Divided attention in a reaction time index of traffic sign perception

Ergonomics ◽  
1981 ◽  
Vol 24 (2) ◽  
pp. 111-124 ◽  
Author(s):  
Frank J. Testin ◽  
Robert E. Dewar1
Keyword(s):  
Reaction Time ◽  
Divided Attention ◽  
Traffic Sign ◽  
Time Index

scholarly journals Cognitive impairment as a function of sleep quality and gender

2019 ◽  
pp. 4
Author(s):  
R. Akhil ◽  
B.P. Nair
Keyword(s):  
Working Memory ◽  
Reaction Time ◽  
Sleep Quality ◽  
Sustained Attention ◽  
Divided Attention ◽  
Poor Sleep ◽  
Poor Sleep Quality ◽  
Vigilance Test ◽  
And Gender ◽  
Good Sleep

Background: The study aims at finding whether there is any significant difference between sub-groups classified on the basis of sleep quality (good sleep quality and poor sleep quality) and gender in the performance of various cognitive functioning tests like Visual N Back Test (N Back 1and N Back 2 test) for working memory, Triad test for divided attention, Digit Vigilance Test for sustained attention and Reaction time test (simple reaction time and choice reaction time). Materials and methods: The sample consisted of 30 participants, both males (N=13) and females (N=17) in the age range between 18 to 30 years, randomly drawn from Thiruvananthapuram and Kollam districts of Kerala. The participants of the study are screened and categorized into two groups of 15 members each on the basis of the scores obtained in the Pittsburgh Sleep Quality Index (PSQI). t-test and two-way ANOVA were performed to test the significance of the hypotheses. Results: The results showed that the participants with poor sleep quality significantly differed from those with good sleep quality and committed more number of errors in the triad test of divided attention and took more time and committed more errors in the completion of the digit vigilance test of sustained attention. Conclusion: A gender advantage favoring females was seen on the test of working memory, test for sustained attention and the test for choice reaction time. An interaction between sleep quality and gender was noticed only on the test of divided attention. It was seen that males with poor sleep quality are more impaired in divided attention tasks than females with poor sleep quality.

SET IN THE SCHIZOPHRENIC AS MEASURED BY A COMPOSITE REACTION TIME INDEX

1940 ◽  
Vol 97 (1) ◽  
pp. 214-225 ◽  
Author(s):  
E. H. RODNICK ◽  
DAVID SHAKOW
Keyword(s):  
Reaction Time ◽  
Time Index

Reaction Time as a Measure of the Effect of Selective Attention

1974 ◽  
Vol 39 (2) ◽  
pp. 755-761
Author(s):  
Eugenie Walsh Flaherty ◽  
Stanley Coren
Keyword(s):  
Reaction Time ◽  
Selective Attention ◽  
Divided Attention ◽  
Stimulus Type ◽  
Dichotic Listening ◽  
Reaction Times ◽  
Attention Condition ◽  
Attentional Condition ◽  
Processing Component ◽  
Tonal Stimuli

In a dichotic-listening paradigm, reaction time was used to monitor the effect of selective attention for 8 Ss. Reaction times were longer for targets in the non-attended channel, but there was no difference between the performance in the attended channel and a divided attention condition which may be interpreted as evidence for attenuation of the unattended channel. For all conditions the reaction time for semantic stimuli is longer than that for tonal stimuli, and there is an interaction between stimulus type and attentional condition which may indicate a stimulus-processing component in selective attention.

scholarly journals How Is Attention in Soldiers Affected by Carrying Combat Equipment?

2021 ◽  
Author(s):  
EVA ORANTES-GONZÁLEZ ◽  
JOSE HEREDIA-JIMENEZ
Keyword(s):  
Reaction Time ◽  
Stress Tolerance ◽  
Divided Attention ◽  
Load Carriage ◽  
Moderate Intensity ◽  
Load Control ◽  
Common Task ◽  
Before And After ◽  
Attention Performance ◽  
Background Load

Abstract Background: Load carriage is a common task in military contexts. This study analysed the influence of carrying different equipment during an obstacle course on perception and attention performance in soldiers belonging to the Spanish infantry. Methods: Forty-six soldiers were evaluated before and after having completed a 1-km obstacle course carrying the combat equipment and carrying no additional load (control). The determination test was used to measure the stress tolerance and reaction abilities, while the divided attention test measured the alertness, vigilance and divided attention. Results: A significant decrease was observed in the reaction time after the course compared to the pre-course in the control and combat conditions. In contrast, the correct and incorrect responses and number of reactions increased from the pre to post-obstacle test in the control and combat conditions. Conclusion: Soldiers improved their arousal after having completed a moderate intensity obstacle test, answering more quickly than on a pre-obstacle test.

The peripheral perception and its relation with backline and front row players for Sulaimani handball adolescent

2021 ◽  
Vol 20 (1) ◽  
pp. 0100
Author(s):  
ئاوات احمد فقي
Keyword(s):  
Reaction Time ◽  
Divided Attention ◽  
Training Session ◽  
Research Problem ◽  
Survey Method ◽  
Emotional Maturity ◽  
Correlation Relationship ◽  
Field Of Vision ◽  
Perceptual Assessment ◽  
Descriptive Method

  Perception is one of the mental processes, which plays an important role in the sport aspects. Therefore, it is one of the basic requirements for improving performance in various sports. The importance of this study is that, handball players should be attempt in such peripheral perception test in order to develop player’s performance and achieve a high altitude.As a researcher I thought that in the training session here is a lack of using scientific laboratories to evaluate the elevation of the player that would be guidance for coaches to maintain their training plan.Aim of the study:-To determine the amount of perception of the players, also the comparison of perception between the players of the back and front lines of the players of the participants.Method of the study:-Used descriptive method in the survey method appropriate to the research problem. the results of the perceptual assessment, through which the research objectives and hypotheses were achieved, and the researcher concluded that the research sample has (a field of vision, focus power, divided attention, reaction time, and emotional maturity) were approved, as there are Moral correlation relationship between the different playing positions and the perceptual variables (field of vision, concentration force, divided attention, reaction time, and emotional maturity).

Reaction Time as an Index of Traffic Sign Perception

1976 ◽  
Vol 18 (4) ◽  
pp. 381-391 ◽  
Author(s):  
Robert E. Dewar ◽  
Jerry G. Ells ◽  
Glen Mundy
Keyword(s):  
Reaction Time ◽  
Reaction Times ◽  
Reaction Time Data ◽  
Time Data ◽  
Identification Task ◽  
Traffic Sign ◽  
The Road ◽  
Visual Distraction ◽  
Correlational Data ◽  
On The Road

Verbal reaction times to identify and to classify 20 traffic sign messages were measured under three conditions-sign alone, sign plus visual loading task, and sign plus visual loading task plus visual distraction. Similar trends were found in the three experiments: reaction times were smaller for the classification task than for the identification task, smaller for warning than for regulatory signs, and smaller for verbal than for symbolic messages. Comparison of these reaction time data with on-the-road measures of legibility distance revealed significant correlations. The correlational data add credibility to laboratory measures of reaction times as valid indices of traffic sign perception.

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