"Development of a fast method for measuring sensitivity to temporal fine structure information at low frequencies," Int.
The task is similar to the earlier TFS-LF test described in The envelopes of the tones are synchronous across the two ears, so the task can only be performed if the listener is sensitive to IPD. The task involves discrimination of the lateral position of sinusoidal tone bursts based on an interaural phase difference (IPD). "Development of a method for determining binaural sensitivity to temporal fine structure," Int.
Auditory nerve psychology software#
The software that you can download from this website implements the TFS-AF test described inįüllgrabe, C., Harland, A. The role of temporal fine structure processing in pitch perception, masking, and speech perception for normal-hearing and hearing-impaired people. J Assoc Res Otolaryngol, DOI: 10.1007/s1016-x. Recent evidence suggests that people with cochlear hearing loss, and older people with or without hearing loss, have a reduced ability to process information carried in the TFS, and this contributes to their difficulties in understanding speech in the presence of background sounds. Information about the TFS is conveyed in the temporal patterns of firing in the auditory nerve, and it may play an important role in pitch perception, masking, and the perception of speech in background sounds. Each of these signals contains two forms of information fluctuations in the envelope (E, the relatively slow variations in amplitude over time) and fluctuations in the temporal fine structure (TFS, the rapid oscillations with rate close to the center frequency of the band).
Auditory nerve psychology series#
When such sounds are analyzed in the cochlea of a normal ear, the result is a series of bandpass-filtered signals, each corresponding to one position on the basilar membrane.
Most of the sounds that we encounter in everyday life, including speech and music, are broadband their spectra cover a wide range of frequencies. A Test for Determining Binaural Sensitivity to Temporal Fine Structure: The TFS-AF test
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