1. Institute of Electronics and Telematics Engineering of Aveiro, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
2. Neurology Department, Hospital de S. Sebastião, CHEDV, R. Dr Cândido de Pinho, Santa Maria da Feira, Portugal
3. Secção Autónoma de Ciências da Saúde, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
4. Department of Electronics, Telecommunications and Informatics, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal