PREDICTION OF UNCOMFORTABLE LOUDNESS LEVELS IN NORMAL HEARING ADULTS FROM THE AUDITORY STEADY STATE RESPONSES Barajas de Prat, J.J. (1), Zenker Castro,

Slides:

Advertisements

Similar presentations

Welcome to Who Wants to be a Millionaire

Advertisements

$1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 Welcome.

Name: Date: Read temperatures on a thermometer Independent / Some adult support / A lot of adult support

$1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 Welcome.

Considerations for the Development and Fitting of Hearing-Aids for Auditory-Visual Communication Ken W. Grant and Brian E. Walden Walter Reed Army Medical.

Musical Sounds Physical Science101 Chapter twenty Amanda Hyer.

Chapter 22B: Acoustics A PowerPoint Presentation by

Learning Introductory Signal Processing Using Multimedia 1 Outline Overview of Information and Communications Some signal processing concepts Tools available.

Characteristics of Congenital Hearing Loss Barbara S. Herrmann, Ph.D. CCC-A Audiology Department Massachusetts Eye and Ear Infirmary Harvard Medical School.

In-situ AEP amplification and wireless recording of Auditory Evoked Potentials and Otoacoustic Emissions Yuri Sokolov, PhD Vivosonic Inc., Toronto, ON.

T HE S OUNDS OF L IFE C ENTER AT U MASS M EMORIAL Current Technique in the Audiologic Evaluation of Infants Todd B. Sauter, M.A., CCC-A Director of Audiology-

C. Elberling Oticon Eriksholm Denmark Efficient stimuli for frequency specific ASSR E. Stürzebecher & M. Cebulla Johann Wolfgang Goethe-Univ. Frankfurt.

Chp 13 Sound and Music.

Legal Vice Presidency The World Bank Enforcement of Secured Rights SURVEY Commercial Enforcement and Insolvency Systems Legal Vice Presidency The World.

Jeopardy General Compare & Order AdditionSubtraction Vocabulary Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy.

Chapter 5 Algebra Jeopardy

Welcome to Who Wants to be a Millionaire

School Shop. Welcome to my shop. You have 10p How much change will you get? 7p 3p change.

Who Wants To Be A Millionaire?

Who Wants To Be A Millionaire? Mrs Mances Edition.

Who Wants To Be A Millionaire? Decimal Edition Question 1.

Welcome to Who Wants to be a Millionaire

£1 Million £500,000 £250,000 £125,000 £64,000 £32,000 £16,000 £8,000 £4,000 £2,000 £1,000 £500 £300 £200 £100 Welcome.

Welcome to Who Wants to be a Millionaire

CASE 1/2 SURGEON: Franco Trabalzini

How loud is allowed? Its déjà vu all over again! Ruth Bentler, Ph.D. Dept of Speech Pathology & Audiology The University of Iowa

SITE OF LESION TESTING:

Introduction to Electronic Circuit Design

EFFECTS OF AGE AND HEARING LOSS ON RECOGNITION OF TIME-COMPRESSED SPEECH J.J. Barajas (1,2,3), F. Zenker (1,3), A.B. Carballo González (3) and R. Fernández.

Client Training Module optical and acoustic alarms.

Occupational Audiometric Testing Part 2: Interpretation and Referral

AUDIOMETRIC TESTING RESULTS, FOLLOW-UP and REFERRAL PROTOCOLS

Mental Math Math Team Skills Test 20-Question Sample.

Audio Cables and Connectors. Common Audio Cables Balanced: Have two conductors and a shield or ground. Used for low impedance - balanced circuits (+4.

Audiometry Dr. Vishal Sharma.

Frequency representation The ability to use the spectrum or the fine structure of sound to detect, discriminate, or identify sound.

Perception Chapter 11: Hearing and Listening

Pressure = force area = 12 N 25 cm 2 = 0.48 N/cm 2.

$1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 Welcome.

1 Sensation and Perception zIn this part of the course we will try to answer such questions as: yHow do we see and hear? yWhy does a TV only need three.

$200 $500 $1000 $2000 $100 $200 $500 $1000 $2000 $100 $200 $500 $1000 $2000 $100 $200 $500 $1000 $2000 $100 $200 $500 $1000 $2000 $100 Scientific Notation.

Before Between After.

Benjamin Banneker Charter Academy of Technology Making AYP Benjamin Banneker Charter Academy of Technology Making AYP.

Foundation Stage Results CLL (6 or above) 79% 73.5%79.4%86.5% M (6 or above) 91%99%97%99% PSE (6 or above) 96%84%100%91.2%97.3% CLL.

Figures for Chapter 9 Prescription

Fractions Simplify: 36/48 = 36/48 = ¾ 125/225 = 125/225 = 25/45 = 5/9

Early vs. Late Onset Hearing Loss: How Children Differ from Adults Andrea Pittman, PhD Arizona State University.

Partial Products. Category 1 1 x 3-digit problems.

Sound and auditory mechanics. impact loud speaker upon particle distribution in the air.

Acousteen, Herman Steeneken 1 Past, Present and Future of STI Herman J. M. Steeneken (

Audiograms What are they? Why have them? How do I read them?

José Juan Barajas de Prat Clinica Barajas, Universidad de La Laguna, Fundación Dr. Barajas SANTA CRUZ DE TENERIFE - CANARY ISLANDS - SPAIN Universidad.

AUDITORY BRAINSTEM EVOKED RESPONSE (ABR)

AUDITORY BRAINSTEM RESPONSE (ABR) DR.S.H.HASHEMI 1.

José Juan Barajas de Prat

PHYSICS OF SOUND PHYSICS OF SOUND HEARING CONSERVATION PROGRAM 1 28 Jan 2013.

IAPA Summer School 2008 Neonatal Hearing Screening and Auditory Neuropathy Berlin, Germany April 10th and 11th UPDATING THE ELECTROPHYSIOLOGY IN NEONATAL.

Limitation of Click-Evoked ABR: Lack of Frequency-Specificity

Universidad de La Laguna EVALUATION OF THE BENEFITS OF FM SYSTEMS IN COCHLEAR IMPLANTS AND HEARING AID USERS Barajas, J.J. (3), Mora, R. (2), Fernández,

Measuring the brain’s response to temporally modulated sound stimuli Chloe Rose Institute of Digital Healthcare, WMG, University of Warwick, INTRODUCTION.

Need for cortical evoked potentials Assessment and determination of amplification benefit in actual hearing aid users is an issue that continues to be.

I can’t believe my ears !. Subjective Loudness Pitch Tone quality Objective Amplitude Frequency Spectrum.

Test procedure Several different methods followed. Several different methods followed. Most standard: Recommended by Carhart and Jerger (1959) and ASHA.

Date of download: 6/22/2016 Copyright © 2016 American Medical Association. All rights reserved. From: The Clinical Value of the Multiple-Frequency 80-Hz.

Copyright © American Speech-Language-Hearing Association

Copyright © American Speech-Language-Hearing Association

Speech Perception CS4706.

HEARING ASSESSMENT: PURE TONE AUDIOMETRY

Presentation transcript:

PREDICTION OF UNCOMFORTABLE LOUDNESS LEVELS IN NORMAL HEARING ADULTS FROM THE AUDITORY STEADY STATE RESPONSES Barajas de Prat, J.J. (1), Zenker Castro, F. (2), Mora Espino, R. (3) and Fernández Belda, R. (2) (1)Universidad de La Laguna (2) Clínica Barajas (3) Fundación Canaria Dr. Barajas para la Prevención e Investigación de la Sordera SANTA CRUZ DE TENERIFE - CANARY ISLANDS - SPAIN Universidad de La Laguna XXIX International Congress of Audiology, Hong Kong, June , 2008

Uncomfortable Loudness Levels Uncomfortable Loudness Level Amplified Speech Spectrum Threshold

ULL Measurement

ULL Objective estimation Kiessling, Audiology, 1980 Thornton, Scand Audiol, 1989 Acoustic Reflex Auditory Brainstem Response

ASSRs Recording Procedure Amplifier: Low Cut (A): 20 Hz High Cut (B): 300 Hz Gain: Notch: On Electrode Arrangement: Non-inverted: Cz Inverted:1M Ground: forehead Impedance < 5k 500 Hz 3 kHz Acoustic Stimuli: AM Tones.5 & 3 kHz dB re ULL from -10 to -60

ULLs Measurement Procedure 500 Hz 3 kHz Acoustical Spectrum Electrical Waveform 500 Hz 3 kHz

Mean Threshold (dB HL) SD (dB) Frequency (Hz) Male Subjects Female Subjects Male Subjects Female Subjects Characteristic of the study group Means and SDs audiometric thresholds (N=14)

ULL = 90 dB HL ULL 500 Hz Right ear Left ear ASSR Recordings

Subjective ULL (dB HL)

3 kHz Amplitud-Intensity function (n = 14)

500 Hz Amplitud-Intensity function (n = 14)

Inter subject average amplitude- intensity function (n = 14)

Objective ULLs predicted from the intensity-amplitude function

Conclusions High intersubject variabilty in the amplitude-intensity function was found. Higher correlations was found for the 3 kHz carrier frequency. In general a stepper amplitude - intensity function were found for the left ear than for the rigth ear. ULL prediction based solely on individual ASSR amplitude-intensity function proved to be problematic.

WELCOME! EFAS 2009 TENERIFESPAIN