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T V Chernigovskaia

Publications and source records attributed to T V Chernigovskaia.

At least 19 recordsLinked to original sources

[Mirror brain systems, concepts and language: the price for anthropogenesis].

The paper discusses the problem of cognitive evolution and the basis for the origin of language and mind, genetic history of Homo sapiens and whether the basic concepts are inborn or effected by experience, sensory or cognitive per se. The problem of localization of higher functions and Theory of Mind in norm and pathology is analyzed.

Biological Evolution↗

[Effect of acoustic stimulation parameters on human appreciation of changes in distance from a sound source].

Minimal time necessary for appearance of sensation of approaching or withdrawing of the amplitude-impulse-modulated sound was 0.3--0.4 sec at changing the intensity from minimal to maximal within the range of 30--60 dB over the threshold of rhythmic series determination (10--50 Hz). The number of short lengths of tones or noises in the series within this time epoch should be not less than three. The effect of the value of carrying frequency of the series lengths upon the sensation of approaching or withdrawing is only evident within the range of those temporal parameters of the signal which accompanied change of criterion of estimation of the sound quality. Further shortening of the signal leads to substitution of the criterion for estimation of stimulus position for the criterion of sound accentuation at a tonal carrier and for the criterion of consonant-likeness at a noise carrier. The downward frequency modulation from the initial frequency at a growing amplitude enhances the sensation of "approaching", the upward modulation enhances the sensation of source "withdrawing", as compared with the constant frequency or the frequency modulation of opposite sign.

Adult↗

[Selective sensitivity of hearing to amplitude modulation of speech in man].

Studies on the sensitivity of man's hearing to the reception of amplitude modulation (AM) of the sound reveal statistically reliable threshold minimum in the region of 4-6 c. p. s. It is suggested that this phenomenon is evolutionary conditioned by tuning of human auditory system on the perception of speech, in which AM results from articulation of the syllables. The acoustical analysis of several speech extracts demonstrated statistically reliable maximum of AM of the sound flow just within 4-6 c. p. s. Therefore, the selective sensitivity of hearing to perception of these AM frequencies increases the safety and interference resistance of the system "speech-hearing".

Acoustic Stimulation↗