Description
Part 1
For this Discussion, consider differences between bottom-up and top-down perception.
With these thoughts in mind:
Post a brief explanation of the active nature of perception. Then explain two differences between bottom-up and top-down perception. Finally, provide one example of how everyday experience would be altered if bottom-up perception were impaired, as well as one example of how everyday experience would be altered if top-down perception were impaired. (500 words or more)
Be sure to support your postings and responses with specific references to the Learning Resources.
Part 2
In this Discussion, think about theories of attention as well as cultural and social variables. Consider the relationship between all of these factors and cognition.
With these thoughts in mind:
Post a brief comparison of one early theory of attention to the Guided Search theory of attention. Then describe how these theories apply to visual search. Finally, describe one cultural and one social variable that might influence attention and explain how. (500 words or more)
Be sure to support your postings and responses with specific references to the Learning Resources.
Readings
- de la Rosa, S., Choudhery, R. N., & Chatziastros, A. (2011). Visual object detection, categorization, and identification tasks are associated with different time courses and sensitivities. Human Perception and Performance, 37(1), 38–47.
Retrieved from the Walden Library databases. - DeGloma, T., & Friedman, A. (2005). Thinking with socio-mental filters: Exploring the social structuring of attention and significance. Conference Papers––American Sociological Association, 1–24.
Retrieved from the Walden Library databases. - Proulx, M. J. (2007). Bottom-up guidance in visual search for conjunctions. Journal of Experimental Psychology: Human Perception and Performance, 33(1), 48–56.
Retrieved from the Walden Library databases. - Wolfe, J. M., & Horowitz, T. S. (2004). What attributes guide the deployment of visual attention and how do they do it? Nature Reviews Neuroscience, 5(6), 495–501.
Retrieved from the Walden Library databases.
- Geisler, W. S. (2008). Visual perception and the statistical properties of natural scenes. Annual Review of Psychology, 59, 167–192.
Geisler, W. S. Visual Perception and the Statistical Properties of Natural Sciences. Annual Review of Psychology. Copyright 2007 Annual Reviews, Inc. Used with permission from Annual Reviews, Inc. via the Copyright Clearance Center.
- Peissig, J. J., & Tarr, M. J. (2007). Visual object recognition: Do we know more now than we did 20 years ago? Annual Review of Psychology, 58, 75–96.
Peissig, J.J., & Tarr, M.J., Visual object recognition: do we know more now than we did 20 years ago? Annual Review of Psychology. Copyright 2007 Annual Reviews, Inc. Used with permission from Annual Reviews, Inc. via the Copyright Clearance Center. - Posner, M. I., & Rothbart, M. K. (2007). Research on attention networks as a model for the integration of psychological science. Annual Review of Psychology, 58, 1–23.
Research on attention networks as a model for the integration of psychological science by Posner, M.I., & Rothbart, M.K. in Annual Review of Psychology, 58. Copyright 2008 by Annual Reviews, Inc. Reprinted by permission of Annual Reviews, Inc., via the Copyright Clearance Center.
Explanation & Answer
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Running head: PERCEPTIONS
1
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Running head: PERCEPTIONS
2
Part one
Bottom-up perception the perception process starts from the sensory input which is the
stimulus. In this process, the perception is driven by data. For instance, when observing a flower
in the middle of the garden. The process of sighting the flower and all descriptions concerning that
flower are moved to the visual cortex from the retina inside the brain. The signals move towards
one direction. This process explains that the initial process of perception starts with a stimulus that
works upwards for the representation of the object to be formed in our minds. The suggesting
aspect of this process is that the experience of perception is dependent on sensory stimuli that we
put together by the use of information available in our senses.
For us to generate sense concerning the world. We must consume energy present in the
environment and change it into neural signals. This process is referred to as a sensation. It is the
step the next step of perception which is used to buy our brains to interpret the signals. The bottomup theory was introduced by E.J. Gibson who made effort by approaching how perception operates.
He described perception as what you see is what you get concluding that perception and sensation
are the same. Gibson’s theory ...
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