| dc.creator | Felix, Leonardo Bonato | |
| dc.creator | Ranaudo, Fernando de Souza | |
| dc.creator | D’affonseca Netto, Aluizio | |
| dc.creator | Sá, Antonio Mauricio Ferreira Leite Miranda de | |
| dc.date | 2018-03-28T14:20:21Z | |
| dc.date | 2018-03-28T14:20:21Z | |
| dc.date | 2014-03-26 | |
| dc.date.accessioned | 2023-09-27T20:44:46Z | |
| dc.date.available | 2023-09-27T20:44:46Z | |
| dc.identifier | 01650270 | |
| dc.identifier | https://doi.org/10.1016/j.jneumeth.2014.03.014 | |
| dc.identifier | http://www.locus.ufv.br/handle/123456789/18573 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8946930 | |
| dc.description | Auditory selective attention is the human ability of actively focusing in a certain sound stimulus while avoiding all other ones. This ability can be used, for example, in behavioral studies and brain-machine interface. In this work we developed an objective method – called Spatial Coherence – to detect the side where a subject is focusing attention to. This method takes into consideration the Magnitude Squared Coherence and the topographic distribution of responses among electroencephalogram electrodes. The individuals were stimulated with amplitude-modulated tones binaurally and were oriented to focus attention to only one of the stimuli. The results indicate a contralateral modulation of ASSR in the attention condition and are in agreement with prior studies. Furthermore, the best combination of electrodes led to a hit rate of 82% for 5.03 commands per minute. Using a similar paradigm, in a recent work, a maximum hit rate of 84.33% was achieved, but with a greater a classification time (20 s, i.e. 3 commands per minute). It seems that Spatial Coherence is a useful technique for detecting focus of auditory selective attention. | |
| dc.format | pdf | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Journal of Neuroscience Methods | |
| dc.relation | v. 229, p. 28-32, May 2014 | |
| dc.rights | Elsevier B.V. All rights reserved. | |
| dc.subject | Selective attention | |
| dc.subject | Spatial Coherence | |
| dc.subject | Auditory steady-state response | |
| dc.title | A spatial approach of magnitude-squared coherence applied to selective attention detection | |
| dc.type | Artigo | |
