Auditory Electrophysiology Lab

Publications

Journal Articles

  1. Gandour, J.T., & Krishnan, A. (In Press). Neural Correlates of Tone Perception, A Window on Pitch Processing in the Brain. Brill’s Encyclopedia of Chinese Language and Linguistics.
  2. Ananthakrishnan, S., & Krishnan, A. (In Press). Degradation in neural representation of envelope and temporal fine structure in hearing impaired individuals. Ear & Hearing.
  3. Krishnan, A., Gandour, J.T., & Suresh, C. (2015). Experience-dependent enhancement of pitch-specific responses in the auditory cortex is limited to acceleration rates in normal voice range. Neuroscience, 303(10), 433-455.
  4. Krishnan, A., Gandour, J.T., & Suresh, C. (2015). Pitch processing of dynamic lexical tones in the auditory cortex is influenced by sensory and extrasensory processes. European Journal of Neuroscience, 41(11), 1496-1504.
  5. Krishnan, A., Gandour, J.T., Ananthakrishnan, S., & Venkatakrishnan, V. (2015). Language experience enhances early cortical pitch-dependent responses. J. Neurolinguistics, 33, 128-148.
  6. Krishnan, A., & Gandour, J.T. (2014). Language experience shapes processing of pitch relevant information in the human brainstem and auditory cortex: Electrophysiological evidence. Acoustics Australia, 42(3), 187-199.
  7. Krishnan, A., Gandour J.T., & Suresh, C. (2014). Cortical pitch response components show differential sensitivity to native and nonnative pitch contours. Brain & Language, 138, 51-60.
  8. Krishnan, A., Gandour, J.T., Ananthakrishnan, S., & Venkatakrishnan, V. (2014). Cortical pitch response components index stimulus onset/offset and dynamic features of pitch contours. Neuropsychologia, 59,1-12.
  9. Bones, O., Hopkins, K., Krishnan, A., & Plack, C.J. (2014). Phase locked neural activity in the human brainstem predicts preference for musical consonance. Neuropsychologia, 58, 23-32.
  10. Gandour, J.T., & Krishnan, A. (2014). Neural bases of lexical tone. In H. Winskel & P. Padakannaya (Eds.), South and Southeast Asian psycholinguistics (pp. 339-349). Cambridge, UK: Cambridge University Press.
  11. 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.
  12. Krishnan, A., Gandour, J.T., & Bidelman, G.M. (2012). Experience-dependent plasticity in pitch encoding: from brainstem to auditory cortex. NeuroReport, 23, 498-502.
  13. Smalt, C.J., Krishnan, A., Bidelman, G.M., Ananthakrishnan, S., & Gandour, J.T. (2012). Neural correlates of cochlear distortion products and their influence on representation of pitch relevant information in the human brainstem. Hearing Research, 292, 26-34.
  14. Bidelman, G.M., Gandour, J.T., & Krishnan, A. (2011). Musicians demonstrate experience-dependent brainstem enhancement of musical scale tones within continuously gliding pitch. Neuroscience Letters, 503(3), 203-207.
  15. Krishnan, A., Gandour, J.T., Ananthakrishnan, S., Bidelman, G., & Smalt, C. (2011). Linguistic status of timbre influences pitch encoding in the brainstem. NeuroReport, 22, 801-803.
  16. Bidelman, G., Gandour, J., & Krishnan, A. (2011). Musicians and tone-language speakers share enhanced brainstem encoding but not perceptual benefits for musical pitch. Brain & Cognition, 77(1), 1-10.
  17. Krishnan, A., Gandour, J.T., Ananthakrishnan, S., Bidelman, G., & Smalt, C. (2011). Functional ear (a)symmetry in brainstem neural activity relevant to encoding of voice pitch: A precursor for hemispheric specialization? Brain and Language, 119, 226-231.
  18. Bidelman, G.M., & Krishnan, A. (2011). Brainstem correlates of behavioral and compositional preferences of musical harmony. NeuroReport, 22(5), 212-216.
  19. Krishnan, A., & Plack, C. (2011). Neural encoding in the human brainstem relevant to the pitch of complex tones. Hearing Research, 275(1-2), 110-119.
  20. Bidelman, G.M., Krishnan, A., & Gandour, J. (2011). Enhanced brainstem encoding predicts musicians’ perceptual advantages with pitch. European Journal of Neuroscience, 33, 530-538.
  21. Bidelman, G.M., & Krishnan, A. (2011). Effects of reverberation on brainstem representation of speech in musicians and non-musicians. Brain Research,1355, 112-125.
  22. Bidelman, G., Gandour, J., & Krishnan, A. (2011). Cross-domain effects of music and language experience on the representation of pitch in the human auditory brainstem. J. Cog. Neuroscience, 23(2), 425-434.
  23. Krishnan, A., Smalt, C., Bidelman, G., & Gandour, J. (2010). Language-dependent pitch encoding advantage in the brainstem is not limited to acceleration rates that occur in natural speech. Brain and Language, 114(3), 193-198.
  24. Krishnan, A., Gandour, J., & Bidelman, G. (2010). Neural representation of pitch salience in the human brainstem revealed by psychophysical and electrophysiological indices. Hear. Res., 268, 60-66.
  25. Gandour, J.T., Krishnan, A., & Bidelman, G.M. (2010). Neural substrates of lexical tone as revealed at different stages of cortical and subcortical processing. In L.H. Tan (Chair), Cognitive neuroscience of language (pp. 22-24). Symposium conducted at the 7th International Conference on Cognitive Science, Beijing, China.
  26. Clinard, C., Tremblay, K., & Krishnan, A. (2010). Aging alters the perception and physiological representation of frequency: Evidence from human FFR recordings. Hear. Res., 264, 48-55.
  27. Krishnan, A., Gandour, J., & Bidelman, G. (2010). The effects of tone language experience on pitch processing in the brainstem. J. Neurolinguistics. 23, 81-95.
  28. Krishnan, A., & Agrawal, S. (2010). Human frequency-following response to speech-like sounds: correlates of off-frequency masking. Journal of Audiology & Neuro-Otology, 15, 221-228.
  29. Krishnan, A., Gandour, J., & Bidelman, G. (2010). Brainstem pitch representation in native speakers of Mandarin is less susceptible to degradation of stimulus temporal regularity. Brain Res., 1313, 124-133.
  30. Chandrasekaran, B., Gandour, J.T., & Krishnan, A. (2009). Neuroplasticity in the preattentive processing of linguistic pitch: Evidence from cross-language and cross-domain studies. In Festschrift in linguistics, applied linguistics, language and literature in honor of Prof. Dr. Udom Warotamasikkhadit (pp. 68-86). Bangkok: Saha Thammik.
  31. Bidelman, G., & Krishnan, A. (2009). Neural correlates of consonance, dissonance, and the hierarchy of musical pitch in the human brainstem. J. Neuroscience, 29(42),13165-13171.
  32. Chandrasekaran, B., Krishnan, A., & Gandour, J.T. (2009). Sensory versus phonetic processing of linguistic pitch as reflected by the mismatch negativity. Ear and Hearing, 30(5), 552-558.
  33. Krishnan, A., & Gandour, J.T. (2009). The role of the auditory brainstem in processing linguistically-relevant pitch patterns. Brain and Language, 110, 135-148.
  34. Madhavi, B., Krishnan, A., & Weber-Fox, C. (2009). Brainstem correlates of temporal auditory processing in children with specific language impairment. Developmental NeuroScience, 13(1), 77-91.
  35. Krishnan, A., Swaminathan, J., & Gandour, J.T. (2009). Experience-dependent enhancement of pitch representation in the brainstem is not specific to speech context. Journal of Cognitive Neuroscience, 21(6), 1092-1105.
  36. Krishnan, A., Gandour, J.T., Bidelman, G.M., & Swaminathan, J. (2009). Experience dependent neural representation of dynamic pitch in the brainstem. Neuroreport, 20, 400-413.
  37. Chandrasekaran, B., Krishnan, A., & Gandour, J.T. (2009). Relative influence of musical and linguistic experience on early cortical processing of pitch contours. Brain and Language, 108, 1-9.
  38. Krishnan, A., & Plack, C. (2009). Auditory brainstem correlates of basilar membrane nonlinearity. Journal of Audiology and Neuro-Otology, 14, 88-97.
  39. Elsisy, H., & Krishnan, A. (2008). Comparison of response characteristics of acoustical and neural distortion product at 2f1-f2 in normal hearing adults. International Journal of Audiology, 47, 431-438.
  40. Swaminathan, J., Krishnan, A., & Gandour, J.T. (2008). Pitch encoding in speech and nonspeech contexts in the human auditory brainstem. Neuroreport, 19(11), 1163-1167.
  41. Lucas, J.R., Freeberg, T.M., Long, G.R., & Krishnan, A. (2007). Seasonal variation in avian auditory evoked responses to tones: a comparative analysis of Carolina chickadees, tufted titmice, and white-breasted nuthatches. J Comp Physiol A Neuroethol Sens Neural Behav Physiol, 193, 201-215.
  42. Swaminathan, J., Krishnan, A., & Gandour, J.T. (2007). Applications of static and dynamic iterated rippled noise to evaluate pitch encoding in the human auditory brainstem. IEEE Transactions on Biomedical Engineering, 55(1), 271-287.
  43. Chandrasekaran, B., Gandour, J.T., & Krishnan, A. (2007). Neuroplasticity in the processing of pitch dimensions: A multidimensional scaling analysis of the mismatch negativity. Restorative Neurology and Neuroscience, 25(3/40), 195-210.
  44. Chandrasekaran, B., Krishnan, A., & Gandour, J.T. (2007). Experience-dependent neural plasticity is sensitive to shape of pitch contours. Neuroreport, 18(18), 1963-1967.
  45. Lucas, J.R., Freeberg, T.M., Long, G.R., & Krishnan, A. (2007). Seasonal variation in avian auditory evoked responses to tones: a comparative analysis of Carolina chickadees, tufted titmice, and white-breasted nuthatches. Journal of Comparative Physiology, 193(2), 201-215.
  46. Chandrasekaran, B., Krishnan, A., & Gandour, J.T. (2007). Mismatch negativity to pitch contours is influenced by language experience. Brain Research, 1128(1), 148-156.
  47. Xu, Y., Krishnan, A., & Gandour, J.T. (2006). Specificity of experience-dependent pitch representation in the brainstem. Neuroreport, 17(15), 1601-1605.
  48. Ranaweera, R.D., Talavage, T.M., & Krishnan, A. (2005). Features differentiate direction of finger movement in cued and self-paced tasks. Proceedings of the 2nd International IEEE EMBS Conference on Neural Engineering, Arlington, Virginia, 151-154.
  49. Krishnan, A., Xu, Y., Gandour, J.T., & Cariani, P. (2005). Encoding of pitch in the human brainstem is sensitive to language experience. Cognitive Brain Research, 25, 161-168.
  50. Wilson, J., & Krishnan, A. (2005). Human frequency following response to stimuli producing masking level difference. Journal of the American Academy of Audiology, 16, 184-195.
  51. Pandya, P.P., & Krishnan, A. (2004). Human frequency following response correlates of distortion product at 2f1-f2. Journal of the American Academy of Audiology, 15, 184-197.
  52. Krishnan, A., Xu, Y., Gandour, J.T., & Cariani, P. (2004). Human frequency following response: representation of pitch contours in Chinese tones. Hearing Research, 189, 1-12.
  53. Krishnan, A. (2002). Human frequency following response: Representation of steady-state vowels. Hearing Research, 166, 192-201.
  54. Freeberg, T.M., Lucas, J.R., Krishnan, A., & Long, G. (2002). A Comparative study of avian auditory brainstem responses: correlations with phylogeny and vocal complexity, and seasonal effects. Journal of Comparative Physiology, 188, 981-992.
  55. Plyler, P., & Krishnan, A. (2001). Human frequency following response: Representation of CV formant transitions in normal-hearing and hearing-impaired listeners. Journal of the American Academy of Audiology, 12, 523-533.
  56. Krishnan, A., & Parkinson, J. (2000). Human frequency following response: Representation of tonal sweeps. Journal of Audiology & Neuro-Otology, 5, 312-321.
  57. Krishnan, A. (1999). Human frequency following responses to two-tone approximations of steady-state vowels. Journal of Audiology and Neuro-Otology, 4, 95-103.
  58. Krishnan, A., & McDaniel, S. (1998). Binaural interaction in the human frequency following response: Effects of interaural intensity difference. Journal of Audiology and Neuro-Otology, 3, 291-299.
  59. Krishnan, A., & Durrant, J.J. (1994). Comparison of transducer radiation in a deaf subject and a resistor-network simulator. British Journal of Audiology, 28, 149-154.
  60. Krishnan, A., & Durrant, J.J. (1992). The frequency following response and the onset response: Evaluation of frequency specificity using a forward-masking paradigm. Ear & Hearing, 13(4), 228-232.
  61. Moore, E.J., & Krishnan, A. (1992). The I’ Potential of the brain-stem auditory evoked potential. Scandinavian Audiology, 21, 153-156.
  62. Krishnan, A., & Durrant, J.J. (1991). On the origin of wave II of the auditory brainstem responses. Ear & Hearing, 12(3), 174-179.
  63. Krishnan, A., & Gerken, G.M. (1987). Response enhancement and reduction of the ABR in a forward-masking paradigm. Electroencephalography & Clinical Neurophysiology, 66, 427-439.
  64. Krishnan, A., & Gerken, G.M. (1983). Post-Stimulatory effects on the auditory brainstem response: Partial masking and enhancement. Electroencephalography & Clinical Neurophysiology, 55(2), 223-226.

Manuscripts in Review

Krishnan, A., Gandour, J.T., & Chandan, S. (In Review). From brainstem to cortex: differences in neural representation of changes in pitch salience. Brain Research.

Manuscripts in Preparation

Krishnan, A., & Ananthakrishnan, S. Sensitivity of the human frequency following responses to positive and negative gain of iterated rippled noise. Hearing Research.

Krishnan, A., & Plack, C. Human brainstem correlates of pitch of inharmonic and frequency-shifted stimuli.

Book Chapters

Gandour J.T., & Krishnan, A. (2015). Tonal language processing. In G. Hickok & S.L. Small (Eds.), Neurobiology of Language (Chapter 87, 1095-1107). Boston: Academic Press.

Krishnan, A. (2006). Human frequency following response. In R.F. Burkard, M. Don, & J.J. Eggermont (Eds.), Auditory evoked potentials: Basic principles and clinical application (pp. 313-335). Baltimore: Lippincott Williams & Wilkins.

Moore, E.J., & Krishnan, A. (1983). Effects of ipsilateral and contralateral masking on the auditory brainstem responses. In E.J. Moore (Ed.), Bases of auditory brain-stem evoked responses (pp. 240-251). New York: Grune and Stratton.

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