |
| Computer Science | 5 | 6% |
| Psychology | 5 | 6% |
| Medicine and Dentistry | 4 | 4% |
| Other | 8 | 9% |
| Unknown | 40 | 44% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 28 October 2017.
All research outputs
#19,246,640
of 23,849,058 outputs
Outputs from Applied Psychophysiology and Biofeedback
#301
of 355 outputs
Outputs of similar age
#253,974
of 329,947 outputs
Outputs of similar age from Applied Psychophysiology and Biofeedback
#4
of 4 outputs
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So far Altmetric has tracked 355 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 13.1. This one is in the 7th percentile – i.e., 7% of its peers scored the same or lower than it.
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