Joaquin Valderrama-Valenzuela
PhD
Biographic Notes
Joaquin is a Research Electrophysiologist at the National Acoustic Laboratories in the Assessment section. He has two Bachelor of Science degrees in Telecommunication Engineering and Business Administration from the European University of Madrid (Spain, 2008), a Master of Science in Multimedia Technologies from the University of Granada (Spain, 2010), a Specialist Diploma in Audiology from the University of Salamanca (Spain, 2015), and a PhD from the University of Granada (Spain, 2014).
His main research fields of interest include analysis of auditory evoked responses in different recording conditions, signal processing methods for artifact rejection and neural response detection, cochlear implant technologies, and cognition.
Selected Publications
Valderrama, J., de la Torre, A., Medina, C., Segura, J.C., Thornton, A.R.D. Selective processing of auditory evoked responses with iterative-randomized stimulation and averaging: A strategy for evaluating the time-invariant assumption. Hearing Research (2016), 333, 66-76.
Valderrama, J., de la Torre, A., Alvarez, I., Segura, J.C., Thornton, A.R.D, Sainz, M., Vargas, J.L. Auditory brainstem and middle latency responses recorded at fast rates with randomized stimulation. Journal of the Acoustical Society of America (2014), 136, 3233-3248.
Valderrama, J., de la Torre, A., Alvarez, I., Segura, J.C, Sainz, M., Vargas, J.L. A flexible and inexpensive high-performance auditory evoked response recording system appropriate for research purposes. Biomedical Engineering/Biomedizinische Technik (2014), 59, 447-459.
Valderrama, J., de la Torre, A., Alvarez, I., Segura, J.C., Thornton, A.R.D., Sainz, M., Vargas, J.L. Automatic quality assessment and peak identification of auditory brainstem responses with fitted parametric peaks. Computer Methods and Programs in Biomedicine (2014), 114, 262-275.
Valderrama, J., de la Torre, A., Alvarez, I., Segura, J.C., Thornton, A.R.D., Sainz, M., Vargas, J.L. A study of adaptation mechanisms based on ABR recorded at high stimulation rate. Clinical Neurophysiology (2014), 125, 805-813.
Valderrama, J., Alvarez, I., de la Torre, A., Segura, J.C., Sainz, M., Vargas, J.L. Recording of auditory brainstem response at high stimulation rates using randomized stimulation and averaging. Journal of the Acoustical Society of America (2012), 132, 3856-3865.
Valderrama, J., Alvarez, I., de la Torre, A., Segura, J.C., Sainz, M., Vargas, J.L. Educational approach of a BAER recording system based on experiential learning. Technics Technologies Education Management (2011), 6, 876-889.
Alvarez, I., de la Torre, A., Valderrama, J., Roldan, C., Sainz, M., Segura, J.C., Vargas, J.L. Changes over time of the refractory properties measured from ECAP in Pulsar CI100 cochlear implant recipients. Journal of International Advanced Otology (2011), 7, 398-407.
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