Representation of voice pitch in discharge patterns of auditory-nerve fibers

  title={Representation of voice pitch in discharge patterns of auditory-nerve fibers},
  author={Michael I. Miller and Murray B. Sachs},
  journal={Hearing Research},

Neural correlates of the pitch of complex tones. I. Pitch and pitch salience.

The temporal discharge patterns of auditory nerve fibers in Dial-anesthetized cats were studied in response to periodic complex acoustic waveforms that evoke pitches at their fundamental frequencies, suggesting that existence of a central processor capable of analyzing these interval patterns could provide a unified explanation for many different aspects of pitch perception.

Improved neural representation of vowels in electric stimulation using desynchronizing pulse trains.

Recording ANF responses to pulse trains modulated by bandpass filtered vowels suggests that a DPT-enhanced strategy may achieve good representation of the stimulus fine structure in the temporal discharge patterns of ANFs for frequencies up to 1000 Hz.

Neural processing of amplitude-modulated sounds.

The picture that emerges is that temporal modulations are a critical stimulus attribute that assists us in the detection, discrimination, identification, parsing, and localization of acoustic sources and that this wide-ranging role is reflected in dedicated physiological properties at different anatomical levels.

Temporal Coding of Voice Pitch Contours in Mandarin Tones

The difference between the number of LFPs and single neurons that encode the time-variant F0 voice pitch supports the notion of a transition at the level of IC from direct temporal coding in the spike trains of individual neurons to other form of neural representation.

The representation of concurrent vowels in the cat anesthetized ventral cochlear nucleus: evidence for a periodicity-tagged spectral representation.

A method of segregating two vowels is provided in which relative synchronization to the F0's is used to apportion discharge rate between the vowels, and results show that units' discharge rates reflect the energy within their tuning curves and the relative synchronization of units' responses to the two F0s favors the dominant vowel.

Human Frequency-Following Responses to Two-Tone Approximations of Steady-State Vowels

The results suggest that the scalp-recorded FFR may be used to evaluate not only neural encoding of speech sounds but also processes associated with cochlear nonlinearity.


Voiced vowel sounds are periodic and consist of harmonics of a fundamental frequency (FO). This fundamental frequency is determined by the rate at which the vocal folds are opening and closing and



Representation of stop consonants in the discharge patterns of auditory-nerve fibers.

The representation of the speech syllables /da/ and /ba/ in populations of auditory-nerve fibers was studied and the fine structure in the speech spectrum related to the pitch of the excitation source is maintained in these ALSR plots.

Representation of speech-like sounds in the discharge patterns of auditory-nerve fibers.

  • B. Delgutte
  • Physics
    The Journal of the Acoustical Society of America
  • 1980
Results demonstrate that a conceptualization of some basic properties of responses to simple acoustic stimuli is useful in interpreting qualitatively how certain characteristics of speech-like sounds can be coded.

Representation of steady-state vowels in the temporal aspects of the discharge patterns of populations of auditory-nerve fibers.

A simple calculation is described which combines rate, place, and temporal information to provide a good representation of the vowels' spectra, including a clear indication of at least the first two formant frequencies.

Encoding of steady-state vowels in the auditory nerve: representation in terms of discharge rate.

Rate versus level functions for units with CFs above the first formant can saturate at rates less than the saturation rate to CF to-es or they can be nonmonotonic; these effects are most likely produced by the same mechanism as that involved in two-tone suppression.

A central spectrum model: a synthesis of auditory-nerve timing and place cues in monaural communication of frequency spectrum.

Detailed analysis demonstrates that efficient probabilistic processing of the central spectrum described known psychophysical properties of frequency measurement in discrimination and periodicity pitch experiments.


This paper shall review some recent studies of speech encoding in the auditory nerve and consider representations of speech spectra in terms of average discharge rates of fiber responses and in Terms of temporal (phase-locked) properties of the discharge patterns.

Speech discrimination in deaf subjects with cochlear implants.

  • D. Eddington
  • Physics
    The Journal of the Acoustical Society of America
  • 1980
The results presented indicate that the multichannel system tested shows more promise of approaching free running speech by the profoundly deaf than the single-channel scheme.

Frequencies dominant in the perception of the pitch of complex sounds.

  • R. Ritsma
  • Physics
    The Journal of the Acoustical Society of America
  • 1967
Measurements carried out with pulsive signals to determine the spectral region associated with dominant pitch perception found that, for a given fe, the minimum sensation level for dominant pitch Perception was found.

An optimum processor theory for the central formation of the pitch of complex tones.

  • J. L. Goldstein
  • Mathematics
    The Journal of the Acoustical Society of America
  • 1973
A theory was formulated for the central formation of the pitch of complex tones, i.e., periodicity pitch. This theory is a logical deduction from statistical estimation theory of the optimal estimate