* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Stimulus Response Time Lab
Embodied language processing wikipedia , lookup
Caridoid escape reaction wikipedia , lookup
Clinical neurochemistry wikipedia , lookup
Synaptic gating wikipedia , lookup
Psychophysics wikipedia , lookup
Embodied cognitive science wikipedia , lookup
Optogenetics wikipedia , lookup
Neuroplasticity wikipedia , lookup
Central pattern generator wikipedia , lookup
Development of the nervous system wikipedia , lookup
Neural coding wikipedia , lookup
Neuroregeneration wikipedia , lookup
Brain Rules wikipedia , lookup
Sensory substitution wikipedia , lookup
Channelrhodopsin wikipedia , lookup
Premovement neuronal activity wikipedia , lookup
Psychometrics wikipedia , lookup
Nervous system network models wikipedia , lookup
Metastability in the brain wikipedia , lookup
Time perception wikipedia , lookup
Circumventricular organs wikipedia , lookup
Neuropsychopharmacology wikipedia , lookup
Evoked potential wikipedia , lookup
Stimulus (physiology) wikipedia , lookup
Efficient coding hypothesis wikipedia , lookup
Anatomy & Physiology Ms. Buchalski Name ___________________________________________ Date ______________ The Nervous System: Stimulus Response Time Lab Activity Introduction: The human nervous system is composed of the brain and spinal cord (Central Nervous System, CNS) and the nerves which branch out from the CNS, the Peripheral Nervous System (PNS). Sensory neurons of the PNS carry information to the CNS. Signals from the brain are carried to motor neurons (PNS), which carry out responses by muscles. In this lab, you will be comparing the rate at which sensory neurons, working through the brain, can elicit responses via motor neurons. Purpose: To identify differences in the nervous system based on reaction response time Materials: Meter stick Blindfold Partner Procedure: 1. One person in the group will place his/her arm on a flat surface, such as a desk top. The hand should extend over the edge of the desk. 2. The partner will hold the meter stick so that the end of the stick is between the thumb and forefinger. There should be space so that the meter stick can move between the fingers. 3. The person holding the meter stick will drop it without warning and the person with his/her arm on the desk will grab the stick as quickly as possible. This will be done five times for each test situation. 4. The person releasing the stick will record the point on the meter stick that the test subject grabs. This number in centimeters is then recorded in the observation chart. 5. There are three test situations. The first is visual. The test subject will watch and react as soon as the stick is released. The second test is auditory. The test subject is blindfolded and will respond when the tester says now as the meter stick is released. The third is tactile. The test subject is still blindfolded, but this time the tester will touch the person when the stick is released. Observations: Stimulus Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Visual Auditory Tactile Graphing: Upon completion, graph your data on the graph paper provided to you. You should have 3 lines on your graph. Be sure to include a key, title, and labels. Anatomy & Physiology Ms. Buchalski Name ___________________________________________ Date ______________ Conclusion: 1. Which of the 3 scenarios allowed for the fastest response time? Offer an explanation as to why this is so. Were both partners fastest for this scenario? Why might there be a difference? 2. Explain how your body is able to obtain information, process it, and then respond using the correct terms. Use your book or the internet as a guide.