TY  - JOUR
PY  - 2012//
TI  - Psychological predictors of SMR-BCI performance
JO  - Biological psychology
A1  - Hammer, Eva M.
A1  - Halder, Sebastian
A1  - Blankertz, Benjamin
A1  - Sannelli, Claudia
A1  - Dickhaus, Thorsten
A1  - Kleih, Sonja
A1  - Müller, Klaus-Robert
A1  - Kübler, Andrea
SP  - 80
EP  - 86
VL  - 89
IS  - 1
N2  - BACKGROUND: After about 30 years of research on Brain-Computer Interfaces (BCIs) there is little knowledge about the phenomenon, that some people - healthy as well as individuals with disease - are not able to learn BCI-control. To elucidate this "BCI-inefficiency" phenomenon, the current study investigated whether psychological parameters, such as attention span, personality or motivation, could predict performance in a single session with a BCI controlled by modulation of sensorimotor rhythms (SMR) with motor imagery. METHODS: A total of N=83 healthy BCI novices took part in the session. Psychological parameters were measured with an electronic test-battery including clinical, personality and performance tests. Predictors were determined by binary logistic regression analyses. RESULTS: The output variable of the Two-Hand Coordination Test (2HAND) "overall mean error duration" which is a measure for the accuracy of fine motor skills accounted for 11% of the variance in BCI-inefficiency. The Attitudes Towards Work (AHA) test variable "performance level" which can be interpreted as a degree of concentration and a neurophysiological SMR predictor were also identified as significant predictors of SMR BCI performance. CONCLUSION: Psychological parameters as measured in this study play a moderate role for one-session performance in a BCI controlled by modulation of SMR.<p />  <p>Language: en</p>
LA  - en
SN  - 0301-0511
UR  - http://dx.doi.org/10.1016/j.biopsycho.2011.09.006
ID  - ref1
ER  -