Download e-book for iPad: Basic Mechanisms in Hearing by Aage R. Moller, Aage Moller


By Aage R. Moller, Aage Moller

ISBN-10: 0125042507

ISBN-13: 9780125042505

Uncomplicated Mechanisms in listening to is a set of papers that discusses the functionality of the auditory approach overlaying its ultrastructure, body structure, and the mechanism's reference to experimental psychology. Papers assessment the mechanics, morphology, and body structure of the cochlear, together with the body structure of person hair cells and their synapses. One paper examines the mixed physiological and anatomical reports of stimulus coding within the mammalian auditory frightened method. the result of those stories pertain to the latency, frequency selectivity, and time development of responses to brief tone bursts. different learn evaluate the cochlear nerve, behavioral, and psychophysical frequency selectivity which express that frequency selectivity of the auditory approach happens on the point of the cochlear nerve, turning into downgraded in end-organ deafness. different papers speak about neural coding at greater degrees reminiscent of the characteristic extraction within the auditory method of bats. a few papers additionally examine the really good listening to mechanisms in animals, for instance, the echolocation of bats and in a few bugs, the functionality of the swimbladder in fish listening to, in addition to the "invertebrate frequency analyzer" within the locust ear. Physiologists, neurophysiologists, neurobiologists, normal clinical practioners, and EENT experts will locate this assortment worthy.

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The investigations of Kohlloffel (1972) indicate a continuous change in the vibratory properties of the 59 W I L L I A M S. RHODE basilar membrane of the guinea pig after death. The slopes of the amplitude envelope decrease with time and the region of maximum response for a given fre­ quency shifts basally. Moreover, he finds that less pressure is required to reach a given displacement in the region of best response. These changes are com­ patible with those observed here over a shorter time frame.

Soc. Amer. 4 0 , 4-11. H. (1969). Distribution pattern of cochlear harmonics. 3• Acoust. Soc. Amer. 4 5 , 37-46. A. (1956). Summating potentials of the cochlea. Amer. 3. Physiol. 195, 251-261. H. (1966). Model of the nonlinear characteristics of cochlear potentials. 3. Acoust. Soc. Amer. 4 4 , 548-554. Fletcher, H. (1929). Speech and Hearing in Communica­ tion. D. , New York. R. (1969). Time-domain measurement of cochlear nonlinearities using combination of click stimuli. 3 . Acoust. Soc• Amer.

After the onset of eddy flow, however, the distal slope of the envelope be­ comes progressively steeper and the maximum sharper (Fig. 1 8 ) . This latter observation may represent a link between the two types of nonlinear cochlear pro­ cesses described in the present paper. It is recalled that the degree of asymmetrical responses varied also with the sharpness of the envelope maximum. When beating signals are raised to levels beyond the onset of eddy motion, the eddy flow is no longer con­ tinuous, but speeds up and slows down in synchrony with the beat rate.

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Basic Mechanisms in Hearing by Aage R. Moller, Aage Moller

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