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5 factors affecting rate of reaction
5 factors affecting rate of reaction
5 factors affecting rate of reaction
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Reaction time is a key component to staying safe while driving, or even walking. The data from this experiment tells us that peripheral vision causes us to have the slowest reaction time. For example, the average place I caught the ruler when it was in my peripheral vision was at 24.12 cm. During the peripheral trials, I didn’t catch the ruler two out of the three times, that being the only distraction where I didn’t catch the ruler. The next slowest reaction time measured at 16.45 cm (conversation distraction) which is 7.67 cm less than peripheral vision. That’s more than the range between the fastest reaction time and the second slowest reaction time at 4.9 cm (fatigue)! You can clearly tell that peripheral vision is an outlier in this experiment. From this data we can see that if something is just inside our peripheral vision, we have a slower reaction time than the other distractions. Personally, I think I didn’t do that well with the peripheral vision factor because I don’t have to …show more content…
For example, when we are driving we not only have to look at the car in front of us, we have to look at the cars on the sides of us in our peripheral vision. If one of those cars in our peripheral vision jerks out, we need to have a fast reaction time. Having strong peripheral vision also allows us to do better in sports and causes less injuries. There are many factors that influence reaction time that we did not explore in class. Measuring data for this experiment took two classes on two separate days which may have skewed the data. For example, did I get the same amount of sleep on both days? This might have influenced my reaction time because if I didn’t get the same amount of sleep on one of the days, my reaction time might have been slower. From this experiment, we can pull out other questions to answer. For example, how does the amount of sleep you get influence reaction time? How strong is your peripheral
Although many see it as a disadvantage, cross hand-eye dominance may also be advantageous in the sports realm. As described above, cross dominance has been proved to increase success in certain sports like baseball and basketball. There have been multiple experiments that have tested the effects of cross hand-eye dominance on the percentage of free throws a person can make. Most people have hypothesized that the people who are cross hand-eye dominant have a greater chance of making their free throws. This is because when you shoot a free throw people usually shoot at face level which may block the eye on the same side of the shooting hand. Now if you are cross hand-eye dominant, you would not face this problem because the side of your body
Sensory signals relating information about our physical movements, as well as information regarding external object motion, are required in order to preserve a stable and accurate view of the world, and estimate external motion. Space constancy is the visual system’s ability to maintain a view of the outside world that does not jump about and move with an eye movement (Deubel, Bridgeman, & Schneider, 1998; Stark & Bridgeman, 1983). A simple way of achieving this is to add the velocity estimates that are derived from afferent and efferent motion signals. The sum of these estimates would result in head-centred motion. For instance, the image on the retina of stationary objects in the world would gain a motion opposite and equal to any eye movement. As suggested above, reafferent retinal motion should provide a velocity estimate of similar magnitude to the efferent estimates of eye movement. If these two estimates are equal to one another, but have opposite sign, then their sum would correctly suggest null motion.
Rossetti, Y., Rode G., Pisella, L., Farne, A., Li, L., Boisson, D., & Perenin, M.-T. (1998). Prism Adaptation to a rightward optical deviation rehabilitates left hemispatial neglect. Nature, 166-168.
Vision plays a huge role in the lives of non-human primates. Non-human primates have exceptional binocular vision, due to forward-facing eyes with overlapping visual fields (Prescott). This binocular stereoscopic color vision allows primates to see the world in terms of height, width, and depth, also known as three-dimensional vision (Haviland et al. 2010). Highly developed vision allows the later arboreal primates to judge depth, distance, and location when moving at speed from branch to branch (Haviland et al. 2010). This bino...
The effects of perceptual load on the occurrence of inattentional blindness were demonstrated clearly by experiment. In an experiment conducted by Finch and Lavie in 2007, participants were given identical series of central cross-targets with two arms of clearly different color (blue and green) and slightly different length. Participants were split in two groups, one performing an easy task (low load condition) and the other a harder task (high load condition). The group performing the easiest task only had to make color discrimination between the tw...
Every day before sleeping, I record the exact time and collect them to show the effectiveness of certain methods. This experiment could be divided into 3 steps:
"Sleep Drive and Your Body Clock." Body Clock & Sleep 2. N.p., n.d. Web. 27 May 2014. .
As with the mental map experiments, the fact that reaction time depends directly on the degree of rotation has been taken as evidence that we solve the...
According to Madden (2001), “processing speed is a fundamental property of the central nervous system.” However, what if one gender’s brain processing results in an advantage over the other because of better reaction times? Current studies show contradictory findings when reporting gender differences on reaction time tasks (Adam et al., 1999; Calvo, 2009; Lahtela et al., 1985). Reaction time is referred to as “the amount of time from the onset of the stimulus beginning and responding” (Draper et al., 2010). However, the etiologies of gender differences on reaction tests are more difficult to explain; nevertheless, many researchers have explanations for these gender differences.
Investigating Reaction Times For this investigation we worked in pairs and measured each others reaction times using the ruler method. By this, we dropped the ruler from the subjects hand, and measured how quickly they caught it. The subjects were randomly selected, but the group was large enough to conclude that the results were reliable. The test was carried out a few times on each person, then the results were compared. I belive that the younger subjects will have better reaction times, because their hand/eye co-ordination is better.
gives you a clear picture in your mind as to how the area looks. The
Research has proven that it is difficult to concentrate on driving and talking at the same time. A recent British study showed that talking on a mobile phone while driving was more hazardous than operating a vehicle while under the influence of alcohol. Tests conducted by scientists for UK-based insurance firm, Direct Line, involved 20 subjects using a driving simulator to test reaction times and driving performance and compared this to when drivers had too much to drink. The results showed drivers' reaction times were, on average, 30 percent slower when talking on a handheld mobile phone than when legally drunk - and nearly 50 percent slower than under normal driving conditions. The tests also showed that drivers talking on phones were less able than drunk drivers to maintain a constant speed, and they had greater difficulty keeping a safe distance from the car in front.
Sleeping is something that is an essential part of human nature and is a must in order for one to be a functional human being. Sleep is an idea that is accompanied by many wives’ tales, including the idea that one needs seven to eight hours of sleep each night and alcohol helps one fall asleep and sleep more soundly. One myth about sleep is that during sleep, one is in a state of nothingness. In truth, however, it has been discovered that during sleep the brain is active, variations in heartbeat and breathing occur, and the eyes and ears are active throughout the time of sleep. These activities during a person’s sleep are important because they help that person be more aware, awake, and alert during sleep.
The main distraction of driving is cell phones. Most adults and teens will engage in texting and driving. Due to the major issue of texting and driving many campaigns have been launched, one being launched by AT&T “when it comes to texting and driving, it can wait.” This campaign has many drivers take the pledge to no longer use their phone when driving, there is an available app that will send out automatic messages to anybody that sends a while the individual is driving. When someone is driving at the rate of 55 miles per hour for only 4.6 seconds, it will equal the length of a football field, 100 yards. So, even stopping full vision from the road for a few seconds will still risk serious danger. Another cause of distracted driving is being exhausted or tired, doing so will cause a much slower reaction time. The slower reaction time causes many of the accidents that happen when people are tired. Another possibility is falling asleep behind the wheel even for a few seconds you could drift, or swerv into another lane and hit another car causing a major or fatal car accident. When taking driving classes, the students within the class will hear the saying “stay alert, stay alive.” The final major distraction of driving is eating and drinking. One of the problems of eating and drinking while driving is that it causes both a visual and manual distraction. When removing your eyes from the road many dangers will be
In 2012, 3,328 people were killed in crashes involving a distracted driver by cellphone, compared to 3,360 in 2011. An additional, 421,000 people were injured in motor vehicle crashes involving a distracted driver in 2012, a 9% increase from the 387,000 people injured in 2011. 31% of U.S. drivers ages 18-64 reported that they had read or sent text messages or email messages while driving at least once within the 30 days before they were surveyed (Textinganddrivingsafety Ass). People always think that accident will happen for others due to lack of driving skills or high speed. People who text and drive think that they have the ability to text and handle the car at the same time but they are not actually aware of their ability and the human perception which can be changed by distractions such as cellphones. The human-brain perception time; is how long the driver takes to see the hazard and the brain to require an immediate reaction to avoid the danger. This perception time can be as long as 0.3 to 0.5 second. When the eyes see the hazard and brain realizes the danger then the human reaction happens. Reaction time can vary from 0.3 to 0.7 second. Human perception and reaction times can be effected by factors like alcohol, drugs and especially cellphones. A perception and reaction time can go up to 3 or 4 seconds while someone is texting or calling. 4 seconds at 60