A Brain-Computer Interface Based on Bilateral Transcranial Doppler Ultrasound Myrden, Andrew J. B. ; Kushki, Azadeh ; Sejdić, Ervin ; Guerguerian, Anne-Marie ; Chau, Tom Abstract Publication: PLoS ONE Pub Date: September 2011 DOI: 10.1371/journal.pone.0024170 Bibcode: 2011PLoSO...624170M