A compact electroencephalogram recording device with integrated audio stimulation system | Zendy

Antti Paukkunen | Zendy; Anttu A. Kurttio | Zendy; Miika Leminen | Zendy; Raimo Sepponen | Zendy

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A compact electroencephalogram recording device with integrated audio stimulation system

Author(s) -

Antti Paukkunen,

Anttu A. Kurttio,

Miika Leminen,

Raimo Sepponen

Publication year - 2010

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.3436634

Subject(s) - computer science , interface (matter) , computer hardware , data acquisition , jitter , personal computer , bluetooth , noise (video) , headphones , usb , wireless , real time computing , electrical engineering , telecommunications , software , artificial intelligence , image (mathematics) , bubble , maximum bubble pressure method , parallel computing , engineering , operating system , programming language

A compact (96 x 128 x 32 mm(3), 374 g), battery-powered, eight-channel electroencephalogram recording device with an integrated audio stimulation system and a wireless interface is presented. The recording device is capable of producing high-quality data, while the operating time is also reasonable for evoked potential studies. The effective measurement resolution is about 4 nV at 200 Hz sample rate, typical noise level is below 0.7 microV(rms) at 0.16-70 Hz, and the estimated operating time is 1.5 h. An embedded audio decoder circuit reads and plays wave sound files stored on a memory card. The activities are controlled by an 8 bit main control unit which allows accurate timing of the stimuli. The interstimulus interval jitter measured is less than 1 ms. Wireless communication is made through bluetooth and the data recorded are transmitted to an external personal computer (PC) interface in real time. The PC interface is implemented with LABVIEW and in addition to data acquisition it also allows online signal processing, data storage, and control of measurement activities such as contact impedance measurement, for example. The practical application of the device is demonstrated in mismatch negativity experiment with three test subjects.

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