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Psychomotor Vigilance Task (RTTT)

867 Words4 Pages

Volunteers were screened by telephone. After screening, the eligible participants and the general practitioner received a medical questionnaire for the verification of the drug usage. Once enrolled in the study, the subjects attended a training day to familiarize them with the experimental procedures. The actual testing day was one week later and included the tests Risk Taking Test Traffic (RTTT), Trailmaking A and B (TMT-A and TMT-B), Digit Symbol Substitution Task (DSST), Reaction test (RT 1,2 and 3), Determination Test (DT) and Psychomotor vigilance task(PVT). Participant’s sleep complaints were evaluated using Dutch versions of the Pittsburgh Sleep Quality Index (PSQI) (Buysse et al. 1989) and the Groningen Sleep Quality Scale (GSQS) …show more content…

24 different traffic situations were displayed to the subjects. The participants were asked to push a button at the moment they would not execute the task of the situation anymore because it became too dangerous. (Hergovich, Arendasy, Sommer, & Bognar, 2007). Trailmaking A and B (TR A and TR B) The TMT is a pen-on-paper test which provide information about selective- and divided attention and executive functions. The test consists of two parts. In part A the participant was instructed to connect 25 numbers as soon as possible in sequential order by drawing a line. Part B should be carried out in the same way as part A. The only difference is that the targets of part B are not only numbers but also letters and should have to be connected in the following way: 1-A-2-B-3-C etc. The primary outcomes of both parts are the time that a participant needed to complete the task and the number of …show more content…

The test measures a combination of stress tolerance, divided attention, mental flexibility and reaction time. This was done by providing the participant a number of stimuli on which they had to react in different ways. These stimuli consisted of colored spots, auditory signals and foot signals. The speed of the test presenting stimuli was adapted to the reaction time of the participant. Stress was caused by providing stimuli in which the participant can’t give optimal response. The primary outcome is the median reaction time and correct responses. The duration of the test is approximately 4 minutes. Psychomotor vigilance task (PVT) The PVT (Dinges and Powell 1985) is based on a visual RT test. The visual stimulus was a counter which turned on at random intervals between 2 and 10 seconds. The subject was required to respond by pressing a button when the counter turned on. In response to the subject’s button press, the counter display stopped. The main performance parameters that are used are the reaction time and number of lapses (= Response Time ≥500 msec). The test duration is 10

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247 Words | 1 Pages

After the six hour resting period is over, subjects will wake and take a reaction time test on their smartphones (The application consists of tapping the screen as soon as possible after its color changes. The reaction is recorded in seconds.) three times and record their data. 4. The resting period will then resume.

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This subtest contains 15 questions where we check for the subject’s long term memory and that recalls information about the specific events or situations. The questions may be given orally or in writing. Each correct response will get a score of 2 and 0 for incorrect response. A total of 30 for this subtest. Working memory: This subtest contains a total of 30 items which include 15 for Digit forward task and 15 for Digit backward task.

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Injuries in the places where you will be measuring will affect the reaction time for example if you have a knee injury such as Patellofemoral Pain Syndrome that will affect the reaction time because the test in conducted near the patella and you may have no reaction or slow reaction due to pain or bone rubbing. Some other factors are that for a voluntary reaction it takes longer for the brain to process the information and act upon it. If there is a distraction, then the reaction time would be slower and another impact would be that if there is an interception by other things or other electronic devices they may interfere with the

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1103 Words | 5 Pages

What I mean by that is, as excepted with an increase in secondary task in condition four my average was the highest meaning it took me the longest because my attentional demands had changed. A result I was not excepting was getting the same average for condition one and three. As stated earlier my trails in condition three were all over the place. It would be interesting to redo condition three and see if my times would still be all over the place or would be different. Also, comparing condition three results with the other students in my class and see if they had a similar experience.

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155 Words | 1 Pages

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1939 Words | 8 Pages

Although the accuracy was part of the measurement, the data analyzed only includes reaction time. Therefore, the similar average reaction time between male and female could be due to the difference in accuracy. For example, fast reaction time could have easily been achieved by continuously pressing the same response for every trail. Consequently, the reaction time would be as fast, but the accuracy would be very low. However the finding will not have reflected this important factor.

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1221 Words | 5 Pages

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In the viewpoint of perceptual load theory, stimulus differences happen when the stimulus has high or low perceptual load. The perceptual load discusses complications of the physical stimuli, especially the distractor stimuli, for example, a right-angled symbol surrounded by a rounded symbol is when there is a perceptual load which is low and when there is a right-angled symbol enclosed by heaps of dissimilar symbols this is high perceptual load. Because of the supposed inadequate volume of noticeable materials, in high perceptual loaded studies the aim of noticeable materials is worn out earlier thus enabling to react to the goal quicker in contrast to a lower loaded perceptual

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1134 Words | 5 Pages

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730 Words | 3 Pages

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1055 Words | 5 Pages

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