Which one of the following statements about the gate-control theory is true?
Pain impulses create a gate leading to the brain.
The brain is capable of generating pain on its own.
The gate closes when pain messages go to the brain.
Damage to small nerve fibers lets pain through to the brain.
I am not sure but think it is B
I searched Google under the key words "gate-control theory" to get this information:
Proposed by Ronald Melzack and Patrick Wall, gate control theory suggests that the spinal cord contains a neurological “gate” that either block pain signals or allows them to continue on to the brain. Unlike an actual gate, which opens and closes to allow things to pass through, the "gate" in the spinal cord operates by differentiating between the types of fibers carrying pain signals. Pain signals traveling via small nerve fibers are allowed to pass through, while signals sent by large nerve fibers are blocked. Gate control theory is often used to explain phantom or chronic pain.
This would lead me to choose the last alternative.
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I'm guessing D because it says when large fibers are damage small fibers open the gate allowing pain messages to reach the brain.. but it doesn't mention the word nerve???
D was wrong :(
To determine which statement about the gate-control theory is true, let's analyze the different options:
A) "Pain impulses create a gate leading to the brain."
B) "The brain is capable of generating pain on its own."
C) "The gate closes when pain messages go to the brain."
D) "Damage to small nerve fibers lets pain through to the brain."
The gate-control theory of pain was proposed by Ronald Melzack and Patrick Wall in 1965. According to this theory, pain is not a direct result of pain stimuli, but rather a product of the interactions between different types of nerve fibers and the spinal cord.
A) The statement that "Pain impulses create a gate leading to the brain" is not accurate according to the gate-control theory. The theory suggests that there is a "gate" in the spinal cord that controls the flow of pain signals to the brain, but pain impulses themselves do not create this gate.
B) The statement that "The brain is capable of generating pain on its own" is also incorrect. The gate-control theory does not propose that the brain generates pain independently; rather, it focuses on the modulation and control of pain signals along the neural pathway.
C) On the other hand, the statement that "The gate closes when pain messages go to the brain" aligns with the gate-control theory. According to this theory, the gate can be closed or opened through various mechanisms, including the input of non-painful signals (such as rubbing or massaging the affected area), which can modulate the transmission of pain signals to the brain.
D) Lastly, the statement that "Damage to small nerve fibers lets pain through to the brain" is supported by the gate-control theory. According to the theory, damage to small nerve fibers would reduce their ability to inhibit the transmission of pain signals, resulting in an increased flow of pain signals to the brain.
After analyzing the options, it is evident that option C, "The gate closes when pain messages go to the brain," is the statement that aligns with the gate-control theory.