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.

Visual Reaction Time in Normal and Handicapped Children

1969 ◽  
Vol 28 (1) ◽  
pp. 157-158
Author(s):  
Andrea Bonsett ◽  
Douglas Ross ◽  
Cornelia Kelly
Keyword(s):  
Reaction Time ◽  
Simple Reaction Time ◽  
Reaction Time Task ◽  
Visual Reaction Time ◽  
Simple Reaction Time Task ◽  
Handicapped Children ◽  
Simple Reaction ◽  
Time Task ◽  
Visual Reaction

Two groups of children, 6 trainable mental retardates and 6 normals, matched for MA, were tested on a simple reaction time task, using onset of a light. Support for the hypothesized RT difference in favor of the normals was obtained. The study confirms data from older retarded groups.

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 Acute effects of waterpipe tobacco smoking: A double-blind, placebo-control study

2011 ◽  
Vol 116 (1-3) ◽  
pp. 102-109 ◽  
Author(s):  
Melissa D. Blank ◽  
Caroline O. Cobb ◽  
Barbara Kilgalen ◽  
Janet Austin ◽  
Michael F. Weaver ◽  
...  
Keyword(s):  
Tobacco Smoking ◽  
Placebo Control ◽  
Acute Effects ◽  
Placebo Control Study ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Waterpipe Tobacco Smoking ◽  
Control Study

scholarly journals Manipulations of the Response-Stimulus Intervals as a Factor Inducing Controlled Amount of Reaction Time Intra-Individual Variability

2021 ◽  
Vol 11 (5) ◽  
pp. 669
Author(s):  
Paweł Krukow ◽  
Małgorzata Plechawska-Wójcik ◽  
Arkadiusz Podkowiński
Keyword(s):  
Reaction Time ◽  
Simple Reaction Time ◽  
Reaction Times ◽  
Reaction Time Task ◽  
Assessment Method ◽  
Individual Variability ◽  
Simple Reaction Time Task ◽  
Stimulus Interval ◽  
Simple Reaction ◽  
Response Stimulus

Aggrandized fluctuations in the series of reaction times (RTs) are a very sensitive marker of neurocognitive disorders present in neuropsychiatric populations, pathological ageing and in patients with acquired brain injury. Even though it was documented that processing inconsistency founds a background of higher-order cognitive functions disturbances, there is a vast heterogeneity regarding types of task used to compute RT-related variability, which impedes determining the relationship between elementary and more complex cognitive processes. Considering the above, our goal was to develop a relatively new assessment method based on a simple reaction time paradigm, conducive to eliciting a controlled range of intra-individual variability. It was hypothesized that performance variability might be induced by manipulation of response-stimulus interval’s length and regularity. In order to verify this hypothesis, a group of 107 healthy students was tested using a series of digitalized tasks and their results were analyzed using parametric and ex-Gaussian statistics of RTs distributional markers. In general, these analyses proved that intra-individual variability might be evoked by a given type of response-stimulus interval manipulation even when it is applied to the simple reaction time task. Collected outcomes were discussed with reference to neuroscientific concepts of attentional resources and functional neural networks.

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