RT Journal Article
T1 Controlling a Mouse Pointer with a Single-Channel EEG Sensor
A1 Molina Cantero, Alberto J.
A1 Castro García, Juan A.
A1 Gómez Bravo, Fernando
A1 López de Ahumada Gutiérrez, Rafael
A1 Jiménez Naharro, Raúl
A1 Berrazueta Alvarado, Santiago
AB Goals: The purpose of this study was to analyze the feasibility of using the informationobtained from a one-channel electro-encephalography (EEG) signal to control a mouse pointer.We used a low-cost headset, with one dry sensor placed at the FP1 position, to steer a mousepointer and make selections through a combination of the user’s attention level with the detection ofvoluntary blinks. There are two types of cursor movements: spinning and linear displacement. Asequence of blinks allows for switching between these movement types, while the attention levelmodulates the cursor’s speed. The influence of the attention level on performance was studied.Additionally, Fitts’ model and the evolution of the emotional states of participants, among othertrajectory indicators, were analyzed. (2) Methods: Twenty participants distributed into two groups(Attention and No-Attention) performed three runs, on different days, in which 40 targets hadto be reached and selected. Target positions and distances from the cursor’s initial position werechosen, providing eight different indices of difficulty (IDs). A self-assessment manikin (SAM)test and a final survey provided information about the system’s usability and the emotions ofparticipants during the experiment. (3) Results: The performance was similar to some brain–computerinterface (BCI) solutions found in the literature, with an averaged information transfer rate (ITR)of 7 bits/min. Concerning the cursor navigation, some trajectory indicators showed our proposedapproach to be as good as common pointing devices, such as joysticks, trackballs, and so on. Onlyone of the 20 participants reported difficulty in managing the cursor and, according to the tests, mostof them assessed the experience positively. Movement times and hit rates were significantly better forparticipants belonging to the attention group. (4) Conclusions: The proposed approach is a feasiblelow-cost solution to manage a mouse pointer
PB MDPI
SN 1424-8220 (electrónico)
YR 2021
FD 2021
LK http://hdl.handle.net/10272/20273
UL http://hdl.handle.net/10272/20273
LA eng
NO Molina-Cantero, A. J., Castro-García, J. A., Gómez-Bravo, F., López-Ahumada, R., Jiménez-Naharro, R., & Berrazueta-Alvarado, S. (2021). Controlling a Mouse Pointer with a Single-Channel EEG Sensor. In Sensors (Vol. 21, Issue 16, p. 5481). MDPI AG. https://doi.org/10.3390/s21165481
DS Repositorio Institucional de la Universidad de Huelva
RD 14 jul 2026