بررسی ارتباط بین امتیازات جفت همخوان-واکه صحیح در آزمون همخوان- واکه دایکوتیک با دامنه و زمان نهفتگی موج P300 در بزرگسالان با شنوایی طبیعی

نوع مقاله: مقاله پژوهشی

نویسندگان

1 کمیته پژوهشی دانشجویی، کارشناس ارشد شنوایی شناسی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشتی، تهران ، ایران

2 مربی گروه شنوایی شتاسی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید یهشتی، دانشجوی دکتری شنوایی شناسی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی تهران تهران، ایران

3 استادیار گروه شنوایی شناسی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی تهران، تهران، ایران

4 دانشجوی دکترا، گروه شنوایی شناسی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی ایران، تهران، ایران

5 استاد آمار زیستی، گروه علوم پایه، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران

چکیده

مقدمه و اهداف
اطلاعات کمی در مورد امتیاز جفت همخوان-واکه صحیح در آزمون همخوان-واکه دایکوتیک (DCV) وجود دارد و ماهیت آن بدرستی روشن نیست و به نظر می رسد که با توجه و تمرکز شنیداری در ارتباط باشد.از آنجا که موج P300 یکی از پتانسیل های وابسته به رخدادی است که در شکل گیری آن توجه و تمرکز نیز دخالت دارد،لذا این مطالعه با هدف بررسی رابطه بین امتیاز جفت همخوان-واکه صحیح با دامنه و زمان نهفتگی موج P300 انجام شد.
روش پژوهش
در این پژوهش مقطعی و غیر مداخله ای،توصیفی-تحلیلی، آزمون DCV، جهت بررسی امتیازات جفت همخوان-واکه صحیح و پاسخ P300شنوایی به روش تحریک متفاوت با استفاده از دو محرک تن برست،روی 37 فرد با شنوایی طبیعی در محدوده سنی 18 تا 30 سال( میانگین سنی 21/46سال)انجام شد.یافته ها بر اساس آزمون ضریب همبستگی پیرسون و نرم افزار SPSS16 ، مورد تجزیه و  تحلیل قرار گرفت.
یافته ها
بین امتیاز جفت همخوان-واکه صحیح در آزمونDCV  با دامنه موج P300 در جایگاه الکترودی Cz و Fz همبستگی مثبت و معنا داری مشاهده شد (P<0/01). بین امتیاز جفت همخوان-واکه صحیح با زمان نهفتگی موج P300 در جایگاه الکترودی Cz همبستگی مثبت و معنی دار مشاهده شد(P<0/05). اما بین امتیاز جفت همخوان-واکه صحیح با زمان نهفتگی موج P300 در جایگاه الکترودی Fz همبستگی معناداری مشاهده نشد،که احتمالا به علت دوری جایگاه الکترودی Fz از منبع تولید موج P300است.
نتیجه گیری
از آنجا که دامنه موج P300 با  توجه و زمان نهفتگی موج P300 با سرعت پردازش اطلاعات در ارتباط  است،به نظر می رسد که امتیاز جفت همخوان-واکه صحیح با توجه و سرعت پردازش اطلاعات، ارتباط داشته باشد. بنابراین شنوایی شناس باید در تفسیر نتایج،توجه فرد مورد آزمون را در نظر گیرد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Relationship between the Double Corrected Consonant-Vowel Responses Score in Dichotic Consonant-Vowel Test and Amplitude and Latency of P300 Wave in Adults with Normal Hearing

نویسندگان [English]

  • Rahele Ghasemipour 1
  • Leyla Jalilvand Karimi 2
  • Ghassem Mohammadkhani 3
  • Parisa Rasoulifard 4
  • Alireza Akbarzadeh Baghban 5
1 Student Research Committee, MSc in Audiology, Audiology Department, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2 Instructor, MSc in Audiology, Department of Audiology, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, PhD Candidate of Audiology, Department of Audiology, Tehran University of Medical Sciences, Tehran, Iran
3 Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
4 PhD Candidate of Audiology, Department of Audiology, Iran University of Medical Sciences, Tehran, Iran
5 Professor, Department of Basic Sciences, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
چکیده [English]

Background and Aims: There is little information on the double corrected consonant-vowel responses score in dichotic consonant-vowel test (DCV) and its nature is not entirely known. The only concept known is that it seems to be associated with auditory attention and concentration. Since P300 wave is one of the event-related potentials with attention as well as concentration involved in its formation, the present study was carried out to investigate the relationship between double corrected consonant-vowel responses score and the amplitude and latency of P300.
Materials and Methods: In the current non-interventional cross-sectional study, consonant-vowel dichotic test was performed to check double corrected consonant-vowel responses score and P300 auditory responses using odd-ball stimulation method and two tone burst stimuli on 37 participants with normal hearing. The participants were 18 to 30 year-old individuals (mean 21.46 years). To verify their right handedness, Edinburgh scale was used. The results were analyzed using Pearson's correlation coefficient in SPSS (v. 16).
Results: Significantpositive correlation was observed between double corrected consonant-vowel responses score in DCV test and P300 amplitude in both electrode positions of Cz and Fz (P <0/01). Also, double corrected consonant-vowel responses score and P300 latency were observed to be significantly and positively correlated at Cz electrode position (P<0/05).. However, there was no significant correlation between double corrected consonant-vowel responses score and P300 latency in Fz electrode position, which may be due to the Fz electrode position away from the source of the P300 wave.
Conclusion: Since the P300 amplitude is associated with attention and P300 latency is associated with information processing speed, it seems that double corrected consonant-vowel responses score is associated with attention and information processing speed. So, audiologists must consider the individual’s attention when interpreting the results

کلیدواژه‌ها [English]

  • Auditory capacity
  • Event-related potential
  • Auditory attention
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