Oded Ghitza, Ph.D.

photo of Dr. Ghitza

Research Professor, Biomedical Engineering

Cortical & Computational Decoding of Speech
Hearing Research Center

B.Sc, M.Sc, Ph.D Electrical Engineering, Tel Aviv University
Phone: (617) 358-1948
Email: oghitza@bu.edu
Home Page
Office: ERB 416; Office hours: By appointment
Curriculum Vitae

Research Interests

Decoding speech using neuronal oscillations; Hierarchical neuronal oscillators and the basis for cortical computation; Analysis of MEG signals recorded while performing a speech perception task; Predicting consonant confusions in noise; Closed‐loop auditory models for robust automatic speech recognition; Modeling damaged cochleae using speech‐governed methodologies.

Current Research

Dr. Ghitza’s current research focuses on the formulation of cortical computation principles that underlie the speech decoding process and that are capable of predicting human performance in speech perception tasks.

Selected Recent Publications

Farbood, M. F., Rowland, J., Marcus, G., Ghitza, O. and Poeppel, D. (2014). “Decoding time for the identification of musical key.” Atten Percept Psychophys. doi: 10.3758/s13414-014-0806-0

Ghitza, O. (2014). “Behavioral evidence for the role of cortical theta oscillations in determining auditory channel capacity for speech” Front. Psychol. 5:652. doi:10.3389/fpsyg.2014.00652

Jepsen, M. L., Dau, T. and Ghitza, O. (2014). “Refining a model of hearing impairment using speech psychophysics” J. Acoust. Soc. Am., 135 (4), EL179

Doelling, K. B., Arnal, L. H., Ghitza, O. and Poeppel, D. (2014). “Acoustic landmarks drive delta–theta oscillations to enable speech comprehension by facilitating perceptual parsing” NeuroImage, 85:761–768. doi: 10.1016/j.neuroimage.2013.06.035

Ghitza O. “The theta-syllable: a unit of speech information defined by cortical function.Front. Psychol. 4:138. (2013) doi: 10.3389/fpsyg.2013.00138

Ghitza O, Giraud A-L and Poeppel D. “Neuronal oscillations and speech perception: critical-band temporal envelopes are the essence” Front.Hum.Neurosci 6:340. (2013) doi: 10.3389/fnhum.2012.00340

Ghitza O. “On the role of theta-driven syllabic parsing in decoding speech: intelligibility of speech with a manipulated modulation spectrum” Front. Psychology 3:238. (2012) doi: 10.3389/fpsyg.2012.00238

Ghitza, O.Linking speech perception and neurophysiology: speech decoding guided by cascaded oscillators locked to the input rhythmFront. Psychology. 2: 130. (2011) doi: 10.3389/fpsyg.2011.00130

Ghitza, O. and Greenberg, S. “On the possible role of brain rhythms in speech perception: Intelligibility of time compressed speech with periodic and aperiodic insertions of silencePhonetica. 66: 113–126. (2009) doi:10.1159/000208934

Shamir, M., Ghitza, O., Epstein, S. and Kopell, N. “Representation of time-varying stimuli by a network exhibiting oscillations on a faster time scalePLoS Comput Biol. 5 (5). (2009) doi:10.1371/journal.pcbi.1000370

Messing, D. P., Delhorne, L., Bruckert, E., Braida, L. D. and Ghitza, O. “A nonlinear efferent‐inspired model of the auditory system; matching human confusions in stationary noiseSpeech Communication. 51: 668‐683. (2009) doi:10.1016/j.specom.2009.02.002

Rix, A. W., Beerends, J. G., Kim, D.‐S., Kroon, P. and Ghitza, O. “Objective Assessment of Speech and Audio Quality – Technology and ApplicationsIEEE Trans. Audio, Speech and Language Proc. SAP‐14 (6), 1890‐1901. (2006)

Ghitza, O.On the upper cutoff frequency of the auditory critical‐band envelope detectors in the context of speech perceptionJ. Acoust. Soc. Am. 110 (3), 1628‐1640. (2001)

Ghitza, O. and Sondhi, M. M. “On the perceptual distance between speech segmentsJ. Acoust. Soc. Am. 101 (1), 522‐529. (1997)

Ghitza, O.Auditory models and human performance in tasks related to speech coding and speech recognitionIEEE Trans. on Speech and Audio, SAP‐2 (1). Special issue on Neural networks for Speech Processing, 115‐132. (1994)