Volume 38 #1

Contents

1. Рroblems of diagnostics of dysfunctions of the olfactory analyzer of laboratory animals on the basis of behavioral and electrophysiological methods of research
2. Changes in the visual areas of the cerebral cortex in children with left-sided anisometropic amblyopia according to structural MRI and resting-state fMRI
3. In search of the molecular mechanisms of adaptation memory in rods: basic activity of phosphodiesterase
4. Non-invasive recording of electroretinogram from both compound eyes in the cockroach Periplaneta americana L. in response to light stimuli
5. Individual and typological features of motor memory in problems of control of ergacy systems in the absence of visual feedback
6. Discrimination of rippled spectra with various ripple widths in listeners with normal and impaired hearing

In listeners aged 26 to 82 years with various degrees of hearing loss (from normal to moderate), the frequency resolving power (FRP) was assessed as the resolved ripple density resolution in rippled-spectrum signals at various ripple widths. In normal-hearing listeners, FRP increased with narrowing the ripple width. In impairedhearing listeners, the effect of narrowing the ripple width was minor. The difference between the normal- and impaired-hearing listeners could not be explained by the excitation pattern model of the rippled spectrum resolution. The temporal analysis model did explain this difference on an assumption that in normal hearing listeners, enhancing the autocorrelation of the input signal resulted in prolongation of the delay at which the autocorrelation could be detected by the auditory system, whereas in impaired-hearing listeners this effect was reduced or absent.

Key words: hearing, hearing loss, rippled spectra, spectral resolution, temporal resolution

DOI: 10.31857/S0235009224010066

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