Serendip is an independent site partnering with faculty at multiple colleges and universities around the world. Happy exploring!

Reply to comment

Sharhea's picture

Shanika, Sharhea, LaKesha

We decided to test the relationship between the distance and the response. We think that the distance from the brain, actually makes a difference from when we responded. We measured the Neutral Delay(ND), the Muscle Delay (MD), and the Response Time (RT). First, Sharhea was hit along the arm, from the bottom going up. The table below illustrates when she was looking and when she was not looking at the trigger.

 

T1 T2 T3 ND MD RT  
1.263 1.619 1.694 0.356 0.075 0.431 Sharhea not looking - going up the arm
9.316 9.714 9.774 0.398 0.06 0.458  
14.461 15.105 15.16 0.644 0.055 0.699  
20.191 20.607 20.68 0.416 0.073 0.489  
      0 0 0  
0.235 0.251 0.32 0.016 0.069 0.085 Sharhea looking - going up the arm
2.366 2.435 2.561 0.069 0.126 0.195  
6.005 6.139 6.216 0.134 0.077 0.211  
9.022 9.047 9.117 0.025 0.07 0.095  

 

Then we did Shanika, a set of times on the bottom of her arm and the top of the arm. We also did it for her looking and not looking.

 

0.658 0.849 0.88 0.191 0.031 0.222 Shanika - bottom arm
3.273 3.397 3.407 0.124 0.01 0.134  
7.39 7.497 7.521 0.107 0.024 0.131  
             
11.46 11.594 11.642 0.134 0.048 0.182 Shanika - top arm
14.641 14.755 14.795 0.114 0.04 0.154  
18.037 18.127 18.145 0.09 0.018 0.108  
             
0.913 0.998 1.033 0.085 0.035 0.12 shanika - bottom arm looking
2.69 2.52 2.542 -0.17 0.022 -0.148  
5.498 5.518 5.56 0.02 0.042 0.062  
             
9.211 8.882 8.912 -0.329 0.03 -0.299 shanika - top arm looking
11.456 11.307 11.431 -0.149 0.124 -0.025  
13.476 13.634 13.736 0.158 0.102 0.26  

We ended up with a lot of mixed data. For Shanika, this experiment was a lot of fun. When Shanika was looking, she actually pressed the trigger before we hit her, she anticipated the hit before it actually occured. Sharhea first set of data (looking) actually proved our hypothesis wrong. As we got closer to the brain the time did increase, rather than decrease. Our second hypothesis, we assumed that when we are looking our ND, MD and RT will decreased. It actually happened for myself and Shanika

Reply

To prevent automated spam submissions leave this field empty.
1 + 0 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.