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Validation of Wireless Sensors for Psychophysiological Studies

2019; Multidisciplinary Digital Publishing Institute; Volume: 19; Issue: 22 Linguagem: Inglês

10.3390/s19224824

1424-8220

Pedro Silva Moreira, Pedro Chaves, Rúben Dias, N. S. Dias, Pedro R. Almeida,

EEG and Brain-Computer Interfaces

James One (MindProber Labs) is a wireless psychophysiological device comprising two sensors: one measuring electrodermal activity (EDA), the other photoplethysmography (PPG). This paper reports the validation of James One's EDA sensor by comparing its signal against a research grade polygraph. Twenty participants were instructed to perform breathing exercises to elicit the modulation of EDA and heart rate, while the physiological signal was captured simultaneously on James One and a Biopac MP36. The resulting EDA and PPG records collected from both systems were comprehensively compared. Results suggest that James One captures EDA signal with a quality comparable to a research grade equipment, this constituting a reliable means of capturing data while minimizing setup time and intrusiveness.