Considering the complexity of the world, it is tempting to think that the human senses are designed to take in
information with as much accuracy as possible. However, the literature points to the fact that sometimes
sensory systems actively distort information. For example, touch receptors stop signaling about the way
clothes press against skin, or the visual system ignores blind spots in vision. In some cases, the distortion of
information is beneficial and allows humans to ignore unimportant details. Sometimes the distorted reports of
sensory systems can be detrimental, as when an amputee suffers constant pain from a limb that is no longer
there. To understand the mind, you have to understand how sensory systems report on the world. Important to
this understanding is the distinction between sensation and perception.
In this Discussion, you will differentiate between sensation and perception. You will describe how pain is
detected and transmitted to the nervous system and the pros and cons of pain perception. You will also
describe the processes involved in pain management through both pharmaceutical and alternative pain
treatments.
To prepare:
Review this week’s Learning Resources in order to be able to differentiate between the terms sensation and
perception as well as to be able to describe the processes involved in detecting and transmitting pain.
Choose a specific pharmaceutical and non-pharmaceutical pain treatment and research the processes through
which those treatments manage pain.
Post a response to the following:
Define, describe, and clearly differentiate between the terms sensation and perception.
Then, considering the sensation and perception of pain:
Describe how pain is detected and the neurotransmitters and receptors involved in transmitting that information
to the central nervous system.
Choose a specific pharmaceutical pain medication and explain how it interferes with this pathway to reduce
and manage pain. Consider the downsides of treating pain via pharmacological methods, such as opioids.
Choose an alternative pain treatment (non-pharmaceutical) and explain how it works to manage pain. What are
some potential pros and cons to this approach?
Finally, propose at least one potential cost and one potential benefit of pain perception.