Sensation and - Sensationand Perception Sensation is the...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Sensation and Perception Sensation is the process by which we detect energy from the environment and encode it as neural signals. Perception involves the selection, organization, and interpretation of sensory information. The task of each sense is to receive stimulus energy, transduce it into neural signals, and send those neural messages to the brain. In vision, light waves are converted into neural impulses by the retina; after being coded, these impulses travel up the optic nerve to the brain's cortex, where they are interpreted. The Young-Helmholtz and opponent-process theories together help explain color vision. In hearing, sound waves are transmitted to the fluid-filled cochlea, where they are converted to neural messages and sent to the brain. The sense of touch is actually four senses--pressure, warmth, cold, and pain--that combine to produce other sensations such as "hot." Taste, a chemical sense, is a composite of sweet, sour, salty, and bitter sensations, and of the aromas that interact with information from the taste buds. Smell, also a chemical sense, does not have basic
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern