The stream can also capture automatic attention. The sensation and perception of an individual can hence be automatic without requiring the control of person. Therefore it is possible that some people are more sensing and perceiving if they have more active M. stream cells. The p stream is color sensitive and supports accurate motion detection of an object or the stimuli. The combned role of both reduce the time taken for motion detection and accurate and quick identification of the object that is shown
6. Design an experiment to test whether the parvocellular stream is sensitive to motion processing
1) What methods would you use?
The experiment to test the parvocellular stream or P. stream will have twenty participants that will be observed for response to color vision. They will have normal visual acuity and color vision as assessed. Stimuli will be generated by Mat lab software with Psych Toolbox routines to give stimuli to a Sony Trinitron E220 cathode ray tube monitor. The environment of the experiment will be dark and the participants will be half a meter apart from monitor. A cube with 64 squares in color cab be shown moving, as a stimuli, to find participant responses.
2) What do you expect to find?
Since parvocellular neurons color sensitive and can find details of object, I expect that the participants...
The findings presented by Snowden within his study Visual Attention to Color are extremely intriguing when one considers the history of research on M. stream/P stream activity and attentional guidance. As Snowden states in the Discussion section of his article, "the current finding appears to establish conditions under which a purely chromatic signal can automatically attract attention, and thus shows that color vision can play a vital role in the
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