Ib Biology Hl

Is the neural pathway significantly longer for a visual stimulus or a sound stimulus (or a pressure stimulus)

Data collection and processing

Table 1a: Data collected by John Rha and Arthur Hamilton by dropping ruler for calculation of length of the neural pathways (Visual, Auditory and Sensual) Trial# | Visual | Auditory(Sound) | Sensual(Pressure) | | (cm±0.1cm) | (cm±0.1cm) | (cm±0.1cm) | | John | Arthur | John | Arthur | John | Arthur | 1 | 43.9 | 24.1 | 33.1 | 34.6 | 50.1 | 50.5 | 2 | 73.7 | 45.6 | 66.1 | 49.2 | 29.2 | 75.2 | 3 | 47.4 | 31 | 80.2 | 25.3 | 54.4 | 41 | 4 | 32 | 24.7 | 23.1 | 39.6 | 25.6 | 47.4 | 5 | 23.5 | 29.1 | 32.9 | 35.1 | 26.2 | 30.8 | 6 | 38.6 | 27.6 | 47.6 | 34.7 | 40.6 | 49.5 | 7 | 37.9 | 20.9 | 56 | 21.7 | 41.5 | 40.2 | 8 | 28.2 | 22.7 | 24 | 57 | 29.1 | 62 | 9 | 39.9 | 62 | 43.6 | 87.2 | 30.6 | 35.4 | 10 | 23.6 | 30.5 | 49.3 | 44.4 | 44.2 | 78.2 | 11 | 58.4 | 26.2 | 66.8 | 24.2 | 41.9 | 84.3 | 12 | 40 | 32.7 | 21.1 | 36.1 | 14.2 | 21 | 13 | 55.5 | 20.2 | 61.7 | 15.1 | 61 | 41.3 | 14 | 39.6 | 32.2 | 46.9 | 28.58 | 65 | 24.8 | 15 | 46.1 | 18.1 | 61.7 | 55 | 45.9 | 22.3 |

Table 1b: Calculations of the reaction times the meter stick fell Trial# | Visual | Auditory(Sound) | Sensual(Pressure) | | John | Arthur | John | Arthur | John | Arthur | 1 | 0.299319 | 0.221774 | 0.259906 | 0.26573 | 0.319758 | 0.321032 | 2 | 0.387825 | 0.305059 | 0.367285 | 0.316872 | 0.244114 | 0.391752 | 3 | 0.311022 | 0.251526 | 0.404566 | 0.227228 | 0.333197 | 0.289264 | 4 | 0.255551 | 0.224518 | 0.217124 | 0.284282 | 0.228571 | 0.311022 | 5 | 0.218996 | 0.243696 | 0.259119 | 0.267643 | 0.231234 | 0.250713 | 6 | 0.28067 | 0.237332 | 0.311677 | 0.266113 | 0.287849 | 0.317837 | 7 | 0.278113 | 0.206526 | 0.338062 | 0.210442 | 0.291022 | 0.286428 | 8 | 0.239898 | 0.215236 | 0.221313 | 0.341067 | 0.243696 | 0.355711 | 9 | 0.285357 | 0.355711 | 0.298294 | 0.421852 | 0.249898 | 0.268784 | 10 |