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An example of top-down processing: Even though the second letter in each word is ambiguous, top–down processing allows for easy disambiguation based on the context. These terms are also employed in cognitive sciences including neuroscience, cognitive neuroscience and cognitive psychology to discuss the flow of information in processing. [7]
A context effect is an aspect of cognitive psychology that describes the influence of environmental factors on one's perception of a stimulus. [1] The impact of context effects is considered to be part of top-down design. The concept is supported by the theoretical approach to perception known as constructive perception. Context effects can ...
Top-down reading, is a part of reading science that explains the reader's psycholinguistic strategies in using grammatical and lexical knowledge for comprehension rather than linearly decoding texts. Top-down proteomics, a method for protein analysis; Top-down effects, effects of population density on a resource in a soil food web
Top-down parsing in computer science is a parsing strategy where one first looks at the highest level of the parse tree and works down the parse tree by using the rewriting rules of a formal grammar. [1] LL parsers are a type of parser that uses a top-down parsing strategy.
The second aspect is called top-down processing, also known as goal-driven, endogenous attention, attentional control or executive attention. This aspect of our attentional orienting is under the control of the person who is attending. It is mediated primarily by the frontal cortex and basal ganglia [68] [73] as one of the executive functions.
As a design tool, they aid the programmer in dividing and conquering a large software problem, that is, recursively breaking a problem down into parts that are small enough to be understood by a human brain. The process is called top-down design, or functional decomposition. Programmers use a structure chart to build a program in a manner ...
Moreover, top-down processing plays an important role in change detection because it enables people to resort to background knowledge which then influences perception, which is also common in children. Researchers have conducted a longitudinal study surrounding children's development and the change detection throughout infancy to adulthood. [21]
The divide-and-conquer technique is the basis of efficient algorithms for many problems, such as sorting (e.g., quicksort, merge sort), multiplying large numbers (e.g., the Karatsuba algorithm), finding the closest pair of points, syntactic analysis (e.g., top-down parsers), and computing the discrete Fourier transform . [1]