A) Pain is a separate sense from touch. List two differences…
A) Pain is a separate sense from touch. List two differences that distinguish how our bodies sense pain vs. touch. (2 pts) B) For pain, list the neurons that are responsible for transmitting pain information from the skin to the somatosensory cortex, including which neuron crosses from one side of the body to the other, and where it crosses. (4 pts) C) For innocuous touch, list the neurons that are responsible for transmitting touch information from the skin to the somatosensory cortex, including which neuron crosses from one side of the body to the other, and where it crosses. (4 pts)
Read DetailsA) For each of the following behavioral methods briefly desc…
A) For each of the following behavioral methods briefly describe what aspect of drug use/abuse each models (2 pts each): 1) Conditioned Place Preference 2) Locomotor Activity 3) Self-Administration B) Choose one of the above behavioral approaches and provide a general description of the method (or alternatively, describe an example of an experiment using one of the methods). (3 pts) C) What was the most surprising piece of information you learned about drug abuse? (1 pt regardless of your answer!)
Read DetailsA) If a person suffers damage to their spinal cord on the RI…
A) If a person suffers damage to their spinal cord on the RIGHT side of the body (and only the right side), would they lose pain sensation from the LEFT side, RIGHT side, or BOTH sides of the body for regions innvervated by nerves that enter the spinal cord at segments below the site of damage? (1 pt) B) What would happen to pain sensation for body areas innvervated by nerves that enter the spinal cord above the site of damage? (1 pt) C) Explain why a painful sensation in your left forearm could be an indication that you are experiencing a heart attack (this is called “referred pain”). (3 pts) D) Define the gate control theory of pain modulation and explain the neuronal mechanism by which this occurs in terms of what happens to pain spinal neurons. (5 pts)
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