The Newsletter of the International Society of AudiologyAUDINEWS

WWW.ISA-Audiology.Org Vol 4:Number 2:2004

Inside this issue:

INTERNATIONAL CONGRESS OF AUDIOLOGY 2004ISA-AMPLIFON STUDENT SCHOLARSHIPS AWARDED!

Sharon Fujikawa, Ph.D. President, International Society of Audiology

It is with great pleasure that I take this opportunity to congratulate all studentswho entered the competition for the first ISA Student Scholarship that wassponsored by Amplifon. Students submitted abstracts and descriptions ofresearch they are conducting and letters of recommendation were written by their sponsoringadvisor. The submissions were judged by the Scientific Committee of ISA: Stig Arlinger, Chair, DaiStephans, Hans Verschuure, Theodore Glattke, Jean Marie Aran, and Sharon Fujikawa.

The Committee was pleased at the quality of the applications and breadth of areas of research. Itwas a difficult choice for us to choose from amongst so many strong applications! Three studentswere selected to receive registration to the XXVII International Congress of Audiology that will beheld in Phoenix, Arizona, USA, September 26 – 30. Housing during the Congress was offered aswell. All three scholars are able to attend so I am hoping that Congress attendees will recognizethem and greet them as they embark on their careers as audiologists and hearing scientists. Thepapers will be presented as posters or in oral format. The three winners are: Ms Sharon Cameron, astudent of Dr Harvey Dillon at the National Acoustics Laboratory, New South Wales, Australia;Mr Shinji Hamanishi, a student of Dr Hiroshi Wada at the Department of Bioengineering andRobotics, Tohoku University, Japan; and Ms Lyubov Nemanov, a student of Dr Glen K. Martin at theUniversity of Colorado Health Sciences Center, USA.

The abstracts of their work may be found on Pages 7-8 of this Audinews. Please join me incongratulating these student scholars and their advisors for their excellent work, wonderfulsubmisstions, and being the winners of our first International Congress of Audiology ISA-AmplifonStudent Scholarships!

The International Society of Audiology would like to thank Amplifon for their generous support ofthese awards. We look forward to future collaborative efforts with Amplifon as we try to support theongoing research of our students and members.

“I am delighted to hear that I was chosen for one ofthe three ISA-Amplifon Student Scholarships at theXXVII International Congress of Audiology.I will do my best to live up to your expectations...”Shinji Hamanishi, Japan

“I would like to thank the committee for this honor...”Sharon Cameron, Australia

“It is a great honor and pleasure to be a part of theXXVII International Congress of Audiology andpresent my work there...”Lyubov Nemanov, USA

Amplifon-ISA Scholarship Awardees Announced XXVII International Congress of Audiology All Work and No Play? No Way! Call for Papers Report of WHO — South East Asian Regional Inter-country Meeting Aram Glorig Award for Lifetime Achievement Who Was Aram Glorig? Recalling Gunnar Liden Call For Historical Information Round Table Program At Phoenix Congress Abstract: Lyubov Nemanov Abstract: Shinji Hamanishi Abstract: Sharon Cameron

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Phoenix Congress: All Work and No Play? No way!!

Visitors to Phoenix and Arizona will find natural beauty that begins withrugged mountain ranges, Saguaro cacti that tower over hiking trails, andbreathtaking sunsets. The hotels reserved for Congress delegates and theirguests are located in the heart of the city but only few minutes from PhoenixSky Harbor Airport by taxi. Once delegateshave checked in, they’ll find that they are ashort walk from the Civic Plaza ConventionCenter and major attractions such as theSymphony Hall, Major League Baseball(Arizona Diamondbacks), museums, shops and

a selection of restaurants serving regional cuisine.

On Monday, guests will have the opportunity to travel to Sedona tosee spectacular red rock formations and ancient cliff dwellingsbefore browsing in fascinating shops and enjoying alfresco dining. Guests also will visit the world-famous Heard Museum and will have the chance to learn more about desert flora as they tour thePhoenix Botanical Gardens on Tuesday. On Wednesday they’ll be escorted to Scottsdale’s trendyshops.

Visitors who want to extend their trips beyond the Congress dates will findmuch to see and do. With over 200 golf courses and hundreds of resortsand spas within a short drive of downtown, a restful vacation will be easyto arrange. The Grand Canyon will not be very crowded in lateSeptember but the weather will be perfect for an overnight visit. LasVegas is a short drive or even shorter flight to the West. Tucson andMexico will beckon visitors to the South.

After exploring Arizona by day, spend a cool night strolling under starsyou can actually see!

CALL FOR PAPERS

THE XXVII INTERNATIONAL CONGRESS OF AUDIOLOGYPHOENIX, ARIZONA, USA - 26-30 SEPTEMBER 2004

INVITES YOU TO SUBMIT ABSTRACTS FOR THE FREE PAPER SESSIONSABSTRACTS MAY BE SUBMITTED ON ANY TOPIC RELATED TO AUDIOLOGY AND HEARING SCIENCE

FOR FURTHER INFORMATION VISIT THE CONGRESS WEBSITE:WWW.DAWSONGROUP.NET/ISA

ORLINK DIRECTLY FROM THE ISA WEBPAGE:

WWW.ISA-AUDIOLOGY.ORG

REGISTRATION, ABSTRACTS, HOTEL RESERVATIONS: OPEN NOW

DEADLINE FOR ABSTRACTS: JULY 1, 2004

COME FOR THE SCIENCE- ENJOY THE SALSA–STAY FOR THE SCENERY

Page 3 AUDINEWSReport Of An Inter-country Meeting Called By The World Health

Organization — South East Asian Regional Office

William Noble, Ph.D.President-Elect, International Society of Audiology

The meeting was organized so as to establish a framework for regionalcooperation in progressing strategies for prevention of hearing impairmentand, in the case of existing hearing impairment, reduction of its disablingeffects. The countries constituting the South East Asian Region (SEAR), interms of WHO arrangements, are: Bangladesh, Bhutan, Burma, East Timor,

India, Indonesia, Nepal, North Korea, Sri Lanka, Maldives and Thailand. Representatives fromseveral of those countries, relevant NGOs and other organizations, including the InternationalSociety of Audiology, met in Bangkok, Thailand on November 27-28, 2003.

Presentations were made about the incidence and severity of hearing impairment in the region andthe world. Representatives of the various organizations present spoke about the role and activity oftheir agency in relation to the proposed project. I reported on the “best practice” guidelines beingdeveloped by ISA, and on the humanitarian audiology (HA) initiative. Delegates were positive intheir response to the potential for the rehabilitation and curriculum guidelines to become a meansto articulate arguments for improved support for currently poorly-provisioned services. The HAinitiative was also warmly recognized as a positive step.

It was firmly agreed that the time for data-gathering was in the past, and that action was now urgentlyrequired within the region to address the substantial problem of hearing impairment, much of which,especially among young children, is entirely preventable. Thus, impacted ear wax and otitis mediaand its consequences account for more than 24% of hearing loss cases in India. The most recent WHOestimate is that 250 million people globally have disabling hearing loss, two-thirds of them indeveloping countries. It ranks 15th in the list of top 20 causes of Global “Burden of Disease”, whereBurden is assessed in Disability-Adjusted Life Years (years of healthy life lost due to prematuremortality plus years lived with disability). It ranks 11th in the South East Asian Region.

The priorities for cooperative action agreed at the meeting were to make prevention and treatmentamong children the highest, followed by adults (including workers exposed to injurious noise),followed by older people. The Conference Chair — Dr Madan P. Upadhyay — WHO-SEAR Adviser onDisability, Injury Prevention and Rehabilitation — sought material and organizational support. ASteering Committee will be formed to move this agenda forward. This group, representing relevantprofessional expertise, governments and NGOs includes a representative nominated by ISA. ISA iscanvassing relevant members and will shortly be announcing its nominee.

Some of the representatives who attended the Bangkokmeeting. From left to right, Sister Merly TomKizhakhayil, Christofell-Blindenmission, Meghalaya,India; Dr Saw Aung Hla Win, Consultant ENT, Burma; ProfSuchitra Prasansuk, Director, Otological Centre, SirirajHospital, Bangkok; Dr Navnith Shah, CommonwealthSociety for the Deaf, London; Dr J. J. Grote, IFAS; ProfWilliam Noble, ISA; Prof Hendarto Hernandin, WHOCollaborating Centre, Jakarta.

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The Aram Glorig Award Prestigious Recognition For Lifetime Achievement

by Sanford E. Gerber, Ph.D.At its biennial World Congress, the International Society of Audiology presents the Aram Glorig awardto recognize a person who has had a “distinguished career in Audiology.” The Glorig Foundationwas established at the International Congress of Audiology (ICA) in Helsinki in 1982. It was the idea ofISA’s late president Ole Bentzen (Denmark) to do something to honor Dr Glorig’s many, many years ofservice to the Society and the profession. Dr Glorig was one of our founders. Dr. Bentzen gathered agroup of people whom he knew to be Dr Glorig’s friends and colleagues, and it was then decided thathe would best be honored if an important and prestigious award was given in his name. The originalorganizing group included Don Henderson (U.S.), Frank Martinson (Nigeria), Gunnar Lidén (Sweden),and Sanford Gerber (U.S.).

The first Glorig Award was presented to Marion Downs at the Santa BarbaraCongress (U.S. - 1984). Since then, it has been awarded at every succeedingmeeting to a deserving colleague. The list of awardees and the location ofthe Congress at which they were presented the Glorig Award includes: J.Sekula, Prague, Czechoslovakia, 1986; Moe Bergman, Jerusalem, Israel, 1988;G. Liden, Tenerife, Spain, 1990; Ronald Hinchcliffe, Morioka, Japan, 1992; W.Niemeyer, Halifax, Canada, 1994; A. Antonelli, Bari, Italy, 1996; Lilly Tell,Buenos Aires, Argentina, 1998; Jean-Marie Aran, Hague, Netherlands, 2000;and Graeme Clark, Melbourne, Australia, 2002. Sanford Gerber

The selection of the recipient is made by the Scientific Committee of ISA (Stig Arlinger, SharonFujikawa, Hans Verschuure, Ted Glattke, Jean Marie Aran) and Sanford Gerber who remains on theselection committee because of his role as the original Secretary-General of the Glorig Awardprogram. The Aram Glorig Award is always presented at the business meeting of the InternationalSociety of Audiology during the International Congress of Audiology. The award is almost always asurprise to the recipient and always a surprise to the assembled membership. It is important,therefore, that all members be sure to attend the business meeting at this year’s congress in Phoenix.Who knows who the winner will be. We are sure you will want to be there to share the excitementand to congratulate this year’s winner of the Aram Glorig Award.

WHO WAS ARAM GLORIG?

This tribute is based on an article by H. House: Oct, 1998, Otolaryngology - Head and Neck Surgery.Born in Manchester, England (1906), Dr. Glorig received his MD and began aresidency in Pediatrics in NY in 1938. Exposure to hearing problems in childrenduring his pediatrician days led to a residency in ENT. Glorig joined the U.S. Armyin WWII and was sent to London where he encountered soldiers with tinnitus andhearing loss. This led him to study clinical audiology, and eventually led to a callfrom the U.S. Surgeon General to go to Walter Reed Hospital to develop a programfor hearing care. As Major-General Aram Glorig, he became Director of theAudiology and Speech Correction Center of the Veterans Administration. He leftthat position in 1952 when he joined the AAOO Subcommitee on Noise of the

Conservation of Hearing Committee of AAOO to do full time research of noise in industry. He alsohelped develop equipment and calibration standards as Chairman of both the American StandardsAssociation and the International Standards Organization. In 1964 Glorig moved to Dallas, where heestablished the Callier Center for Communicative Disorders, one of the premier centres for Audiologyin the world. continued on page 5

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Who Was Aram Glorig??.......Continued from Page 4Glorig is considered one of the Founders of the International Society of Audiology. In 1966, hebecame President of our society, an office he held for 6 years (1966-72). In fact, he holds therecord as the longest serving President in the history of our society. During his tenure asPresident of ISA, he was also President of the Xth International Congress of Audiology (Dallas).

In 1972, Dr Glorig was one of the key speakers at the Nova Scotia Conference on Early Identifica-tion of Hearing Loss, one of the first formal conferences dedicated to establishing a universalnewborn screening program. The American Auditory Society was founded in 1974 through thedirect efforts of Aram Glorig. He also helped found the Association for Research in Otolaryngol-ogy which provides residents in that field an opportunity to present their work. At age 70, in1975, Aram Glorig stepped down as head of Callier and became the first “Forensic Otologist” inthe United States. As such, he testified in cases involving injury to the ear while at work andserved as a consultant to a variety of corporations as they focused on noise in the workplace.

Dr Glorig died in 1998 at the age of 92. His contributions to the fields of Audiology, Otology andHearing Science are known, and continue to form the basis for many of the “new” developmentsof today. His part in the founding of ISA and AAS is significant. He was a man of many talents.He was a man we all felt priviledged to know. He was a man we honor by naming our mostprestigious award the Aram Glorig Award.

Gunnar Liden, President of the International Society of Audiology (1980-1982) passedaway in December 2003. Dr Liden, also a Founder of Hearing International, and oneof the key forces behind international ear care, was also a noted scholar andclinician. He earned his Ph.D. from the Karolinska Institute in Sweden and held manyimportant positions in that country. Dr Liden was known for his clinical research inaudiology. He was one of the first to present speech testing in his country and one ofthe first to recognize the importance of impedance as a clinical tool. He retired asProfessor of Audiology at the University of Gotenburg.

I had the pleasure of sharing a suite with him during a meeting in Thailand. Gunnarwas charming, athletic, bright and absolutely loved the sun. I recall him sitting forhours in a rather garish bathing suit before meetings and for hours afterwards just sohe could absorb what little rays were still available to us. He was a man of manytalents who was driven by ideas, passion to meet his goals, and a desire toaccomplish what needed to be done. ISA benefited greatly from his presence andwill be diminished by his passing. (G Mencher, Editor)

Attention Members: We are trying to gather historical information about the International Society of Audiology. If you have copies

of the logos used at ISA Congresses, program information from important meetings and sessions, and/or can contribute to our general knowledge about the ISA, please contact George Mencher at gtmisa@yahoo.com Anything you send us will be returned.

Recalling Gunnar Liden

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XXVIIth International Congress of Audiology: Round Tables

Roundtable presenters will lead off each day with exciting coverage of contemporary issues.

Monday 27 September – Molecular Biology Techniques – Josef Miller, ModeratorL. Ryback: Prevention Of Drug Induced Hearing LossR. Altschuler: Noise Induced Hearing Loss: Mechanisms And PreventionJ. Miller: Tissue Engineering – Rebuilding The 8th Cranial NerveY. Raphael: Gene Therapy And Hair Cell Regeneration

Tuesday 28 September – Audiology and Cognition – Kathy Pichora Fuller, ModeratorM. Daneman: Listening and Comprehending: An Individual Differences PerspectiveB. Schneider: Auditory Cognitive Interactions and AgingJ. Ronnberg: The Role of Working Memory Capacity in Auditory, Audiovisual and Visual Speech

UnderstandingS. Gatehouse: Benefits from Linear and Nonlinear Hearing Aids in Relation to the Interaction

between the User’s Cognitive Capacities and Listening Conditions

Wednesday 29 September – Pediatric Audiology – Deborah Hayes, ModeratorS. Arlinger: Historical Overview and Current Perspective on Electrophysiologic Measures in the

Evaluation of Infants and Young ChildrenA. Sharma: Clinical Techniques for Assessing Brain Development and Plasticity in Hearing

Impaired and Cochlear-Implanted ChildrenD. Houston: Behavioral Assessment of Speech Perception in Deaf Infants Following Cochlear

Implantation

Thursday 30 September - Special Session On International Issues - George Mencher, ModeratorH. Verschuure/S. Arlinger: A Model Curriculum For Training Audiological Personnel In The

Developing WorldS. DeVoe/I Russo/G. Tavartkiladze: A Code Of Professional Conduct - Professional Ethics In The

Developing WorldS. Gatehouse/W. Noble: Standards of Practice or Best Practice

To Tickle Your Interest:Here is a quote from Dr. TedGlattke, Congress President,who said, half in jest and half inseriousness: “I think all of theRound Tables are excellent, andthat the molecular biology willblow people out of the room.The recent findings aboutprotection of ears fromaminoglycocide antibiotics andnoise exposure are stunning andimmediately applicable. Drinkorange juice, take a littleaspirin, join a rock band andhear forever!”

For Your Information:All the ISA Congress hotelsand the convention center arein compliance with theAmericans with Disabilities Actand all other laws with respectto facilities for those withspecial requirements. Theconvention center is accessibleby ramp or elevator. Allactivities are on one level.Special needs should be notedwhen making hotel reserva-tions.

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Mr Shinji HamanishiAdvisor: Dr Hiroshi WadaDepartment of Bioengineering and Robotics, Tohoku University, Sendai, Japan

Development of a non-Implantable electromagnetic hearing aid

Research and development over the past two decades has shown that implantable hearing aids cancircumvent some of the drawbacks inherent in conventional hearing aids, such as feedback,cosmetic problems and so on. However, these hearing aids have not as yet been widely used,because their implantation requires invasive surgery and their application in children, who are stillgrowing, is difficult.

In this study, a prototype of a non-implantable electromagnetic hearing aid, which can generate ahigh-excitation force to vibrate the ossicles via the tympanic membrane, was constructed. Todetermine its fundamental properties, excitation force and acoustical gain were evaluated usinghuman temporal bones. The experiments showed that the hearing aid was able to generate themaximum gain of 35 dB and can be used to treat patients with a hearing loss between 40 and 70 dBHL in the frequency range of 0.5 - 5.0 kHz.

Ms Lyubov NemanovAdvisor: Dr Glen K. MartinDepartment of Otolaryngology, University of Colorado Health Sciences Center,Denver, USA

Amplitude growth of lower- and upper- sidebands DPOAEsmeasured at three f2/f1 ratios in normal and noise-exposed rabbits

Because of the nonlinear aspects of cochlear transduction, presentation of two tones to the earproduces families of distortion-product otoacoustic emissions (DPOAEs) referred to as lower sideband(LSB) and upper sideband (USB) DPOAEs. Most DPOAE literature has focused on the parametersnecessary to elicit the largest and most prominent LSB DPOAE at the 2f1-f2 frequency. By ignoringDPOAEs other than the 2f1-f2 emission, a considerable amount of information regarding cochlearnonlinearity is discarded. As more energy is applied to the nonlinearity, or as f2/f1 ratios aredecreased, more sideband DPOAEs are produced. By studying multiple DPOAEs simultaneouslyinsight into changes in the cochlear nonlinearity, such as a shift in the operating point or changes inthe I/O map, may be detected that cannot be revealed by examining a single DPOAE. The purposeof the present study was to investigate LSBs (2f1-f2, 3f1-2f2, 4f1-3f2, and f2-f1) and USBs (2f2-f1, 3f2-2f1, 4f2-3f1) in normal and noise-damaged rabbit ears as a function of f2/f1 1ratio (1.05, 1.25 and 1.4.) atdifferent f2 frequencies (2, 4, 8, and 11.3 kHz) over a range of primary-tone levels (75 to 45 dB SPL).Each of four rabbits was exposed to a monaural, 2 kHz, 110 dB SPL octave band noise (OBN) in theright ear only and data was collected before and after noise exposure in both ears. Experimentalfindings revealed that in noise exposed ears USBs and LSBs behaved differently. While all LSBsreflected the DPOAE loss pattern of the 2f1-f2 LSB DPOAE, USBs showed either no change orenhancement. When the primaries were closer together (f2/f1 = 1.05) both USBs and LSBs behavedsimilarly and failed mirror the 2f1-f2 DPOAE loss pattern. For some frequencies at the higher f2/f1 ratio(1.4) USB DPOAEs could not be detected in normal ears.

Abstracts of the ISA-Amplifon Congress Scholarship Awards

Continued on Page 8

Dr. J. (Hans) Verschuure, Ph.D.Secretary GeneralAudiological Center, ENT DepartmentErasmus University Medical CenterRotterdam-DijkzigtDr. Molewaterplein 40, NL-3015 GDRotterdam, NetherlandsPhone: 31 10 463 9222 Pager 4586Fax: 31 10 463 4240E-mail: SG@ISA-AUDIOLOGY.ORGOr: verschuure@erasmusmc.nl

AudiNews—ISA NewsletterGeorge T. Mencher, Ph.D., EditorSchool of Human Communication DisordersDalhousie University5599 Fenwick StreetHalifax, Nova Scotia, Canada B3H 1R2Phone: 1 902 477 5360Fax: 1 902 494 5151E-mail: GTMISA@YAHOO.COM

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Ms Sharon CameronAdvisor: Dr Harvey DillonNational Acoustics Laboratory, New South Wales, Australia

Development and evaluation of a test of virtual spatial hearing

The ability to detect the source of a sound is essential for both safety andcommunication. Previous research suggested adults and children withauditory pathologies, such as auditory processing disorder (APD), havepoorer than normal localization ability. The purpose of the present study is to develop a Test ofVirtual Spatial Hearing (TVSH), which can be easily administered in a clinic, using standardaudiometric equipment and a PC. Monaural speech signals were convolved with binauralhead related transfer functions (HRTFs), recorded from the left and right ears of a KEMAR, in ananechoic chamber. The convolution produces a three-dimensional auditory environment where thespeech stimuli, delivered via headphones, appear to be emanating from various positions in spacearound the listener. The listener is required to discriminate between target continuous discoursepresented at 0° azimuth and elevation (directly in front of the listener) and looped distractersentences presented either directly in front (mixed task) or at 90° angles (separate task).

It was found that normally hearing adults had a significantly lower (more favorable) threshold in dBHL in the separate task, relative to the mixed task, due to their ability to use binaural cues todistinguish the speech from the background noise when it was separated in location by 90°. Thedegree of this “separation effect” was dependent on the similarity of the vocal quality of thespeaker/s of the distracter sentences to the vocal quality of the speaker of the target discourse.\When the target discourse and distracter sentences were both recorded by the same femalespeaker (F1 vs. F1/F1 condition), the separation effect was significantly greater than when thedistracter sentences were recorded by different female speakers (F1 vs. F2/F3 condition). Theseparation effect for both these conditions was also significantly greater than when the distractersentences were recorded by a male speaker (F1 vs. M1/M1 condition). This result supports previousresearch which has shown that attention to spatial cues is heightened when components of theauditory array are confusable on other acoustic grounds. In a test-retest reliability study on the (F1vs. F1/F1) and (F1 vs. F2/F3) conditions of the TVSH, no practice effects were found for either task.

Studies are currently in progress to gather normative data on the TVSH from normally hearingchildren aged 7.0 – 7.11 and 9.0 – 9.11 years of age, which will then be compared to childrenidentified with APD using a traditional diagnostic test battery . It is hypothesized that for listenerswith pathologies such as APD - which is said to affect the auditory mechanisms which mediatelocalization ability - there will be no significant difference between scores in dB HL in the mixed aand separate conditions, for either the (F1 vs. F1/F1) or (F1 vs. F2/F3) condition.

Abstracts of the ISA-Amplifon Congress Scholarship Awards ...continued from Page 7

Contacts: International Society of Audiology (www.isa-audiology.org)