Correlation between temporal response of fMRI and fast reaction time in a language task

2004 ◽  
Vol 22 (4) ◽  
pp. 451-455 ◽  
Author(s):  
Ho-Ling Liu ◽  
Wan-Ting Liao ◽  
Shin-Yi Fang ◽  
Tieh-Chi Chu ◽  
Li Hai Tan
Keyword(s):  
Reaction Time ◽  
Temporal Response ◽  
Fast Reaction ◽  
Fast Reaction Time

scholarly journals Zinc blende versus wurtzite ZnS nanoparticles: control of the phase and optical properties by tetrabutylammonium hydroxide

2014 ◽  
Vol 16 (37) ◽  
pp. 20127-20137 ◽  
Author(s):  
F. A. La Porta ◽  
J. Andrés ◽  
M. S. Li ◽  
J. R. Sambrano ◽  
J. A. Varela ◽  
...  
Keyword(s):  
Optical Properties ◽  
Reaction Time ◽  
Cost Effective ◽  
Phase Control ◽  
Degree Of Crystallinity ◽  
Zns Nanoparticles ◽  
Fast Reaction ◽  
Tetrabutylammonium Hydroxide ◽  
Fast Reaction Time ◽  
Zinc Blende

We demonstrated phase control, mediated by the presence of tetrabutylammonium hydroxide, in the growth of ZnS crystals by using a cost effective MAS method; a very moderate temperature (140 °C) and a very fast reaction time are sufficient to produce nanostructures with a good degree of crystallinity.

scholarly journals Solenoid actuated Five-fingered robotic hand design: evaluating the capability of solenoid actuators in generating basic finger motions

2019 ◽  
Vol 15 (3) ◽  
pp. 1273
Author(s):  
Syed Zainal Abidin Syed Kamarul Bahrin ◽  
Khairul Salleh Mohamed Sahari
Keyword(s):  
Reaction Time ◽  
Emerging Technologies ◽  
Robotic Hand ◽  
Fast Reaction ◽  
Stroke Length ◽  
Fast Reaction Time ◽  
Similar Appearance ◽  
Operational Concept ◽  
Fast Motions ◽  
Human Hands

<span lang="EN-GB">There are numerous robotic hand designs but the five-fingered robotic hand design is the most dexterous robotic hand design due to its similar appearance and motions with the human hands. The fingers' motions are commonly driven by geared motors or other types of emerging technologies. However, the motions are yet to be driven directly by solenoid actuators due to its limited stroke length and also general perceptions of its applications as an actuator. Nevertheless, solenoid actuators are known for their fast reaction time and strong holding force which are useful to generate fast motions and strong grasping actions. To realise this concept, previous research and developments had been done by the authors but the outcome was not convincing enough due to the absence of a working prototype. Therefore, this paper introduced a new solenoid actuated robotic hand design and its prototype. The prototype was then tested and evaluated in accordance to the operational concept where the findings showed that the solenoid actuators were capable of generating basic finger motions</span><span>.</span>

scholarly journals Assessing Cognitive Performance in Badminton Players: A Reproducibility and Validity Study

2017 ◽  
Vol 55 (1) ◽  
pp. 149-159 ◽  
Author(s):  
Tanja van de Water ◽  
Barbara Huijgen ◽  
Irene Faber ◽  
Marije Elferink-Gemser
Keyword(s):  
Reaction Time ◽  
Inhibitory Control ◽  
Concurrent Validity ◽  
Sports Performance ◽  
Fast Reaction ◽  
General Reaction ◽  
Specific Reaction ◽  
National Ranking ◽  
Elite Sports ◽  
Reaction Inhibition

AbstractFast reaction and good inhibitory control are associated with elite sports performance. To evaluate the reproducibility and validity of a newly developed Badminton Reaction Inhibition Test (BRIT), fifteen elite (25 ± 4 years) and nine non-elite (24 ± 4 years) Dutch male badminton players participated in the study. The BRIT measured four components: domain-general reaction time, badminton-specific reaction time, domain-general inhibitory control and badminton-specific inhibitory control. Five participants were retested within three weeks on the badminton-specific components. Reproducibility was acceptable for badminton-specific reaction time (ICC = 0.626, CV = 6%) and for badminton-specific inhibitory control (ICC = 0.317, CV = 13%). Good construct validity was shown for badminton-specific reaction time discriminating between elite and non-elite players (F = 6.650, p < 0.05). Elite players did not outscore non-elite players on domain-general reaction time nor on both components of inhibitory control (p > 0.05). Concurrent validity for domain-general reaction time was good, as it was associated with a national ranking for elite (p = 0.70, p < 0.01) and non-elite (p = 0.70, p < 0.05) players. No relationship was found between the national ranking and badminton-specific reaction time, nor both components of inhibitory control (p > 0.05). In conclusion, reproducibility and validity of inhibitory control assessment was not confirmed, however, the BRIT appears a reproducible and valid measure of reaction time in badminton players. Reaction time measured with the BRIT may provide input for training programs aiming to improve badminton players’ performance.

scholarly journals THE STUDY OF THE AGE-RELATED DYNAMICS OF THE REACTION TIME TO VISUAL STIMULI IN SCHOOLCHILDREN

2018 ◽  
pp. 337
Author(s):  
Milutin Parlić ◽  
Aleksandra Ilić ◽  
Vladimir Jakšić ◽  
Milan Parlić ◽  
Vedrana Makević ◽  
...  
Keyword(s):  
Physical Activity ◽  
Reaction Time ◽  
Simple Reaction Time ◽  
Visual Stimuli ◽  
Moderate Physical Activity ◽  
Older Children ◽  
Fast Reaction ◽  
Basketball Players ◽  
Simple Reaction ◽  
Age Related

A fast reaction to visual stimuli is important for the success of any athlete. A fast reaction time enables a quick response in key situations. We have studied how age, sport engagement, moderate physical activity and lateralization affect the simple reaction time to visual stimuli in schoolchildren between the ages of 9 and 13. The reaction time to visual stimuli was statistically significantly shorter in older children compared to younger ones. The sport club basketball players who had been training and playing basketball for several years had a statistically significantly shorter reaction time to visual stimuli compared to schoolchildren of the same age from a rural environment who did not engage in sports. Moderate physical activity and lateralization did not significantly affect the reaction time values. The simple reaction time to visual stimuli was used in this study to evaluate the speed and explosive abilities of young basketball players. By training certain movements, we managed to improve their reaction time and thus influence the quality of their game. Integrating training of these skills into sport clubs and schools would affect the improvement of basketball performance and the prevention of injury.

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