This is the instrument that I choose during class to write about. It is a small piece of wood that houses four removable metal pieces. They appear to be bronze with a rather sharp pointed tip and hollow inside. There is rubber around which may serve as a grip for the user. The rubber could also be protection from electricity if this is used for shock therapy or testing for touch or pain thresholds. They were not heavy nor light in weight. I'm not exactly sure what these things would be used for, but they seem painful.
The psychology of Perception involves the interaction of our senses and our conscious mind. Perception is involved in every aspect of our lives as we make decisions and judgments based on what we experience. If you study diligently you will leave this course with a broad understanding of sensation and perception. From this general understanding you will be able to further investigate areas of interest by means of literature review and research on specific topics.