Tehran University of Medical Sciences
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Nematollah Rouhbakhsh

Contact Information
https://www.tums.ac.ir/faculties/rohbakhn
Tel: +98 21 7753 0636
Fax: +98 21 7753 0636
Address: Dept. of ٍAudiology, Rehabilitation School, Enghelab Ave., Pich-e- shmiran,Tehran, Iran
Academic Rank
Lecturer
School
Rehabilitation
Audiology
About
CV last edited on: 2019/28/08

1.

Ph.D


Audiology , The University of Melbourne, Melbourne , Australia, 6 August 2016
Thesis Title:Investigating the effect of spatial separation on the detection of sounds in competition, by examining electrophysiological responses from the brainstem and auditory cortex
Supervisor: Professor Harvey Dillon ,Doctor Bram Van Dun ,Professor Robert Cowan

Human communication frequently takes place in noisy environments. In these environments, successful understanding of speech is dependent on an individual’s ability to extract and use spatial cues for separating speech from distracting noise. When speech and noise are separated spatially, the speech reception threshold (SRT) is reduced, and this is referred to in the literature as spatial release from masking (SRM). SRM is in most part due to acoustic cues arising from the differences in time and intensity of signals arriving at each of our two ears (i.e. interaural time (ITD) and interaural level (ILD) differences). ITDs and ILDs have in general been investigated through psychoacoustic studies. However, the electrophysiological correlates of these acoustic cues have only been investigated individually. For this reason, a novel experiment was designed to investigate the effect of spatial separation on the detection of target sound in competition with distractor stimuli in a more realistic experimental environment in which both ITD and ILD cues were present.

The primary aim of this thesis was to determine whether it is possible to identify a neural representation of SRM in the electrophysiological responses recorded from either the brainstem or auditory cortex, or both, using experimental stimuli conveying ILD and ITD cues. This research was conducted in two primary studies. The first study investigated whether the frequency-following response (FFR) in response to the fundamental frequency (F0) of a speech sound could be used to demonstrate SRM at different signal-to-noise ratios (SNRs), and what role of attentional mechanisms might play in spatial processing. FFRs were recorded in eighteen normally hearing participants. Participants were presented through headphones with a synthesized steady-state vowel /u/ with an F0 of 110 Hz and a 250 ms duration at 60 dB SPL. This vowel was labelled as the target stimulus. To be able to measure the effects of attention, a deviant stimulus was interspersed randomly throughout the target stimuli. It was presented 5% of the time, at 52 dB SPL. The role of attention in SRM was measured in two phases. In the “attended” phase, participants were asked to count the number of deviants that occurred. It was assumed that, while identifying the number of deviant stimuli, the participant was actively listening to the stimuli. In the “non-attended” phase, participants were asked to ignore both the target and deviant stimuli, and any distractors.

The distractors were two continuous different stories spoken by the same speaker. Target, deviant and distractor stimuli were convolved with head-related transfer functions (HRTFs) to create two spatial conditions: the co-located condition with targets, deviants and distractors coming from 0⁰ azimuth; and the separated condition with the targets and deviants at 0⁰, but with each distractor shifted to each side (± 90⁰ azimuth). Three SNRs were considered (-5, -0, and 5 dB).

The amplitudes of the FFR in response to F0 were determined and analysed. The results of study 1 revealed a significant effect of spatial separation.  The effect of spatial separation was found only at the lower SNR. Spatially separating maskers from the target stimuli resulted in a significant larger amplitude of the FFR in response to the target F0. The spatial advantage obtained objectively was equivalent to an SNR increase of 3.3 dB. A significant effect for attention was found when participants actively focused on the target, as demonstrated by larger FFR amplitudes. However, no significant interactions were found between spatial separation and the level of attention.

The findings of the first study suggest that binaural processing relevant to SRM may be reflected by phase locked neural activity in the brainstem. However, this objective measure may only be noticeable in relatively noisy environments. Furthermore, SRM may start early in the central auditory pathways regardless of one attending to the target stimuli or not. This last observation means that - although this thesis focuses on adults - an extrapolation potentially could be made towards the use with younger individuals, however with consideration of their brain differences with adults and the AEPs evoked from those brains. The lack of dependence on attention might be beneficial in investigating SRM in this population, where it is difficult to keep attention and one has to rely on objective techniques that do not require attending to the target stimulus. Conversely, the lack of interaction with attention may mean that the mechanism responsible for the objective results may be different from the mechanism primarily responsible for SRM.

To identify whether objective markers of SRM can be recorded in either the brainstem or cortex (or both), a second study was conducted. In the second study, auditory brainstem responses (ABRs), FFRs, and cortical auditory evoked potentials (CAEPs) were recorded simultaneously from thirteen normally hearing adults in response to 200 target stimulus blocks. Each target stimulus block comprised of a series of 11 tone complexes (TCs), with each TC having a specific F0 and a duration of 30 ms, separated by a 30 ms interstimulus interval (ISI), resulting in a target stimulus block with a total duration of 630 ms. The blocks were repeated every 1200 ms. Two different target stimulus block paradigms were considered; flat and staircase. The ‘flat’ blocks had TCs with a constant fundamental frequency F0 of 325 Hz (and harmonics up to 6 kHz). In the ‘staircase’ blocks, the fundamental frequency of each TCs was reduced in steps of 30 Hz from 475 to 175 Hz, again with harmonics up to 6 kHz.

ABRs were recorded to the onsets of the 30-ms TCs. FFRs were recorded in response to the F0s of the TCs, and CAEPs to the onsets of the target stimulus blocks. The distractor blocks, in contrast, comprised of blocks of TCs that were similar in number and duration to the target stimuli, but randomized in their F0 distribution from 100 to 550 Hz and jittered in time (+/- 15 ms) around the onset of the target TC. Both target and distractor stimuli were convolved with head-related transfer functions (HRTFs) and presented under headphones. The target stimuli were presented at 0⁰ azimuth. The distractors were co-located (at 0⁰ azimuth) and spatially separated (at ±90⁰ azimuth) from the targets. The targets were presented at SNRs of -5, 0, 5, 10 and 15 dB SNR, and at 60 dB SPL.

After extraction and analysis of ABR amplitudes and latencies, and FFR amplitudes, the results of the second study revealed a significant effect of SRM as seen in a decrease in ABR latency for both flat and staircase target stimuli when spatially separating maskers from the target. FFR amplitude (only measured with the flat stimuli) was significantly larger in the separated condition, and a significant decrease in CAEP latencies (for the staircase stimuli) was found, but only at the lowest tested SNR of -5 dB. These results, particularly the FFR, confirmed the results obtained in the first study, i.e. separating distractors from the target, regardless of the type of stimulus being used, resulted in enhancing FFR F0 amplitude. However, due to noisy data, the observations at the cortical level need to be confirmed in a follow-up study. The spatial advantage was equivalent to a SNR increase of 4.3 dB for FFR amplitude (for the flat stimuli), and 13.8 dB for ABR latency, 11.2 dB for CAEP P1 and 19.9 dB for CAEP N1 latencies (for the staircase stimuli).

 The findings of the second study suggest that it is possible objectively to record SRM in both the brainstem and auditory cortex simultaneously at lower SNRs. This suggests that the central auditory system is able to squelch background noise via processing of spatial information, and that this capacity is higher in more challenging listening environments.    

Taken together, the results from the first and second studies suggest that it is feasible to use electrophysiological measures as a means of investigating the central auditory mechanisms, which contribute to SRM in the brainstem and cortex simultaneously. It is speculated that SRM occurs mainly at the level of the brainstem and is present at -5 dB SNR (i.e. difficult listening environments). The finding that SRM was primarily at lower SNRs is in reality not a clinical concern, as lower SNRs represent the environments in which SRM is generally found to be beneficial for the listener. Potential applications may be found in developing an objective detection test for spatial processing disorder (SPD), a condition in which normal-hearing individuals are unable to exploit the binaural mechanism of SRM when listening in noisy environments, i.e., a deficiency in selectively attending to target sounds, which are not spatially co-located with distractor sounds. Further studies are needed to investigate the effects of attention and SRM on brainstem and cortical responses in different populations including children, elderly, and people with SPD.    

2.

Fellowship


Medical Education, Tehran University of Medical Science, Tehran , Iran, Oct. 2005
3.

M.Sc


Audiology, Tehran University of Medical Science, Tehran, Iran, Sept 1999
Thesis Title:Normalized traditional and Extended High-Frequency Threshold (0.25 – 20 KHz) In Top Grade Ranking Primary School Children
4.

B.Sc


Audiology, Tehran University of Medical Science, Tehran, Iran, Jan 1995
1.

Arabic


Speaking: Poor, Reading: Poor, Writing: Poor
2.

Kurdish


Speaking: Good, Reading: Good, Writing: Good
3.

English


Speaking: Good, Reading: Good, Writing: Good
4.

Persian


Speaking: Good, Reading: Good, Writing: Good
1.

Award


May 4-7, 2014,

 Award for presenting a paper at the XXXII world congress of Audiology

مو قعيت علمي _ آكادميك

1.

Member of executive Committee


1st Iranian congress of Audiology, 1993-1993
2.

Member of Scientific Committee


2nd convention on clinical application of OAE, 2001-2001
3.

Member of Scientific Committee and Chairperson


4th Iranian congress of Audiology, 2002-2002
4.

Member of Scientific Committee


7th Iranian Scholar Meeting of Audiology, 2002-2002
5.

Member of Executive Committee


1st Iranian Convention on newborn and children screening, 2006-2006
6.

Member of Scientific Committee


10th Iranian Scholar Meeting of Audiology, 2006-2006
7.

Scientific Manager


6th Iranian congress of Audiology, 2007-2007
8.

Member of Scientific & Executive Committee


7th Iranian congress of Audiology, 2008-2008
9.

Member of Scientific & Executive Committee


7th Iranian congress of Audiology, 2008-2008
10.

Committee secretary of seminars and journal club


Dept. of Audiology, 2002-2009
11.

Member of Scientific Committee


13th Iranian Scholar Meeting of Audiology, 2010-2010
12.

Member of Scientific Committee


9th Iranian congress of Audiology, 2010-2010
13.

Member of article peer reviewing board of “Iranian journal of Audiology”


Dept. of Audiology, 2005
14.

Article peer reviewer


Iranian Journal of Pediatric, 2010
15.

Article peer reviewer


Auditory and vestibular Research, 2016
16.

Article peer reviewer


Journal of Rehabilitation Medicine, 2016
17.

Member of Scientific Committee


15th Iranian congress of Audiology, 2016-2016
18.

Member of Scientific Committee


16th Iranian congress of Audiology, 2017-2017
19.

Member of Scientific Committee


19th Iranian Scholar Meeting of Audiology, 2017-2017
20.

Member of Editorial Board


Journal of Modern Rehabilitation, 2017
21.

Member of scientific committee


Second biannual Central auditory processing disorder, 2018-2018
22.

Member of scientific committee


17th Iranian congress of Audiology, 2018-2018
23.

Graduate and Post graduate Representative


Dept. of Audiology, 2017

سمت اجرايي

1.

Consultant of Head and Voice –Chancellor for administration and finance


School of Medicine, TUMS,
2.

Social-cultural deputy


School of Rehabilitation, Tehran University of Medical Sciences, 218

Scientific Position

1.

Advisor


Undergraduate and Postgraduate students,

B.Sc

1.

Advanced Audiologic Tests


Since 2019 School of Rehabilitation, Tehran,B.Sc.
2.

Rehabilitation methods in hearing impairment people


since Jan 2002-2012 School of Rehabilitation, Tehran,B.Sc.
3.

Auditory training


since Oct 2002-2012 School of Rehabilitation, Tehran,B.Sc.
4.

Supervisor & instructor of auditory training clinic


since Jan 2002-2012 School of Rehabilitation, Tehran,B.Sc.
5.

Language therapy in hearing impairment children


since Jan 2003-2012 School of Rehabilitation, Tehran,B.Sc.
6.

Seminar


Oct. 2004, Oct. 2006, Oct 2010 B.Sc.
7.

Psychoacoustic


since Jan 2006 B.Sc.
8.

Principles and Fundamentals of Audiologic Re/habilitation


since Oct. 2008-2012 School of Rehabilitation, Tehran,B.Sc.
9.

Acoustic and psychoacoustic


Jan 2009-2012 School of Rehabilitation, Tehran,B.Sc.
10.

Industrial acoustic


Jan 2009-2012 School of Rehabilitation, Tehran,B.Sc.

M.Sc

1.

Seminar in Audiology


Since 2016 School of Rehabilitation, Tehran,M.Sc.
2.

Auditory and speech perception


Since 2016 School of Rehabilitation, Tehran,M.Sc.
1.

Central auditory processing disorder (CAPD): from diagnosis to treatment


Tehran University of Medical Sciences, School of Rehabilitation, Feb 2019 Feb 2019, هماهنگ كننده , Organizer
2.

Clinical Masking


Tehran University of Medical Sciences, School of Rehabilitation , Dec 2018 هماهنگ كننده , Organizer
3.

HEARlab


17th Iranian congress of Audiology, Tehran, Jun 2018 Jun 2018, سخنرانی, Lecturer
4.

One-day conference of hearing aids in tinnitus patients


Iranian Society of Audiology, Tabriz, Oct 2018 Oct 2018, سخنرانی, Lecturer
5.

One-day conference on new speech processing technology in hearing aids and assistive listening devices


Jondi shapour University, Ahvaz, Nov 2017 Nov 2017, سخنرانی, Lecturer

Supervisor

1.

- The Effect of Auditory Experience with Polyphonic Music (Multilingual) on the Performance of Auditory, Visual, and logic Memory in individual with normal hearing


Shima Habibzadeh,
M.Sc, Audiology, 2019
2.

- Translation, Determining the validity and reliability of the Persian version of the Fisher questionnaire


Sanaz Shakiba,
B.Sc, Audiology, 2019
3.

- Effect of noise and fatigue on acceptable noise level


Nafiseh Haydari,
M.Sc, Audiology, 2018
4.

- Study on binaural and monaural auditory processing in patients with Multiple Sclerosis


Mahsa habibi,
M.Sc, Audiology, 2019
5.

- Investigating extended high frequency hearing threshold and distortion product otoacoustic emissions in the central auditory processing of individuals with normal hearing in conventional audiometric frequencies working in industrial environments


Athareh Farahani,
M.Sc, Audiology, 2019
6.

- Effect of caffeine consumption on speech and noise simultaneous reception function in normal hearing using acceptable noise level test in Persian language


Seyyed Mohannad Reza taghavi,
M.Sc, Audiology, 2018
7.

Evaluation of dichotic listening in type 2 diabetic patients


Atlas Haghighattalabi,
M.Sc, Audiology, 2017
8.

Comparison of amplitude and latency and amplitude of P300 auditory event related potential in insulin dependent (type I) diabetic patients and normal individuals aged 20-40


Parisal Jalilzadeh Afshar,
M.Sc, Audiology, 2011
9.

Comparison between multiple sclerosis and normal 18-40-year-old participants utilizing the gap in noise (GIN) and the duration patterns sequence test (DPST)


Ayoub Valadbaygi,
M.Sc, Audiology, 2011
10.

Neuroscience, neurobiology, and management in CAPD


Aliakbar Nasre Esfahani,
B.Sc, Audiology, 2011
11.

The correlation of psychoacoustic responses of 18-25-year-old normal participants to speech in presence of narrow band noise in octave and half octave frequencies


Kadijeh Zareei and Roghyeh Mohammdi,
B.Sc, Audiology, 2011
12.

Developing the normalized materials for identification level of auditory training designed for Persian children aged 5-3Ys old


Roghayeh Rasoli and Noushin Talebi,
B.Sc, Audiology, 2010
13.

Cochlear Implant in Children and Adults


Saydeh Manoush Sobhani,
B.Sc, Audiology, 2003
14.

Educational Audiology


Mohsen Moslem,
B.Sc, Audiology, 2004
15.

Aural Re/Habilitation in Children


Mohamad ali Barbari,
B.Sc, Audiology, 2004
16.

Validity of Hearing Handicap Inventory for Adult Screening by coparison with Hearing Handicap Inventory for Adult


Elahe Haydarian Shahrbabaki and Elham Rashadi Ferdos,
B.Sc, Auiology, 2005
17.

Preparing Persian Version of NHHI and applying on Older Adults Who are the Resindence of Nursing Home and comparing it with Audi


Zaynab Tatar,
B.Sc, Auiology, 2006
18.

Evaluation of Hearing – Impaired Adults' Communication problems by Persian Version of Quantified Denver Scale of Communication F


Mahsa Bakhit,
B.Sc, Auiology, 2006
19.

Development an Auditory Training Test , entitled as Hermes, Designed for Evaluation of Auditory Speech Perception in Persian Chi


Mahbobeh Eslami and Naeimeh Mohamadpanah,
B.Sc, Auiology, 2007
20.

Effective Factors that Influence development Process of Auditor Training in Hearing Impaired Children


Elahe Paknduad,
B.Sc, Auiology, 2007
21.

The reliability and Validity of Hermes Auditory Training Test for 3-5- year-old Persian Hearing Impaired Children


Shima Khani and Forogh Yonesi,
B.Sc, Auiology, 2008
22.

The Comparative study of Auditory Training Methods for Children under 5 Years Old


Ayda Gharavi and Khatereh Vojodi,
B.Sc, Auiology, 2009
23.

Brain Activities throughout Audiovisual Speech Perception by fMRI


Yasaman Nojaba,
M.Sc, Audiology, 2009

-

1.

Frequency Distribution of Hearing Loss among Primary School Students (Aged 7-12 years old) in Shiraz Province


Mohamad Reza Parhizgar, et al,
Audiology, 2003
2.

Preparation and Evluation of SKI-HI a Parent-Infant Auditory Training program for Under 3-Year-Old Hearing Impaired Children


Jaleh Samadi, et al,
Audiology, 2005
3.

Comparing of Suppression Effect of TEOAE in MS and Normal Subjects


Maryam Abed, et al,
Audiology, 2006
4.

A Comparison Study on Latency of ABR Waves (I, III, and V) and Amplitude ratio of V/I in Premature and Mature New born (0-28 Day


Mahbobeh Shaykhzadeh, and et al,
Audiology, 2007
5.

Effect of Traffic Noise on Acid and Pepsin Secretion in Rat


Azam Moslhi, et al,
Phisiology, 2009

Farsi

1.

Auditory Training


Authors: Rouhbakhsh N
Publisher: Limited Publication, School of Rehabilitation, TUMS, 2003, 2010, Original
2.

Psychoacoustic


Authors: Rouhbakhsh N
Publisher: Limited Publication, School of Rehabilitation, TUMS, 2005, 2010, Original
3.

Language Training


Authors: Rouhbakhsh N
Publisher: Limited Publication, School of Rehabilitation, TUMS, 2003, 2010, Original
4.

Fundamental and Principle of Rehabilitative Audiology


Authors: Rouhbakhsh N
Publisher: Limited Publication, School of Rehabilitation, TUMS, 2002, 2010, Original

Papers

English

1.

Spatial hearing processing electrophysiological documentation at subcortical and cortical levels


Authors: Nematollah Rouhbakhsh, John Mahdi, Jacob Hwo, Baran Nobel & Fati Mousave
International Journal of Neuroscience, Year. 2019,
2.

Investigating the effect of extended high-frequency hearing loss on duration pattern sequence test


Authors: Athareh Farahani, Saeid Farahani1, Nematollah Rouhbakhsh, Farzaneh Zamiri Abdollahi, Masoud Bolandi
Auditory and Vestibular Research, Vol.28, No.3, Year. 2019,
3.

Persian version of attitudes towards loss of hearing questionnaire


Authors: Parisa Heidari, Jamileh Fatahi, Reza Hoseinabadi, Nematollah Rouhbakhsh, Sasan Dabiri Satri, Gabrielle Helena Saunders, Elham Faghihzadeh
Auditory and Vestibular Research, Vol.28, No.2, Year. 2019,
4.

Experiencing polyphonic music may enhance memories retention


Authors: Shima Habib Zadeh, Nematollah Rouhbakhsh, Ghasem Mohammad Khani
Auditory and Vestibular Research, Vol.28, No.2, Year. 2019,
5.

Translation, Validity, and Reliability of the Persian Version of the Fisher Auditory Problems Checklist


Authors: Sanaz Shakiba, Nematollah Rouhbakhsh, Qasem Mohammadkhani, Farzaneh Zamiri Abdollahi, Elham Faqih Zadeh
Journal of Madern Rehabilitation, Vol.12, No.3, Year. 2018,
6.

Objective Peak-Detection in Complex Auditory Brainstem Response to /ba/, /da/, /ga/: A Novel Technique


Authors: Negar Amirian, Farhad Tabatabai Ghomsheh, Mohsen Vahedi, Nematollah Rouhbakhsh, Amir Salar Jafarpisheh
Iranian Rehabilitation Journal, Vol.16, No.3, Year. 2018,
7.

Effects of short-term caffeine consumption on speech and sound reception in individuals with normal hearing


Authors: Seyyed Mohammad Reza Taghavi, Ahmad Geshani, Nematollah Rouhbakhsh, Shoreh Jalaie, Akram Pourbakht, Abbas Kebriaeezadeh, Mohammadsaleh Moosapour Bardsiri
Auditory and Vestibular Research, Vol.27, No.3, Year. 2018,
8.

Evaluation of dichotic hearing in type 2 diabetic patients


Authors: 27
Auditory and Vestibular Research, Vol.1, Year. 2018,
9.

Acceptable noise level test: bases and theories


Authors: Seyyed Mohammad Reza Taghavi, Ahmad Geshani, Nematollah Rouhbakhsh, Shima Habibzadeh Mardani
Auditory and Vestibular Research, Vol.26, No.4, Year. 2017,
10.

Traffic Noise Exposure Increases Gastric Pepsin Secretion in Rat


Authors: Azam Moslehi, Fatemeh Nabavizadeh, Mansoor Keshavarz, Nematollah Rouhbakhsh, Masoud Sotudeh, Ehsan Salimi, Amir Barzegar Behrooz
Acta Med Iran, Vol.54, No.3, Year. 2016,
11.

Central auditory processing and word discrimination in patients with multiple sclerosis


Authors: Ayub Valadbeigi, Farzad Weisi, Nematolah Rohbakhsh, Mohammad Rezaei, Atta Heidari, Amir Rahmani Rasa
European Archives of Oto-Rhino-Laryngology, Vol.271, No.11, Year. 2014,
12.

Traffic Noise Exposure Increases Gastric Acid Secretion in Rat


Authors: Azam Moslehi، Fatemeh Nabavizadeh-Rafsanjani، Mansoor Keshavarz، Nematollah Rouhbakhsh، Masoud Sotudeh، Ehsan Salimi
ACTA MEDICA IRANICA, Vol.48, No.2, Year. 2010,

Farsi

1.

Cognitive disorders in patients with insulin-dependent type I diabetes mellitus


Authors: Parisal Jalilzadeye Afshar, Ghasem Mohammadkhani, Nematollah Rouhbakhsh, Ensiye Nasri Esfahani, Shohraye Jalaei
Auditory and Vestibular Research, Vol.22, No.2, Year. 2013,
2.

Cognitive disorders in patients with insulin-dependent type I diabetes mellitus


Authors: Parisa Jalilzadeh afshari, Ghassem Mohamadkhani, Nematollah Rouhbakhsh, Shohreh Jalaie, Ensieh Nasli Esfahani
Iranian Journal of)Auiology), Vol.22, No.2, Year. 2013,
3.

Comparing the results of Persian staggered spondaic word test in persistent developmental stutterers and normal subjects


Authors: Zakieh Fallahzadeh, Seyyed Ali Akbar Tahaei, Fahimeh Hajiabolhassan, Shohreh Jalaie, Mohammad Rahim Shahbodaghi, Nematollah Rouhbakhsh
(Iranian Journal of)Auiology, Vol.22, No.3, Year. 2013,
4.

Effect of sex and rate of stimulus on auditory brainstem responses of children with history of preterm birth


Authors: Sara hasani, Zahra Jafari, Nematollah Rouhbakhsh, Masoud salehi
(Iranian Journal of)Auiology, Vol.22, No.2, Year. 2013,
5.

Comparison of amplitude and latency and amplitude of P300 auditory event related potential in insulin dependent (type I) diabetic patients and normal individuals aged 20-40


Authors: Parisal Jalilzadeye Afshar, Ghasem Mohammadkhani, Nematollah Rouhbakhsh, Ensiye Nasri Esfahani, Shohraye Jalaei
(Iranian Journal of)Auiology, Vol.22, No.2, Year. 2013,
6.

Evaluation of hearing disability in adults with slight to profound hearing loss using Persian version of quantified Denver scale of communication function


Authors: Bakhit M, Rouhbakhsh N, Delphi M
Research in Rehabilitation Sciences, Vol.8, No.5, Year. 2012,
7.

Comparison the duration patterns sequence test (DPST)


Authors: Ayoub Valadbaygi, Nematollah Rouhbakhsh, Ghasem Mohammadkhani, Lila Jalilvan Karimi, Mohmmad Ali Sahraeian, Shohraye Jalaei, Frank E Musiek
Journal of Madern Rehabilitation, Vol.5, No.4, Year. 2012,
8.

Comparison the duration patterns sequence test (DPST


Authors: Ayoub Valadbaygi, Nematollah Rouhbakhsh, Ghasem Mohammadkhani, Lila Jalilvan Karimi, Mohmmad Ali Sahraeian, Shohraye Jalaei, Frank E Musiek
Journal of Modern Rehabilitation, Vol.21, No.4, Year. 2012,
9.

Brain activity throughout audiovisual speech perception by fMRI


Authors: Yasaman Nojaba- Nematollah Rouhbakhsh. Mohamad Oghabiyan. Shohre Jalaei. Sina Houshmand
(Iranian Journal of)Auiology, Vol.20, No.1, Year. 2011,
10.

The comparison study of articulation errors in cochlear implant children before 3 and after 4 years old


Authors: Mohsen Saeedmanesh، Azar Meri، Nematollah Rouhbakhsh، Majid Bitraf ، Parvin Ketabdar
Vol.16, No.1, Year. 2007,
11.

Internal evaluation of Audiology department, Faculty of Rehabilitation, Tehran University of Medical Sciences, Iran


Authors: Mahin Sedaie، Fereshteh Farzianpour، Mansoureh Adel Ghahraman، Ghasem Mohammad Khani، Jamileh Fattahi، Saeed Sarough Farahani، Nematollah Rouhbakhsh، Mahnaz Ahmadi
Vol.16, No.1, Year. 2007,
12.

A comparison of self-reported hearing handicap and audiometric thresholds in nursing home residents


Authors: Nematolla Rouhbakhsh، Zaynab Tatar، Dr. Mahmoud Alipour Haydari
Iranian Journal of)Auiology, Vol.15, No.2, Year. 2007,
13.

Preparation and evaluation of SKI-HI: A parent-infant auditory training program for under 3- year -old hearing impaired children


Authors: Jaleh Samadi، Mahin Sedaei، Nematollah Rouhbakhsh، Saeed Asad Malayeri ، Dr. Soghrat Fagh
(Iranian Journal of)Auiology, Vol.15, No.1, Year. 2006,
14.

Comparing the Amplitude and Latency Of Auditory Middle Latency Responses In Congenitally Blind And Normally Sighted Subjects 14-20 Yrs Old


Authors: Gh. Mohamad-khani, A. Molasadeghi, H. Majidi, Z. Jafari,N. Rouhbakhsh, S. Asadmalayeri, Sh. Jalaee
Tehran University Medical Journal, Vol.64, No.1, Year. 2006, Page:1-6,
15.

The Comparison Study of Contralateral Transient Evoked Otoacoustic Emission (TEOAE) Suppression in Normal Hearing Subjects and Multiple Sclerosis Patients


Authors: Mohamadkhani Gh, Aubed M, Rouhbakhsh N, Majidi H, Alipour Heidari M
Armaghn-e-Danesh, No.44, Year. 2006,
16.

High-Frequency Threshold (10 - 20 KHz) in Top Grade Ranking Primary School Children


Authors: Nematollah Rouhbakhsh، Abdollah Mousavi، Mehrnaz Karimi، Gholamreza Babaei
(Iranian Journal of) Audiology, Year. 2001, Page:14-15,
17.

New theory of Hearing


Authors: N ematollah Rouhbakhsh
(Iranian Journal of) Audiology, No.7-8, Year. 1998,

Abstracts and Presentations

Farsi

1.

The Rehabilitation Protocols of Hearing Impairment Children


In School of Rehabilitation, TUMS
Date: Mar. 2002- Lecturer,
2.

Management of Children with Developmental Disorders


In the Meeting of “The Role of Sensory Integration in Management of Developmental Disorders with emphasis on sound Therapy
Date: Jan. 2003- Lecturer,
3.

Geriatric


In 11th Iranian Scholar Meeting of Audiology
Date: Dec. 2006- Lecturer,
4.

Auditory Training


In 6th Iranian Congress in Audiology
Date: May 2007- Lecturer,
5.

Central and Peripheral Hearing Rehabilitation


In 7th Iranian congress in Audiology
Date: May 2008- Lecturer,
6.

Educational Audiology


In 9th Iranian Congress in Audiology
Date: April 2010- Lecturer,
7.

Proficient to adapt to foreign culture (Setting)


Type : Poster, Learner,
8.

Capable to handle hearing screening in community


Type : Poster, Learner,
9.

Couldconduct hearing evaluation and interpretation in both children and adults


Type : Poster, Learner,
10.

Work expertly with hearing impaired children based on both auditory and language training


Type : Poster, Learner,
11.

The Psychosocial and communicative effects of Presbyacusis in Geriatric Using Analysis of HHIE-S Questionnaire


3rd Congress on Geriatric Issues in Iran and through the World
Date: March 2007-
Authors: Tavana
Type : Poster, Learner,
12.

The Relationship between Language Development and Cognitive Neuroscience, Neuroplasticity, and Molecular level


6th Iranian Congress in Audiology
Date: April 2007-
Authors: Nematollah Rouhbakhsh, Roza Hasanzadeh
Type : Poster, Learner,
13.

An Approach to Cochlear Mathematic Behaviors


6th Iranian Congress in Audiology
Date: April 2007-
Authors: Nematollah Rouhbakhsh, Saydeh Saeideh Javadi
Type : Poster, Learner,
14.

The Neuroscience Characteristics of Tinnitus and the Role of CNS Neuroplastic Process


8th Iranian Congress in Audilogy
Date: May 2009-Type : Poster, Learner,
15.

The Relationship between Noise Induced Hearing Loss and Increasing Clustrol, Treeglisrid, and Low Density Lipoprotein in Blood P


8th Iranian Congress in Audilogy
Date: May 2009-Type : Poster, Learner,
16.

The effects of Vitamins on Hearing


12th Iranian Scholar Meeting of Audiology
Type : Poster, Learner,
17.

Auditory Finding in chizophrenia


9th Iranian Congress in Audilogy
Date: Apr. 2010-
Authors: Nematollah Rouhbakhsh, Taybeh Falahnduad
Type : Poster, Learner,
18.

Acupuncture in Audiology


9th Iranian Congress in Audilogy
Date: Apr. 2010-
Authors: Mayam Parsa, Mahiya Sharifi Nik, Nematollah Rouhbakhsh
Type : Poster, Learner,
19.

Minimum Auitory Angle ( MAA) in Children with Cochlear Implant and Children with Profound Hearing Loss Using Hearing Aids


9th Iranian Congress in Audilogy
Date: Apr. 2010-
Authors: Nematollah Rouhbakhsh, Mahsa Solymani, Ayob Valadbaygi
Type : Poster, Learner,
20.

High-Frequency (10-20 Khz) in Primary School Children


3rd Iranian Cogross in Audiology
Date: 1999-
Authors: Nematollah Rouhbakhsh, Abdollah Mousavi, Mehrnaz Karimi, Gholamreza Babaei
Type : Presentaion, Lecturer,
21.

Cochlear Mechanism from Mathematic and Physic point of view


1st Meeting of Clinical Application of OAE
Date: Jan. 2001-
Authors: Nematollah Rouhbakhsh
Type : Presentaion, Lecturer,
22.

Steps of Communication Training to Hearing Impairment Children


2ed, 3rd ,and 6th Meeting of Parents who have Hearing Impairment Children
Date: Sept. & Oct. 200-
Authors: Nematollah Rouhbakhsh
Type : Presentaion, Lecturer,
23.

The Important reason to identify the behaviors of Hearing Impairment Children


7th Meeting of Parents who have Hearing Impairment Children
Date: April 2002-
Authors: Nematollah Rouhbakhsh
Type : Presentaion, Lecturer,
24.

The Logical Bases of Elangation in Re/Habilitation Program


8th Meeting of Parents who have Hearing Impairment Children
Date: June 2002-
Authors: Nematollah Rouhbakhsh
Type : Presentaion, Lecturer,
25.

How parents can Create Social Skills in Hearing Impairment Children


9th and 10th Meeting of Parents who have Hearing Impairment Children
Date: Sept. Oct. 2002-
Authors: Nematollah Rouhbakhsh
Type : Presentaion, Lecturer,
26.

The Role of Communication in Language and Speech Development of Hearing Impairment Children


11th Meeting of Parents who have Hearing Impairment Children
Date: Nov. 2002-
Authors: Nematollah Rouhbakhsh
Type : Presentaion, Lecturer,
27.

Personality Characteristics of Hearing impairment Children 2-5 Years old


12th Meeting of Parents who have Hearing Impairment Children
Date: Dec. 2002-
Authors: Nematollah Rouhbakhsh
Type : Presentaion, Lecturer,
28.

How We Can Increase Leap Reading and Speech Reading Skills in Hearing Impairment Children


13th Meeting of Parents who have Hearing Impairment Children
Date: Jan. 2003-
Authors: Nematollah Rouhbakhsh
Type : Presentaion, Lecturer,
29.

Comparison Articulation Error and MLU between Children Using Cochlear Implant before 3-year-old and Children after 4-year-old in


6th Iranian Congress in Audiology
Date: April 2005-
Authors: Mohsen Saeidmanesh, Zahra Solimani, Azar Mehri, Nematollah Rouhbakhsh, et al
Type : Presentaion, Lecturer,
30.

Evaluation of Hearing Handicap in Nursery Home Residents Using Self-report Approach and Comparison With Audiometric thresholds


Geriatric Congress
Date: Nov. 2007-
Authors: Nematollah rouhbakhsh, Zainab Tatar, Mahmoud Alipour
Type : Presentaion, Lecturer,
31.

Auditory Training Methods


1st Meeting of Medical Science Branches throughout Iran
Date: Fab. 2007-
Authors: Nematollah Rouhbakhsh
Type : Presentaion, Lecturer,
32.

Comparison of Auditory Discrimination Capability Between children With Cochlear Implant and Children with Moderate Hearing Loss


7th Iranian Congress in Audiology
Date: May 2007-
Authors: Nematollah Rouhbakhsh, Mohsen Saeidmanesh, et al
Type : Presentaion, Lecturer,
33.

Brain Activities during Perception of Auditory-Visual Speech Stimuli: An fMRI Study


8th Iranian Congress in Audilogy
Date: May 2009-
Authors: Yasaman Nojaba, Nematollah Rouhbakhsh, Oghabian, Sina Hoshmand, Shohre Jalaei
Type : Presentaion, Lecturer,
34.

Effects of Anemia on Hearing system


12th Iranian Scholar Meeting of Audiology
Date: Nov. 2008 -Type : Presentaion, Lecturer,
35.

The Relationship between Hyperlipidemia and Noise Induced Hearing Loss


12th Iranian Scholar Meeting of Audiology
Date: Nov. 2008-Type : Presentaion, Lecturer,
36.

Brain Activities during Perception of Congruent and Noncongruent Phonetic Stimuli using fMRI


9th Iranian Congress in Audilogy
Date: Apr. 2010-
Authors: Ysaman Nojaba, Nematollah Rouhbakhsh, Mohamadali Oghabiyan, Sina Houshmand, Shore Jalaei
Type : Presentaion, Lecturer,

English

1.

The Management of CAPD


In Congress of Neurootalgy, Neuroaudiology, and Brainstem Surgery
Date: Apr. 2003- Lecturer,
1.

Iranian Journal of Pediatric


2010- Referee,
2.

Auditory and vestibular Research


2016- Referee,
3.

Journal of Rehabilitation Medicine


2016- Referee,
4.

Journal of Modern Rehabilitation


2017- Editorial Board Member,
5.

Iranian Journal of Audiology


since Oct. 2005- Others,

Executive Manager

1.

software


  • Familiar with Cool edit 
2.

Software


Familiar with MATLAB 

3.

Software


Can use STATISTICA software 

4.

Computer


-         Can use reasonably office software

-         Familiar with SPSS software

-         Familiar with Praat software 

1.

Member of Faculty Union of TUMS


Activity Type:Member
2.

Member of Iranian Association of Audiology


Activity Type:Member
3.

Member of Iranian Rehabilitation Teachers’ Association


Activity Type:Member
4.

Member of Scientific Committee, 2nd convention on clinical application of OAE


Activity Type:member of committee
Jan 2001
5.

Member of Scientific Committee and Chairperson, 4th Iranian congress of Audiology


Activity Type:member of committee
Nov. 2002
6.

Member of Scientific Committee, 7th Iranian Scholar Meeting of Audiology


Activity Type:member of committee
May 2002
7.

Member of Executive Committee, 1st Iranian Convention on newborn and children screening


Activity Type:member of committee
Sept. 2006
8.

Member of executive Committee, 1st Iranian congress of Audiology


Activity Type:member of committee
Oct. 1993
9.

Member of Scientific Committee, 10th Iranian Scholar Meeting of Audiology


Activity Type:member of committee
10.

Scientific Manager, 6th Iranian congress of Audiology


Activity Type:Others
May 2007
11.

Member of Scientific & Executive Committee, 7th Iranian congress of Audiology


Activity Type:member of committee
May 2008
12.

Member of Scientific Committee, 14th Iranian Scholar Meeting of Audiology


Activity Type:عضو کمیته علمي
13.

Member of Scientific Committee, 9th Iranian congress of Audiology


Activity Type:member of committee
Apr. 2010
14.

Dept. of Audiology, school of Medicine, TUMS


Activity Type:عضو کمیته علمي
15.

seminars and journal club of Dept. of Audiology, school of Medicine, TUMS


Activity Type:Secretary

Committee secretary

1. Electrophysiology
2. Speech perception
3. Central Auditory Processing Disorders
4. Central Auditory Processing
5. Auditory spatial processing disorder
6. Auditory spatial processing

My specific field of study is Central Auditory Processing and its disorders (CAPD) with more focusing on Spatial Processing Disorder(SPD). Auditory processing refers to the set of activities of the auditory system during the processing of acoustic signals. The central auditory processing(CAP) system plays a fundamental role in determining the status and identity of the signals reached by the system utilizing various complex processes. For determination of the targeted signal, CAP uses a variety of strategies. Some of these strategies include, lateralization and localization, processing of temporal aspects (resolution, arrangement, accumulation and coverage), and processing of degraded and corrupted signals.While paying attention to these processing components in the research, I am interested in the field of spatial hearing processing in a particular way. In this regard, I have also completed my PhD dissertation, as well as been conducting various projects and ongoing works. To put it simply, spatial hearing processing (SHP) is the processing of signal-polluted noise, in which a hierarchical central processing involves attentional mechanisms. SHP refers to the spatial separation of signal and noise in a listening environment coming from different locations, which during this process CAP utilizes the delicate cues of the time and the intensity differences of incoming signals in the ears to extract the target signal from noise. Some school children (as well as adults), despite having normal hearing, are not able to focus on the target signal of their teacher and understand it. These people are in fact suffering from spatial hearing processing disorder (SHPD). SHPD is a particular type of hearing impairment in which an individual is not able to focus selectively on the target sound coming from one side in the presence of disruptive or interfering signals that simultaneously come from another side, hence cannot understand it. This disorder can be identified by behavioral and electrophysiological tests, hence can be treated appropriately.    

7.

Central Auditory Processing, Central Auditory Processing Disorder, Auditory Evoked Responses (AEPs), Auditory Event-Related Potentials (ERPs). 

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