Faculty and Staff

Saradha Ananthakrishnan

Instructor

Education and Certification

• Doctor of Philosophy, Purdue University

• Doctor of Audiology, Purdue University 

• Bachelor of Science, Maharashtra University of Health Sciences            

Classes Taught

• SPPA 303 Hearing Science
• ACSD 714 Research Methods in Audiology

Professional Interests

• Characterization of the subcortical human frequency following response to varied speech signals in normal hearing and sensorineural hearing impairment.

• Statistical modeling of various demographic, behavioral and electrophysiological factors and sensorineural hearing loss.

• Neural plasticity in the auditory system

• Cortical potentials in normal hearing and hearing impaired populations; relationship between cortical and subcortical evoked potentials.

Recent Publications

• Krishnan, A., Bidelman, G. M., Smalt, C. J., Ananthakrishnan, S., & Gandour, J. T. (2012). Relationship between brainstem, cortical and behavioral measures relevant to pitch salience in humans. Neuropsychologia 50, 2849-2859.

• Smalt, C. J., Krishnan, A., Bidelman, G. M., Ananthakrishnan, S., & Gandour, J. T. (2012). Distortion products and their influence on representation of pitch-relevant information in the human brainstem for unresolved harmonic complex tones. Hearing Research 292, 26-34.

• Krishnan, A., Gandour, J. T., Ananthakrishnan, S., Bidelman, G. M., & Smalt, C. J. (2011). Functional ear (a) symmetry in brainstem neural activity relevant to encoding of voice pitch: A precursor for hemispheric specialization? Brain and language, 119(3), 226-231.

• Krishnan, A., Gandour, J. T., Ananthakrishnan, S., Bidelman, G. M., & Smalt, C. J. (2011). Linguistic status of timbre influences pitch encoding in the brainstem. NeuroReport, 22(16), 801.             

Manuscripts in preparation:

• Ananthakrishnan, S., Krishnan, A. Human frequency following response: Differential responses to positive and negative iterated rippled noise (IRN) stimuli.
• Ananthakrishnan, S., Krishnan, A., Bartlett, E. Brainstem neural encoding of envelope and temporal fine structure of complex stimuli is affected in sensorineural hearing impairment.

Presentations

• Ananthakrishnan, S., Luo, X., Krishnan, A. (2013). Frequency following response to vocoded speech. Poster presented at the Conference on Implantable Auditory Prostheses, Lake Tahoe, CA, July 14-19, 2013.

• Ananthakrishnan, S., Krishnan, A. (2012). Sub-cortical pitch encoding of speech sounds in the normal and impaired auditory systems. Poster presented at the 36th Meeting of the Association for Research in Otolaryngology (ARO), Baltimore, MD, February 16-20, 2013.

• Ananthakrishnan, S., Krishnan, A., Smalt, C.J., Bidelman, G.M. (2012).  Brainstem neural encoding of envelope and temporal fine structure of complex stimuli in normal and impaired ears. Poster presented at the 35th Meeting of the Association for Research in Otolaryngology (ARO), San Diego, California, February 25-29, 2012.

• Krishnan, A., Smalt, C.J., Bidelman, G.M., Ananthakrishnan, S., Gandour, J.T. (2012). Concurrent neural representations in auditory brainstem and cortex predict the perceptual salience of pitch. Poster presented at the 35th Meeting of the Association for Research in Otolaryngology (ARO), San Diego, California, February 25-29, 2012

• Ananthakrishnan, S., Krishnan, A., Gandour, J.T., Bidelman, G.M., Smalt, C.J. (2011).  Brainstem Origins of the Differential Hemispheric Laterality for Linguistic and Non Linguistic Pitch. Poster presented at
• 34th Meeting of the Association for Research in Otolaryngology (ARO), Baltimore, M.D., February 19-23, 2011
• 74th Annual Spring Convention of the Indiana Speech Language and Hearing Association (ISHA), Indianapolis, IN, March 30-April 2, 2011.

• Ananthakrishnan, S., Krishnan, A., Bidelman, G.M. (2010). Human Frequency Following Response: Differential Responses to Positive and Negative Iterated Rippled Noise (IRN) Stimuli.
• Poster presented at the 33rd Meeting of the Association for Research in Otolaryngology (ARO), Anaheim, California, February 6-10, 2010.
• Talk presented at Purdue University, Robert L. Ringel Symposium, April 30, 2010.