Got Reflexes?

This reflexes lab tested reaction times, and also how our body reacts to certain stimuli such as a knee-jerk reflex that many of us experience with our physicians. For reflexes, unlike our normal reaction, our brain does not actually process these, instead the reflex arc is a shorter faster process. Reflexes are rapid, and involuntary responses to stimuli.

The first test was a photopupillary Reflex.

Claim: the pupil that was covered during the "dark" period, expands and shifts to adjust to the new light. 

E: My partner did this one twice and both times we did not note any difference besides twitching. 

R: This could be due to the amount of time put in the "dark" period covering one eye, next time we would cover it longer. 

Knee Jerk Reflex(Patellar Reflex)

C: after doing squats the reflex does not work. 

E: The muscles are fatigued and do not slide across each other as easily. 

R: Although it did work, my leg still kicked out pretty far meaning that I was not as fatigued because my muscles slides past each other

Blink Reflex 

C: Our eyes blink even if we know that an object won't hit us. 

E: Blinking protects our eyes which are very sensitive. Humans blink on average 14,400 times each day. 

R: I blinked without question haha, I may have even flinched 

Babe what's your sign? 

C: When dragging a pen across the bottom on ones foot, he or she should flex her toes and move closer together. 

E: Our feet move in response to the nerves, If one did not experience the flexing, then they may have nerve damage. 

R: My partner's feet moved and responded fine proving that she still has the nerves in her feet. Her toes went straight up and flexed. 

How Fast are You?

C: texting will make our reaction times slower and therefore more dangerous to text and drive. 

E: Our brains cannot physically multi-task, but rather switch between task quickly. The more tasks we take, the longer the brain takes to switch.

R: From collected class data both guys and girls had slower reaction times to the ruler drop which proves that texting and driving is infact very dangerous. My time dropped from a .35 reaction to .58 almost a fourth of a second.

Ruler reaction time without texting