CogSci 1b Final Study Set Exam Q&A 2024

CogSci 1b Final Study Set Exam Q&A 2024 dorsal stream - CORRECT ANSWER-system of interconnected regions of the visual cortex involved in the perception of spatial location, beginning w/ the striate cortex and ending w/ the posterior parietal cortex ventral stream - CORRECT ANSWER-system of interconnected regions of visual cortex involved in the perception of form, beginning with the striate cortex and ending with the inferior temporal cortex Tri-Level Hypothesis(David Marr) - CORRECT ANSWER-mental or artificial informationprocessing events can be evaluated on 3 different levels computational level - CORRECT ANSWER-highest, most abstract level, what does the problem entail, what output is the system trying to get? What's the reason/purpose for the process Ex: The aim in visual processing is object recognition algorithmic level - CORRECT ANSWER-programming level, what informationprocessing steps are being used to solve the problem? implementation level - CORRECT ANSWER-lowest level, where's the hardware being used? How can the representations and algorithms be realized physically? Computer hardware or human brain and neurons What is the first stage in Marr's computational theory of vision? - CORRECT ANSWERAnalysis of the intensity of areas of light and dark on the retina What does the presence of adjacent regions of sharp contrast indicate in Marr's theory? - CORRECT ANSWER-Presence of edges and contours What do edges and contours determine in Marr's theory? - CORRECT ANSWER-Basic features of the object, including line segments and circular shapes What is the result of the first stage in Marr's theory? - CORRECT ANSWER-Raw primal sketch of the image What happens in the second stage of Marr's model? - CORRECT ANSWER-Features in the raw primal sketch that are similar in size and orientation get grouped What is produced in the second stage of Marr's model? - CORRECT ANSWER-A 2.5-D sketch that includes the object's surfaces and layout How is the 2.5-D sketch in Marr's model represented? - CORRECT ANSWER-It is viewer-centered, showing how far each point is from the observer