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Journal Article

Citation

Gandhi PH, Gokhale PA, Mehta HB, Shah CJ. Indian J. Psychol. Med. 2013; 35(3): 273-277.

Affiliation

Department of Physiology, Government Medical College, Bhavnagar, Gujarat, India.

Copyright

(Copyright © 2013, Indian Psychiatric Society, South Zone, Publisher Medknow Publications)

DOI

10.4103/0253-7176.119486

PMID

24249930

PMCID

PMC3821205

Abstract

BACKGROUND: Reaction time is the time interval between the application of a stimulus and the appearance of appropriate voluntary response by a subject. It involves stimulus processing, decision making, and response programming. Reaction time study has been popular due to their implication in sports physiology. Reaction time has been widely studied as its practical implications may be of great consequence e.g., a slower than normal reaction time while driving can have grave results. OBJECTIVE: To study simple auditory reaction time in congenitally blind subjects and in age sex matched sighted subjects. To compare the simple auditory reaction time between congenitally blind subjects and healthy control subjects. MATERIALS AND METHODS: STUDY HAD BEEN CARRIED OUT IN TWO GROUPS: The 1(st) of 50 congenitally blind subjects and 2(nd) group comprises of 50 healthy controls. It was carried out on Multiple Choice Reaction Time Apparatus, Inco Ambala Ltd. (Accuracy±0.001 s) in a sitting position at Government Medical College and Hospital, Bhavnagar and at a Blind School, PNR campus, Bhavnagar, Gujarat, India. OBSERVATIONS/RESULTS: Simple auditory reaction time response with four different type of sound (horn, bell, ring, and whistle) was recorded in both groups. According to our study, there is no significant different in reaction time between congenital blind and normal healthy persons. CONCLUSION: Blind individuals commonly utilize tactual and auditory cues for information and orientation and they reliance on touch and audition, together with more practice in using these modalities to guide behavior, is often reflected in better performance of blind relative to sighted participants in tactile or auditory discrimination tasks, but there is not any difference in reaction time between congenitally blind and sighted people.


Language: en

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