Perception and Attention Concepts

A comprehensive set of flashcards covering key vocabulary and concepts related to perception and attention.

Sarah is at a bustling café, trying to study for her exam. Despite the noise and chatter around her, she manages to concentrate solely on the words in her textbook for an hour. What cognitive process is Sarah employing?

This illustrates Selective Attention: The process of focusing on a particular object in the environment for a certain period of time.

When looking at a blurred image, you're able to identify it as a "cat" because you expect to see animals in that context and your brain fills in the missing details based on past experiences. What type of processing is primarily at play here?

This is Top-down processing: Interpretation of incoming data based on prior knowledge and expectations.

You see a corporate logo that uses broken lines to form the shape of a circle. Your brain automatically completes the missing segments, perceiving a full circle. What Gestalt principle is at work?

This is Closure: The mind's tendency to perceive incomplete figures as complete.

In a classroom, students wearing red shirts tend to sit together, while students in blue shirts sit in another cluster. How would a Gestalt psychologist describe why students perceive these groups?

This illustrates Similarity: A principle of grouping where items that are similar are grouped together.

You're looking at a famous illusion where you can either see two faces in profile or a vase, but not both simultaneously. This demonstrates the basic principle that separates an object from its surroundings. What is this perceptual distinction called?

This is Figure and Ground: The perceptual distinction between an object (figure) and its background (ground).

When Dr. Lee performs surgery, he needs to accurately judge the distance of very small instruments within the patient's body. What type of depth cues are essential for him to use for such precise judgments, requiring both eyes?

This requires Binocular Cues: Depth cues that require the use of both eyes.

As you hold your finger closer and closer to your nose, your eyes increasingly turn inward to maintain focus. What binocular cue for depth perception is this action demonstrating?

This demonstrates Convergence: A binocular cue that refers to the inward angle of the eyes when focusing on a close object.

Dr. Smith wears glasses that invert his vision. Initially, he struggles to navigate, but after a few days, his brain adjusts, and he's able to move around almost normally. What phenomenon describes his brain's ability to adjust to this altered sensory input?

This is Perceptual Adaptation: The ability of the brain to adjust to changes in sensory input.

Standing on a long, straight road, you notice that the parallel lines of the road appear to merge in the distant horizon. What monocular depth cue is this an example of?

This is Linear Perspective: A monocular cue for depth perception based on the convergence of parallel lines as they recede into the distance.

You see two identical cars, one parked nearby and another much further down the street. The car further away appears smaller, leading you to judge it as being more distant. What monocular cue are you using for depth perception?

This is Relative Size: A comparative judgment of size based on the distance from the viewer.

Perception

The process through which we interpret sensory information.

At a loud party, you are engrossed in a conversation with a friend. Suddenly, you hear your name mentioned from across the room, even though you weren't actively listening to other conversations. What phenomenon explains your ability to detect your name amidst the noise?

This is the Cocktail Party Effect: The ability to focus on a particular sound while filtering out others in a noisy environment.

Imagine you're presented with an unfamiliar abstract painting. You first notice the individual shapes, colors, and textures, and then, based on these raw sensory inputs, you gradually construct an understanding of the overall image. What kind of perceptual processing are you using?

This is Bottom-up processing: Perception that starts with the sensory input, and builds up to the final perception.

During an experiment, participants were asked to count the number of passes made by players in white shirts. Many failed to notice a person in a gorilla suit walking through the middle of the game. What perceptual phenomenon does this experiment illustrate?

This illustrates Inattentional Blindness: The failure to notice a fully visible but unexpected object because attention was engaged on another task.

Laws of Grouping

Principles that describe how we perceive similar elements as part of the same form.

A painter is creating a landscape and needs to give the illusion of depth on a flat canvas. Which general category of depth cues would the painter primarily rely on to achieve this effect, as they only require one eye to perceive?

The painter would rely on Monocular Cues: Depth cues that can be perceived with just one eye.

Depth Perception

The ability to perceive the world in three dimensions and judge distances.

Even though a door appears to change shape (from a rectangle to a trapezoid) as it opens, you still perceive it as a rectangular door. What allows you to maintain this consistent perception despite changes in the sensory input to your retina?

This is due to Perceptual Constancies: The tendency to perceive objects as unchanging despite changes in sensory input.

In a drawing, a tree is depicted covering part of a building. Your brain automatically assumes the tree is closer to you than the building. What monocular depth cue is being used here?

This uses Interposition: A monocular cue where an object that overlaps another is perceived as closer.

An old movie theater sign has lights that flash in sequence, creating the illusion that a single light is moving along the sign. What is this perception of movement where none exists called?

This is Apparent Movement: The perception of movement where none exists, often seen in animations.

Thinking, Problem Solving, Judgments, and Decision-Making

Cognitive processes involved in acquiring knowledge and determining actions.

When you hear the word "dog," you instantly call to mind a furry, four-legged animal that barks, based on your prior experiences and knowledge. What mental framework helps you organize and interpret this information?

This is a Schema: A mental framework that helps organize and interpret information.

Gestalt Principles

These principles suggest that we perceive objects as part of a greater whole, rather than individual parts.

On a whiteboard, several dots are drawn. If dots are grouped closely together in clusters, you tend to see them as distinct groups rather than individual dots. What Gestalt principle of grouping explains this?

This is Proximity: A principle of grouping that states objects that are close together are perceived as a group.

A video shows a person giving directions to a pedestrian. During a brief interruption, the person giving directions is replaced by a different person, but the pedestrian often doesn't notice the change. What perceptual phenomenon causes this failure to notice a visual change?

This is Change Blindness: A perceptual phenomenon that occurs when a change in a visual stimulus is introduced and the observer does not notice it.

You are expecting to see a rabbit in a picture. When shown an ambiguous image that could be interpreted as either a rabbit or a duck, you are more likely to perceive it as a rabbit. What is this mental predisposition to perceive one thing over another called?

This is a Perceptual Set: A mental predisposition to perceive one thing and not another.

When you look at an object first with your left eye, then your right eye, you notice a slight difference in the image each eye receives, especially for close objects. Your brain uses this difference to calculate depth. What binocular cue is this?

This is Retinal Disparity: A binocular cue for perceiving depth based on the difference in the images seen by the left and right eyes.

A series of still lights on a movie marquee flash on and off in rapid succession, creating the illusion of a single light moving around the sign. What optical illusion describes this perceived movement?

This is the Phi Phenomenon: An optical illusion where stationary objects appear to be moving when presented in rapid succession.

As your friend walks away from you, the image of your friend on your retina gets smaller. However, you still perceive your friend as being the same height, not shrinking. What perceptual constancy allows for this?

This is Size Constancy: The perception that an object maintains the same size, even as its distance from the viewer changes.

You look at a red apple under bright sunlight, and then later under a dim, yellowish artificial light. Even though the light reflecting off the apple changes significantly, you still perceive the apple as being red. What perceptual constancy is at play?

This is Color Constancy: The perception of consistent color in varying illumination.

Driving on a foggy morning, you notice that distant objects appear hazier and less distinct than nearby objects. This difference in clearness helps you judge which objects are closer. What monocular cue for depth perception is this an example of?

This is Relative Clarity: A monocular cue that suggests objects that are clearer are perceived as closer.