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Paper Abstract and Keywords
Presentation 2006-09-25 11:45
Estimation using psychometric logistic functions for discriminating and sequentializing temporally separate perceptual events in auditory perception of ultrasonic bone conduction
Shuhei Komatsu, Kenji Furihata (Shinshu Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Bone-conducted vibrations up to 50 kHz (150 kHz or more in the young) can be heard by most people, including some subjects normally regarded as totally deaf at ordinary frequencies both to air-borne and to bone-conducted sound[1]. Therefore, echolocation is also possible by direct listening to the reflected ultrasonic echoes (&#8710;t) in the high audio range, after brain ultrasonic demodulation which, owing to its frequency separation, will not interfere with speech communication. Most interesting is the result for the regime 3 ms < &#8710;t < 30 ms. Here, two individual different events can be discriminated, but their temporal sequence cannot be assigned correctly: a so-called auditory order threshold (AOT)[2].
In this paper, age and heart beating effects on AOTs have been discovered.
Keyword (in Japanese) (See Japanese page) 
(in English) Auditory Order Threshold(AOT) / Ultrasonic bone conduction / Logistic function / Pulse wave / Age effects / Signal detection theory / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 253, MBE2006-47, pp. 33-36, Sept. 2006.
Paper # MBE2006-47 
Date of Issue 2006-09-18 (MBE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee MBE  
Conference Date 2006-09-25 - 2006-09-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Faculty of Textile Sci. & Tech., Shinshu Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MBE 
Conference Code 2006-09-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimation using psychometric logistic functions for discriminating and sequentializing temporally separate perceptual events in auditory perception of ultrasonic bone conduction 
Sub Title (in English)  
Keyword(1) Auditory Order Threshold(AOT)  
Keyword(2) Ultrasonic bone conduction  
Keyword(3) Logistic function  
Keyword(4) Pulse wave  
Keyword(5) Age effects  
Keyword(6) Signal detection theory  
1st Author's Name Shuhei Komatsu  
1st Author's Affiliation Shinshu University (Shinshu Univ.)
2nd Author's Name Kenji Furihata  
2nd Author's Affiliation Shinshu University (Shinshu Univ.)
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Date Time 2006-09-25 11:45:00 
Presentation Time 20 
Registration for MBE 
Paper # IEICE-MBE2006-47 
Volume (vol) IEICE-106 
Number (no) no.253 
Page pp.33-36 
#Pages IEICE-4 
Date of Issue IEICE-MBE-2006-09-18 

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