Auditory motion aftereffects with a two‐component adapter

1998 ◽  
Vol 103 (5) ◽  
pp. 2845-2845
Author(s):  
Hisashi Uematsu ◽  
Makio Kashino
Keyword(s):  
Auditory Motion ◽  
Two Component ◽  
Motion Aftereffects

scholarly journals Modulation frequency as a cue for auditory speed perception

2017 ◽  
Vol 284 (1858) ◽  
pp. 20170673 ◽  
Author(s):  
Irene Senna ◽  
Cesare V. Parise ◽  
Marc O. Ernst
Keyword(s):  
Motion Perception ◽  
Moving Objects ◽  
Modulation Frequency ◽  
Temporal Frequency ◽  
Neural Mechanisms ◽  
Auditory Motion ◽  
Motion Vision ◽  
Speed Perception ◽  
Spatio Temporal ◽  
Motion Aftereffects

Unlike vision, the mechanisms underlying auditory motion perception are poorly understood. Here we describe an auditory motion illusion revealing a novel cue to auditory speed perception: the temporal frequency of amplitude modulation (AM-frequency), typical for rattling sounds. Naturally, corrugated objects sliding across each other generate rattling sounds whose AM-frequency tends to directly correlate with speed. We found that AM-frequency modulates auditory speed perception in a highly systematic fashion: moving sounds with higher AM-frequency are perceived as moving faster than sounds with lower AM-frequency. Even more interestingly, sounds with higher AM-frequency also induce stronger motion aftereffects. This reveals the existence of specialized neural mechanisms for auditory motion perception, which are sensitive to AM-frequency. Thus, in spatial hearing, the brain successfully capitalizes on the AM-frequency of rattling sounds to estimate the speed of moving objects. This tightly parallels previous findings in motion vision, where spatio-temporal frequency of moving displays systematically affects both speed perception and the magnitude of the motion aftereffects. Such an analogy with vision suggests that motion detection may rely on canonical computations, with similar neural mechanisms shared across the different modalities.

scholarly journals Auditory motion aftereffects

1979 ◽  
Vol 26 (5) ◽  
pp. 403-408 ◽  
Author(s):  
D. Wesley Grantham ◽  
Frederic L. Wightman
Keyword(s):  
Auditory Motion ◽  
Motion Aftereffects

Auditory motion aftereffects with varying interaural time differences

1997 ◽  
Vol 101 (5) ◽  
pp. 3105-3105
Author(s):  
Hisashi Uematsu ◽  
Makio Kashino ◽  
Tatsuya Hirahara
Keyword(s):  
Auditory Motion ◽  
Interaural Time Differences ◽  
Motion Aftereffects

Auditory motion aftereffects of approaching and withdrawing sound sources

2010 ◽  
Vol 36 (3) ◽  
pp. 290-294 ◽  
Author(s):  
I. G. Andreeva ◽  
E. S. Malinina
Keyword(s):  
Auditory Motion ◽  
Sound Sources ◽  
Motion Aftereffects

How well does natural motion induce auditory motion aftereffects?

1998 ◽  
Vol 104 (3) ◽  
pp. 1798-1798
Author(s):  
Michael F. Neelon ◽  
Rick L. Jenison
Keyword(s):  
Auditory Motion ◽  
Natural Motion ◽  
Motion Aftereffects

Spectroscopic Observations of Visual Double Stars

1965 ◽  
Vol 5 ◽  
pp. 109-111
Author(s):  
Frederick R. West
Keyword(s):  
Radial Velocity ◽  
High Dispersion ◽  
Velocity Difference ◽  
Spectrograph Slit ◽  
Spectroscopic Observations ◽  
Double Stars ◽  
Visual Double Stars ◽  
Relative Orbit ◽  
Two Component ◽  
Star Images

There are certain visual double stars which, when close to a node of their relative orbit, should have enough radial velocity difference (10-20 km/s) that the spectra of the two component stars will appear resolved on high-dispersion spectrograms (5 Å/mm or less) obtainable by use of modern coudé and solar spectrographs on bright stars. Both star images are then recorded simultaneously on the spectrograph slit, so that two stellar components will appear on each spectrogram.

A technique for protecting delicate specimens during processing

1989 ◽  
Vol 47 ◽  
pp. 982-983
Author(s):  
R.J. Mount ◽  
R.V. Harrison
Keyword(s):  
Basilar Membrane ◽  
Low Cost ◽  
Organ Of Corti ◽  
Region Of Interest ◽  
Sensory Epithelium ◽  
Physical Damage ◽  
Air Drying ◽  
Specimen Handling ◽  
Two Component

The sensory end organ of the ear, the organ of Corti, rests on a thin basilar membrane which lies between the bone of the central modiolus and the bony wall of the cochlea. In vivo, the organ of Corti is protected by the bony wall which totally surrounds it. In order to examine the sensory epithelium by scanning electron microscopy it is necessary to dissect away the protective bone and expose the region of interest (Fig. 1). This leaves the fragile organ of Corti susceptible to physical damage during subsequent handling. In our laboratory cochlear specimens, after dissection, are routinely prepared by the O-T- O-T-O technique, critical point dried and then lightly sputter coated with gold. This processing involves considerable specimen handling including several hours on a rotator during which the organ of Corti is at risk of being physically damaged. The following procedure uses low cost, readily available materials to hold the specimen during processing ,preventing physical damage while allowing an unhindered exchange of fluids.Following fixation, the cochlea is dehydrated to 70% ethanol then dissected under ethanol to prevent air drying. The holder is prepared by punching a hole in the flexible snap cap of a Wheaton vial with a paper hole punch. A small amount of two component epoxy putty is well mixed then pushed through the hole in the cap. The putty on the inner cap is formed into a “cup” to hold the specimen (Fig. 2), the putty on the outside is smoothed into a “button” to give good attachment even when the cap is flexed during handling (Fig. 3). The cap is submerged in the 70% ethanol, the bone at the base of the cochlea is seated into the cup and the sides of the cup squeezed with forceps to grip it (Fig.4). Several types of epoxy putty have been tried, most are either soluble in ethanol to some degree or do not set in ethanol. The only putty we find successful is “DUROtm MASTERMENDtm Epoxy Extra Strength Ribbon” (Loctite Corp., Cleveland, Ohio), this is a blue and yellow ribbon which is kneaded to form a green putty, it is available at many hardware stores.

Fifth virial coefficient of a two-component mixture of hard discs

1997 ◽  
Vol 90 (4) ◽  
pp. 679-681
Author(s):  
F. SAIJA ◽  
G. FIUMARA ◽  
P.V. GIAQUINTA
Keyword(s):  
Virial Coefficient ◽  
Component Mixture ◽  
Two Component
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