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PSYC 230 – Cognitive Psychology Exam 3 Prep (100+ Questions) | Object Perception, Color Vision, Motion, Depth Cues | University of Illinois (UIUC)

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This extensive study resource contains over 100 detailed questions and verified answers for PSYC 230: Cognitive Psychology at the University of Illinois Urbana-Champaign (UIUC), focused on Exam 3 for the 2025/2026 academic year. Designed for high-level exam preparation, the document breaks down key concepts across visual perception, object recognition, color processing, motion detection, and depth cues. It begins with foundational topics such as top-down and bottom-up processing, object and face recognition (including agnosias, geons, and fusiform face area), and progresses to color vision mechanisms including the Trichromatic and Opponent-Process theories, cone types, and cortical pathways (e.g., V4). The document then explores motion perception, including Reichardt detectors, MT/V5, saccades, and motion illusions, as well as monocular and binocular depth cues such as occlusion, stereopsis, horopter, and vergence. Also covered are key illusions (Ponzo, Ebbinghaus, Ames room, moon illusion) and phenomena like binocular rivalry, suppression, and synesthesia. Important neuroscientific studies and experimental paradigms (e.g., Newsome’s monkey experiments, Looser & Wheatley’s animacy research, and Quiroga’s neuron specificity study) are included, making this document both exam-ready and academically rich. This document is ideal for: Undergraduate psychology majors taking PSYC 230 or equivalent cognition/perception courses at UIUC Cognitive neuroscience, vision science, and behavioral science students exploring brain-based perception Pre-med, kinesiology, and neuropsychology students preparing for sensory and perception assessments Learners needing comprehensive and exam-aligned review material in visual and perceptual cognition Keywords: object recognition, perceptual organization, face perception, fusiform face area, prosopagnosia, color vision, trichromatic theory, opponent process theory, V4, motion detection, MT, saccades, smooth pursuit, depth perception, stereopsis, binocular disparity, horopter, visual illusions, ponzo illusion, muller-lyer illusion, size constancy, top-down processing, bottom-up processing, binocular rivalry, cortical achromatopsia, PSYC 230, cognitive psychology, UIUC

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Uploaded on
November 17, 2025
Number of pages
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Written in
2025/2026
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PSYC 230 Exam 3 2025/2026 Exam
Questions with 100% Correct Answers |
Latest Update



object agnosia - 🧠 ANSWER ✔✔deficit in identifying and recognizing

objects


top-down processing - 🧠 ANSWER ✔✔when physical stimuli influences

how we perceive them


bottom-up processing - 🧠 ANSWER ✔✔when our existing knowledge of

objects influences how we perceive them


recognition - 🧠 ANSWER ✔✔ability to match a presented item with an item

in your memory


representation - 🧠 ANSWER ✔✔storage and/or reconstruction of

information in memory when it is not in use

,perceptual organization - 🧠 ANSWER ✔✔process where multiple objects

are grouped, allowing use to identify multiple objects in complex scenes


grouping - 🧠 ANSWER ✔✔process where elements in a figure are brought

together into a common group


segregation - 🧠 ANSWER ✔✔process where two objects are distinguished

as distinct or seperate


figure-ground organization - 🧠 ANSWER ✔✔experience viewers have as to

which part of an image is the figure and which is the background

how does symmetry affect figure-ground organization - 🧠 ANSWER

✔✔images that are symmetrical are more likely to be seen as the figure.


how does convexity affect figure-ground organization - 🧠 ANSWER

✔✔images with convex (outward) borders are more likely to be seen as

figure.


law of good continuation - 🧠 ANSWER ✔✔figures that have smooth edges

are more likely to be seen as continuous than those with sharp angles


law of proximity - 🧠 ANSWER ✔✔elements that are close together tend to

be perceived as a unified group

, law of similarity - 🧠 ANSWER ✔✔elements that are similar to each other

tend to be perceived as a unified group


effect of common region - 🧠 ANSWER ✔✔when random dots are circled

into a group


effect of connectedness - 🧠 ANSWER ✔✔when random dots are connected

by a line


perceptual interpolation - 🧠 ANSWER ✔✔the inferred continuation of

objects even when partially hidden by other objects


perceptual interpolation uses what detectors HELP - 🧠 ANSWER ✔✔V1


edge completion - 🧠 ANSWER ✔✔the perception of a partially hidden edge

as complete


illusory contours - 🧠 ANSWER ✔✔perceptual edges that exist because of

edge completion but are not actually physically present


Y junction - 🧠 ANSWER ✔✔corner


T junction - 🧠 ANSWER ✔✔occlusion




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