Effect of Bhramari pranayama practice on simple reaction time in healthy adolescents – a randomized control trial

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Maheshkumar Kuppusamy ◽  
Dilara Kamaldeen ◽  
Ravishankar Pitani ◽  
Julius Amaldas ◽  
Padmavathi Ramasamy ◽  
...  
Keyword(s):  
Reaction Time ◽  
Cognitive Function ◽  
Simple Reaction Time ◽  
Control Group ◽  
Visual Reaction Time ◽  
Before And After ◽  
Visual Reaction ◽  
Auditory Reaction Time ◽  
Randomized Control ◽  
Apparently Healthy

AbstractObjectivesThe improvement in the/reaction time is important, as it is an indicator of cognitive function. Therefore, there is a need, especially for adolescents in the form of techniques or courses that can improve the reaction time. Yoga was found to cause a better improvement in the health of the individuals. The present study intended to show the effects of Bhramari pranayama (Bhr.P) on reaction time in the healthy adolescents.MethodsOf the 730 potential subjects screened, 520 apparently healthy adolescents randomly assigned to either the Bhr.P group (n-260) or control group (n-260). Bhr.P group practiced the bhramari pranayama for 3 days in a week for 6 months. The Auditory Reaction Time (ART) and the Visual Reaction Time (VRT) were assessed before and after Bhr.P pranayama practice.ResultsBhr.P group shows significant shortening of response time in both VRT (from 267.13 ± 52.65 to 249.87 ± 39.41 ms) and ART (from 237.42 ± 48.12 to 227.91 ± 34.60 ms) after 6 months of Bhr.P practice. In control group subjects, no such significant changes were found (p > 0.05).ConclusionsShortening of RT implies an improvement in the information processing and reflexes. This beneficial effect of Bhr.P on reaction time can be used for improving cognitive function in the adolescents for their academic performances.

scholarly journals AUDITORY REACTION TIME MEASUREMENT WITH OBSERVER-BASED PSYCHOPHYSICAL PROCEDURE

2021 ◽  
Vol 5 (6) ◽  
Author(s):  
Yasam Yildirim Baskurt ◽  
Gunay Kirkim
Keyword(s):  
Reaction Time ◽  
Behavioral Response ◽  
Simple Reaction Time ◽  
Normal Hearing ◽  
Time Measurement ◽  
Visual Reaction Time ◽  
Visual Reaction ◽  
Reaction Time Measurement ◽  
Auditory Reaction Time ◽  
The Subject

Reaction is defined as a behavioral response to a stimulus. The stimulus can be auditory or visual. Reaction time (RT) is determined as the time between the onset of the stimulus and response. According to this definition, the auditory RT is the time between the auditory stimulus and the response. Simple reaction time has been the subject of comparison of many different groups with both auditory and visual stimuli. When the simple auditory and visual RT in normal hearing individuals are compared, it has been observed that the auditory RT is faster than visual reaction. Auditory RT in womens's was observed slower than men. In many different studies, average values are 180-200 ms for visual RT and 140-160 ms for auditory RT with normal hearing and sighted individuals. Keywords: Reaction Time, Cochlear Implant, Hearing loss

scholarly journals Evaluation of the cognitive and affective status in hemodialysis patients with chronic renal failure

2018 ◽  
Vol 71 (7-8) ◽  
pp. 222-226
Author(s):  
Aleksandra Jakovljevic ◽  
Vojkan Nestorovic ◽  
Mirjana Dejanovic ◽  
Zoran Bukumiric ◽  
Aleksandar Jakovljevic ◽  
...  
Keyword(s):  
Renal Failure ◽  
Chronic Renal Failure ◽  
Reaction Time ◽  
Beck Depression Inventory ◽  
Simple Reaction Time ◽  
Hemodialysis Patients ◽  
Cognitive Status ◽  
Control Group ◽  
Simple Reaction ◽  
Before And After

Introduction. Hemodialysis patients with chronic renal failure, suffer from affective dysfunction to a variable extent. The aim of our study was to evaluate the cognitive and affective status in patients before and after hemodialysis. Apart from this, the goal of the study was to examine and compare the cognitive status of patients on dialysis in relation to the control group, but also in relation to laboratory parameters. Material and Methods. This research was a prospective study including 30 hemodialysis patients with chronic renal failure treated at the Department of Nephrology of the Health Center in Kosovska Mitrovica. The cognitive status of the subjects was evalueted by determining the simple reaction time to auditory and visual stimuli before and after hemodialysis sessions and using the Mini Mental Status Examination, while the affective status was evalueted by using the Beck Depression Inventory. Results. The analysis of the obtained results showed a statistically significantly lower auditory and visual simple reaction times (p = 0.014) after dialysis (p = 0.023). The results have confirmed a statistically significantly decreased simple reaction time to visual stimuli (p = 0.001), while a statistical significance (p = 0.137) was not obtained for the auditory stimuli when compared to the control group. The Mini Mental Status Examination and the Beck Depression Inventory did not indicate a significant cognitive status damage or presence of depression. Conclusion. The importance of hemodialysis in the improvement of cognitive function is clearly evident, even though the general state of cognitive status in patients on hemodialysis is lower compared to the healthy population. Evaluation of the cognitive and affective status using simple reaction time, Folstein?s Mini Mental State Examination and the Beck Depression Inventory, should be used on daily basis in hemodialysis patients.

scholarly journals The effect of acute vibration on visual reaction time in fencers

2020 ◽  
Vol 6 (3) ◽  
pp. 517-532
Author(s):  
Sercin Kosova ◽  
Hikmet Gümüş ◽  
Merve Koca Kosova ◽  
Mehmet İsmet Tok
Keyword(s):  
Reaction Time ◽  
Upper Body ◽  
Visual Reaction Time ◽  
Local Vibration ◽  
Vibration Exercise ◽  
Reaction Test ◽  
Before And After ◽  
Visual Reaction ◽  
Time Test ◽  
Reaction Time Test

The purpose of this study is to determine the effect of an acute local vibration exercise on the visual reaction time of a fencer’s upper body extremities. Twenty-six male fencers between the ages of 15 and 23 (mean age, 17.38 ± 2.13 years, height: 173.6±9.1 cm, body mass: 70.2 ±14.1 kg) volunteered for this study. The reaction time test was applied before and after the vibration exercise (applied for 30 seconds in 27 Hz with a 2-mm amplitude). After 25 min. standard warming up, fencers were informed about the test, and three repeated reaction tests were performed to provide familiarization. The fencers started the reaction test in the standard fencing guard position. According to five signals coming at two to five second intervals from the target monitor, the fencers made touché by bending (attacking). The reaction time test had five trials. The average reaction time values pre-vibration, and post-vibration were compared. The visual reaction time measured pre-vibration were significantly longer than those measured post-vibration (p<0.001). Acute local vibration exercise applied to fencers shortened the visual reaction time. Given the fact that vibration can improve RT, the use of vibration in training has the potential to provide an advantage to fencers.

scholarly journals CORRELATION OF GLYCOSYLATED HEMOGLOBIN LEVELS WITH AUDITORY AND VISUAL REACTION TIME IN DIABETICS

2021 ◽  
Vol 17 (3) ◽  
pp. 44-50
Author(s):  
Shweta Patil ◽  
Sangita Phatale ◽  
Basavaraj Malipatil
Keyword(s):  
Reaction Time ◽  
Glycemic Control ◽  
Glycosylated Hemoglobin ◽  
Diabetic Patients ◽  
Visual Reaction Time ◽  
Visual Reaction ◽  
Auditory Reaction Time ◽  
Group 2 ◽  
Hba1c Levels ◽  
Group 1

Relevance. Diabetes mellitus is a group of metabolic disorders wherein hyperglycemia occurs either due to lack of insulin secretion and/or reduced insulin sensitivity of the tissues. One of the commonest complications of diabetes is neuropathy and its severity will depend on how long and how high the hyperglycemia has been prevalent. Chronic hyperglycemia in diabetes affects the peripheral nerves and slows psychomotor responses in persons who do not have proper glycemic control. This decreased psychomotor response because improper glycemic control affects the reaction time in diabetics. Objective: to assess and compare the auditory and visual reaction time in group-1 and group-2 diabetics and to correlate it with glycosylated hemoglobin (HbA1c) levels in both the groups. Methods. The study was conducted on 60 subjects aged between 40-50 years after obtaining the permission of the ethical committee of our institution. The group consisted of 60 well-controlled diabetic patients (HbA1c < 7%) with a history of diabetes for 1-10 years attending the medical OPD of Basaveshwar teaching and general hospital, Gulbarga. Diabetics with HbA1c 5-6% were grouped as group-1 and those with HbA1c 6-7% as group 2. The visual reaction time for a green and red light and auditory reaction time for tone and click sound were measured by using reaction time apparatus 2x4, Anand agencies Pune. HbA1c was done by the micro-column method. Results. The visual and auditory reaction time of diabetics with HbA1c 5-6% was faster as compared to the diabetics with HbA1c 6-7% with P< 0.001 and a statistically significant positive correlation was found between HbA1c levels and the visual and auditory reaction time. Conclusion. Poor glycemic control slows psychomotor responses and thus affects the visual and auditory reaction time.

Detection of cognitive impairment by choice auditory reaction time (ART) and visual reaction time (VRT) s during acute mental stress in young hypertensives: A case control study.

2021 ◽  
Vol 17 ◽  
Author(s):  
Vitthal Khode ◽  
Satish Patil ◽  
Girish Babu ◽  
Komal Ruikar ◽  
Sakshi Patel
Keyword(s):  
Reaction Time ◽  
Cognitive Function ◽  
Mental Stress ◽  
Case Control Study ◽  
Reaction Times ◽  
Psychomotor Speed ◽  
Significant Difference ◽  
Visual Reaction ◽  
Auditory Reaction Time ◽  
Control Study

Background: Acute stress is known to be associated with both negative and positive influences on cognitive performance. Hypertension is one of the risk factors for lowered cognitive performance. Mental stress testing is easier to administer and can be regulated by the investigator. Mental arithmetic, using serial subtraction, is the most widely used method to administer stress. Reaction time (RT) is widely used to assess cognitive domains like attention, execution, and psychomotor speed. Researchers have shown that choice reaction times are delayed in hypertension. It is not known whether acute mental stress improves or deteriorates attention, execution, and psychomotor speed in hypertension. We hypothesized in the present study that acute mental stress deteriorates cognitive function in hypertensives without overt cerebro-vascular disease or other vascular risk factors. Method: After getting medical ethical clearance from our institution, this case-control study was carried out over eight months (January 2017 to September 2017). 60 subjects between the age group of 35 to 55 years were included in the study. They were divided into 2 groups. Group 1 consisted of 30 diagnosed cases of hypertension with at least two years of duration. Group 2 consisted of 30 sex and age-matched controls. MMSE was performed to assess the cognitive function in these groups. Simple (S) and choice (C) auditory reaction time (ART) and visual reaction time (VRT) were measured at rest and acute mental stress in these groups to assess cognitive function. The predictive value of VRTC resting and VRTC during acute mental stress among hypertensives for cognitive dysfunction was calculated by using the receiver operating characteristic (ROC) curve. Results: There was a significant difference between ART and VRT, both simple and choice in hypertensive and non-hypertensive subjects, and these reaction times further increased during mental stress. (P<0.001). VCRT can be a predictor of cognitive dysfunction in hypertensives and during acute mental stress. Conclusion: A significant difference in cognitive functions in hypertensive and non-hypertensive subjects exists, and this further deteriorates with acute mental stress.

scholarly journals Auditory reaction time and visual reaction time in basketball players of Ambajogai Maharashtra

2020 ◽  
Vol 13 (3) ◽  
pp. 30-32
Author(s):  
Vijayalaxmi Vishwanath Gawre ◽  
◽  
Sunita Subhash Dhule ◽  
C V Gore ◽  
S Hundergulle ◽  
...  
Keyword(s):  
Reaction Time ◽  
Visual Reaction Time ◽  
Basketball Players ◽  
Visual Reaction ◽  
Auditory Reaction Time

scholarly journals A STUDY TO EVALUATE THE REACTION TIME IN TENSION TYPE HEADACHE.

2019 ◽  
Vol 3 (4) ◽  
Author(s):  
Dr. Mukta P Bidikar ◽  
Dr. Gayatri Jagtap ◽  
Dr. Rahul Chakor
Keyword(s):  
Reaction Time ◽  
Choice Reaction Time ◽  
Tension Type Headache ◽  
Visual Reaction Time ◽  
Mean Values ◽  
Central Processing ◽  
Visual Reaction ◽  
Auditory Reaction Time ◽  
Type Headache ◽  
Headache Patients

The study evaluated the visual and auditory reaction time (simple and choice) in tension type headache patients and healthy controls. Materials and Methods: Study included 21 Tension type headache (TTH) patients in the age group of 21- 49 years and 21 age and sex matched controls. Simple and choice auditory and visual reaction time was recorded using Medicaid Systems RTM-604. The results were statistically analyzed and were recorded as mean ± standard deviation and Student’s unpaired t-test was applied to check the level of significance. Results: The mean values of simple visual reaction time (VRT) and auditory reaction time (ART) were not significantly different in Tension type headache patients and controls. The visual and auditory choice reaction time was longer in TTH patients as compared to controls although not statistically significant. Conclusion: Cognitive and psychomotor impairment has been reported in headache patients. Our findings also indicate delayed central processing in TTH patients and these findings need to be further validated in larger sample size. Keywords: Simple and choice Reaction time; Tension Type Headache

scholarly journals Auditory and visual reaction time and peripheral field of vision in helmet users

2016 ◽  
Vol 11 (2) ◽  
pp. 43-46
Author(s):  
Abbu Pillai Adhilakshmi ◽  
Uday Kumar Priyadarshini Karthiga ◽  
Nitin Ashok John
Keyword(s):  
Reaction Time ◽  
Pilot Study ◽  
Visual Field ◽  
Peripheral Vision ◽  
Peripheral Visual Field ◽  
Visual Reaction Time ◽  
Field Of Vision ◽  
Visual Reaction ◽  
Auditory Reaction Time ◽  
Two Wheeler

Background: The incidence of fatal accidents are more in two wheeler drivers compared to four wheeler drivers. Head injury is of serious concern when recovery and prognosis of the patients are warranted, helmets are being used for safety purposes by moped, scooters and motorcycle drivers. Although, helmets are designed with cushioning effect to prevent head injuries but there are evidences of increase risk of neck injuries and reduced peripheral vision and hearing in helmet users. A complete full coverage helmets provide about less than 3 percent restrictions in horizontal peripheral visual field compared to rider without helmet. The standard company patented ergonomically designed helmets which does not affect the peripheral vision neither auditory reaction time.Objective: This pilot study aimed to evaluate the peripheral field of vision and auditory and visual reaction time in a hypertensive, diabetic and healthy male and female in order to have a better insight of protective characteristics of helmet in health and disease.Method: This pilot study carried out on age matched male of one healthy, one hypertensive and one diabetic and female subject of one healthy, one hypertensive and one diabetics. The field of vision was assessed by Lister’s perimeter whereas auditory and visual reaction time was recorded with response analyser.Result : Gender difference was not noted in peripheral field of vision but mild difference was found in auditory reaction time for high frequency and visual reaction time for both red and green colour in healthy control. But lateral and downward peripheral visual field was found reduced whereas auditory and visual reaction time was found increased in both hypertensive and diabetic subject in both sexes.Conclusion: Peripheral vision, auditory reaction time and visual reaction time in hypertensive and diabetics may lead to vulnerable accident. Helmet use has proven to reduce extent of injury in motorcyclist and other two wheeler drivers.Bangladesh Soc Physiol. 2016, December; 11(2): 43-46

A comparative study of audio and visual reaction time in obese and non-obese subjects

2021 ◽  
Vol 12 (4) ◽  
pp. 43-47
Author(s):  
Ayesha Munawar ◽  
Abdul Aleem
Keyword(s):  
Reaction Time ◽  
Comparative Study ◽  
Visual Reaction Time ◽  
Anthropometric Parameters ◽  
Yellow Color ◽  
Visual Reaction ◽  
Auditory Reaction Time ◽  
Obese Subjects ◽  
Obese Control ◽  
Audiovisual Stimuli

Background: Reaction time provides indirect index of processing capability of CNS and also a means of determining sensorimotor performance. The present study was undertaken to study and compare audio and visual reaction time in healthy obese subjects with non-obese subjects. Aims and Objectives: This prospective study was undertaken to find out whether obesity in otherwise healthy individuals is associated with any alteration in auditory and visual reaction time. Materials and Methods: The study involved 100 subjects 50 obese (cases) and 50 non-obese (control) of both sexes within age group 18-60 years. The Anthropometric parameters under study are height in meters, weight in kg to calculate BMI. Then we measured auditory reaction time (ART) and visual reaction time (VRT) and compared in 2 groups. This comparative study was carried out in Dr. S.C.G.M.C, Vishnupuri, Nanded. Results: We have found that auditory and visual reaction time was longer in obese subjects than non-obese control. There was a significant increase in (P<0.05) ART to sufficient sound and significant increase in VRT(P<0.001) to yellow color. Conclusion: We conclude that there is evidence of sensory motor slowing and delay in CNS processing in obesity as suggested by increased reaction time to audiovisual stimuli.

Alcohol and Simple Reaction Time in a Vigilance Setting: A Placebo Control Study

1986 ◽  
Vol 63 (2) ◽  
pp. 385-386 ◽  
Author(s):  
Roland Gustafson
Keyword(s):  
Reaction Time ◽  
Simple Reaction Time ◽  
Placebo Control ◽  
Pharmacological Properties ◽  
Acute Effects ◽  
Visual Reaction Time ◽  
Placebo Control Study ◽  
Simple Reaction ◽  
Visual Reaction ◽  
Control Study

The present study tested whether earlier reported effects of alcohol on simple auditory and visual reaction time in a vigilance setting should be attributed to the pharmacological properties of alcohol or to subjects' expectancies as to the acute effects of alcohol. Results indicated that an expectancy interpretation can be excluded.

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