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Rulers and Reaction Times Abstract The reaction time of ten subjects was measured The subjects were asked to catch a ruler ten times under five different conditions The first condition measured the subjects simple reaction time Each further condition added an additional stimulus and the reaction times were measured There was a clear increase in reaction time with the addition of further stimulus however the expected result of a steady increase in response time with the addition of each condition did not occur The third condition displayed the highest response time where as the final condition displayed the second lowest after condition 1 Assuming that no design problems in the experiment affected the results it cannot be concluded that cognitive processes occur in separate order and do not overlap Given the average reaction time of condition five was lower than condition three some cognitive adaption may have occurred to lower the response time of the subjects or another reason may exist One aspect not covered by the experiment but important to the results was the error factor Pre-guessing the experimenter caused a high rate of error however it lowered the overall results Why measure response times As the world moves forward with technology increasing pressure is placed upon humans to be quicker be smarter and to operate more efficiently As the population increases systems are being put in place to reduce incidences and accidents occurring An example of this is a study conducted by Cameron 1995 examining the influence of specific light colors motor vehicle braking and the reaction time of the drivers to these specific clouds and conditions to avoid rear end collisions Donders subtractive method holds that reaction times can be obtained by subtracting the simple reaction time or subtracting type A from type B etc Cameron 1995 Given this it stands that the more stimulus provided or thought processes required the longer the response time
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