COMPARISON OF AUDITORY EVENT - RELATED POTENTIAL P300 IN SIGHTED AND EARLY BLIND INDIVIDUALS

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HEYDARI F.; FARAHANI SAEID; MOHAMMADKHANI GH.; JAFARZADEHPOUR E.; JALAEI SHOHREH

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Journal: Auditory and Vestibular Research Journal Year:2009 | Volume:18 | Issue:1-2 Page(s): 81-87

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Title

COMPARISON OF AUDITORY EVENT - RELATED POTENTIAL P300 IN SIGHTED AND EARLY BLIND INDIVIDUALS

Author(s)

Keywords

EVENT - RELATED POTENTIALSQ2

P300Q3

AUDITORY STIMULATIONQ3

EARLY BLINDNESSQ3

NEURAL PLASTICITYQ3

Abstract

Background and Aim: Following an early visual deprivation, the neural network involved in processing auditory spatial information undergoes a profound reorganization. In order to investigate this process, EVENT - RELATED POTENTIALS provide accurate information about time course neural activation as well as perception and cognitive processes. In this study, the latency and amplitude of auditory P300 were compared in sighted and early blind individuals in age range of 18-25 years old.Materials and Methods: In this cross-sectional study, auditory P300 potential was measured in conventional oddball paradigm by using two tone burst stimuli (1000 and 2000 Hz) on 40 sighted subjects and 19 early blind subjects with mean age 20.94 years old.Results: The mean latency of P300 in early blind subjects was significantly smaller than sighted subjects (p=0.00). There was no significant difference in amplitude between two groups (p>0.05).Conclusion: Reduced latency of P300 in early blind subjects in comparison to sighted subjects probably indicates the rate of automatic processing and information categorization is faster in early blind subjects because of sensory compensation. It seems that NEURAL PLASTICITY increases the rate of auditory processing and attention in early blind subjects.

Cites

PREVALENCE OF DYSLEXIA IN FIRST TO FIFTH GRADE ELEMENTARY STUDENTS ISFAHAN, IRAN

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APA: Copy

HEYDARI, F., FARAHANI, SAEID, MOHAMMADKHANI, GH., JAFARZADEHPOUR, E., & JALAEI, SHOHREH. (2009). COMPARISON OF AUDITORY EVENT - RELATED POTENTIAL P300 IN SIGHTED AND EARLY BLIND INDIVIDUALS. AUDITORY AND VESTIBULAR RESEARCH, 18(1-2), 81-87. SID. https://sid.ir/paper/106231/en

Vancouver: Copy

HEYDARI F., FARAHANI SAEID, MOHAMMADKHANI GH., JAFARZADEHPOUR E., JALAEI SHOHREH. COMPARISON OF AUDITORY EVENT - RELATED POTENTIAL P300 IN SIGHTED AND EARLY BLIND INDIVIDUALS. AUDITORY AND VESTIBULAR RESEARCH[Internet]. 2009;18(1-2):81-87. Available from: https://sid.ir/paper/106231/en

IEEE: Copy

F. HEYDARI, SAEID FARAHANI, GH. MOHAMMADKHANI, E. JAFARZADEHPOUR, and SHOHREH JALAEI, “COMPARISON OF AUDITORY EVENT - RELATED POTENTIAL P300 IN SIGHTED AND EARLY BLIND INDIVIDUALS,” AUDITORY AND VESTIBULAR RESEARCH, vol. 18, no. 1-2, pp. 81–87, 2009, [Online]. Available: https://sid.ir/paper/106231/en

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