Resumen

ARNAIZ MARQUEZ, Isabel; TORRES FORTUNY, Alejandro; VELARDE REYES, Ernesto  y  MARTINEZ MONTES, Eduardo. Implementing a new strategy for the automatic detection of auditory steady-state responses in the INFANTIX system. EAC [online]. 2021, vol.42, n.2, pp.1-16.  Epub 08-Sep-2021. ISSN 1815-5928.

Currently, the Electronics Department of the Cuban Center for Neurosciences (CNEURO) is involved in the process of developing and implementing the universal screening system INFANTIX, which will include in its battery of tests the Auditory Steady-State Responses (ASSR). This article presents the results obtained by modeling 84 strategies with high-potential in the detection of the steady-state response, which only three were identified with the best performance in the correct classification of a real sample. The strategies T2A 8192/2048/64, T2A 8192/1024/64 and T2A 8192/1024/32 based on normal averaging took only 9 averages to correctly classify the sample, reaching cutoff values of 2.72, 3.70 and 2.73 respectively for a 100% in both sensitivity and specificity. Finally, the T2A 8192/1024/32 strategy was selected as an alternative to be implemented in the STM32F429 microcontroller that manages the INFANTIX system control module because it requires less memory availability. Said strategy showed satisfactory results under real operating conditions.

Palabras clave : auditory steady-state responses; automatic detection; STM32F4 microcontroller; INFANTIX.

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