The relative importance of neural temporal and place coding in auditory perception is still a matter of much debate. The current article is a compilation of viewpoints from leading auditory psychophysicists and physiologists regarding the upper frequency limit for the use of neural phase locking to code temporal fine structure in humans. While phase locking is used for binaural processing up to about 1500 Hz, there is disagreement regarding the use of monaural phase-locking information at higher frequencies. Estimates of the general upper limit proposed by the contributors range from 1500 to 10000 Hz. The arguments depend on whether or not phase locking is needed to explain psychophysical discrimination performance at frequencies above 1500 Hz, and whether or not the phase-locked neural representation is sufficiently robust at these frequencies to provide useable information. The contributors suggest key experiments that may help to resolve this issue, and experimental findings that may cause them to change their minds. This issue is of crucial importance to our understanding of the neural basis of auditory perception in general, and of pitch perception in particular.
Bibliographical noteFunding Information:
BCJM was supported by the Engineering and Physical Sciences Research Council , grant number RG78536 . AJO was supported by the National Institutes of Health (Grant R01 DC005216 ). MGH was supported by the National Institutes of Health (Grant R01 DC009838 ). SS was supported by National Institutes of Health grants and by an ERC Advanced Grant (Neume) . PXJ and EVE were supported by grants from the Fund for Scientific Research – Flanders and Research Fund KU Leuven . CJP was supported by the Biotechnology and Biological Sciences Research Council , grant number BB/M007423/1 , and by the National Institute for Health Research Manchester Biomedical Research Centre . We thank the Editor and two anonymous reviewers for constructive comments on an earlier version of this manuscript.
© 2019 The Authors
- Phase locking
- Place coding
- Temporal coding
- Temporal fine structure