Chapter 4: Attention Flashcards
Attention
focusing on specific features, objects, or locations or on certain thoughts or activities
Selective Attention
the ability to focus on one message and ignore all others
Distraction
occurs when one stimulus infers with attention to or the processing of another stimuli
Divided Attention
the ability to pay attention to, or carry out, two or more difficult tasks simultaneously
Attentional Capture
a rapid shifting of attentions, usually caused by a stimulus such as a loud noise, bright light or sudden movement
Visual Scanning
movement of the eyes from one location or object to another
Filter Model of Attention
model of attention that proposes a falter that lets attended stimuli through and blocks some or all of the unattended stimuli
Dichotic Listening
the procedure of presenting one message to the left ear and a different message to the right ear
Shadowing
the procedure of repeating a message out loud as it is heard, shadowing is commonly used in conjunction with studies of selective attention that use the dichotic listening procedure
Cocktail Party Effect
the ability to focus on one stimulus while filtering out other stimuli, especially at a party where there are a lot of simultaneous conversations
Filter
in Broadbent’s model of attention, the filter identifies the message that is being attended to based on it’s physical characteristics (things like the speaker’s tone of voice, pitch, speed of talking, and accent), and lets only this attended message pass through to the detector in the next stage
Detector
in Broadbent’s model of attention, the detector processes the information from the attended message to determine higher-level characteristics of the message, such as its meaning
Early Selection Model
model of attention that explains selective attention by early filtering out of the unattended message
in Broadbent’s early selection model, the filtering step occurs before the message is analyzed to determine its meaning
Attenuator
in Treisman’s model of selective attention, the attenuator analyzes the incoming message in terms of physical characteristics, language, and meaning
attended messages pass through the attenuator at full strength, and unattended messages pass through with reduced strength
Attentuation Model of Attention
Anne Treisman’s model of selective attention that proposes that selection occurs in two stages; in the first stage, an attenuator analyzes the incoming message and lets through the attended message, and also the unattended message, but at a lower (attenuated) strength
Dictionary Unit
a component of Treisman’s attenuation model of attention
this processing unit contains stored words and thresholds for activating the words
helps explain why we can sometimes hear a familiar word, such as our name, in an unattended
Late Selection Models of Attention
a model of selective attention that proposes that selection of stimuli for final processing does not occur until after the information in the message has been analyzed for meaning
Processing Capacity
the amount of information input that a person can handle, this sets a limit on the person’s ability to process information
Perceptual Load
related to the difficulty of a task, low-load tasks use only a small amount of a person’s processing capacity, high-load tasks use more of the processing capacity
Low-Load Tasks
a task that uses few resources, leaving some capacity to handle other tasks
High-Load Tasks
a task that uses most or all of a person’s resources and so leaves little capacity to handle other tasks
Load Theory of Attention
proposal that the ability to ignore task irrelevant stimuli depends on the load of the task the person is carrying out
high-load tasks result in less distraction
Stroop Effect
an effect originally studied by J.R. Stroop
using a task in which a person is instructed to respond to one aspect of a stimulus, such as the colour of ink that a word is printed in, and ignore another aspect, such as the color that the word names
the Stroop effect refers to the fact that people find this task difficult when, for example, the word “Red” is printed in blue ink
Fixation
in problem solving, people tendency to focus on a specific characteristic of the problem that keeps them from arriving at a solution
in perception and attention, a pausing of the eyes on places of interest while observing a scene
Overt Attention
shifting of attention by moving the eyes
Stimulus Salience
bottom-up factors that determine attention to elements of a scene
examples are color, contrast, and orientation
the meaningfulness of the images, which is a top-down factor, does not contribute to stimulus salience
Saliency Map
map of a scene that indicates the stimulus salience of areas and objects in the scene
Covert Attention
occurs when attention is shifted without moving the eyes
commonly referred to as seeing something “out of the corner of one’s eye”
Precueing
a procedure in which participants are given a cue that will usually help them carry out a subsequent task
this procedure has been used in visual attention experiments in which participants are presented with a cue that tell them where to direct their attention
Same-Object Advantage
occurs when the enhancing effect of attention spreads throughout an object, so that attention to one place on an object results in facilitation of processing at other places on the objects
Attentional Warping
occurs when the map of categories on the brain changes to make more space for categories that are being searched for as a person attends a scene
Automatic Processing
processing that occurs automatically without the person’s intending to do it, and that also uses few cognitive resources, automatic processing is associated with easy or well-practiced tasks
Experience Sampling
a procedure that was developed to answer the question; “what percentage of the time during the day are people engaged in a specific behavior?”
one way this has been achieved is by having people report what they are doing when they receive signals at random times during the day
Mind Wandering
thoughts that come from within a person, often unintentionally, in early research this was called daydreaming
Inattentional Blindness
not noticing something even though it is in clear view, usually caused by failure to pay attention to the object or the place where the object is located
Visual Search
occurs when a person is looking for one stimulus or object among a number of other stimuli or objects
Inattentional Deafness
occurs when inattention causes a person to miss an auditory stimulus
for example, experiments have shown that it is more difficult to detect a tone when engaged in a difficult visual search task
Change Detection
detecting differences between pictures or displays that are presented one after another
Change Blindness
difficulty in detecting changes in similar, but slightly different, scenes that are presented one after another, the changes are often easy to see once attention is directed to them but are usually undetected in the absence of appropriate attention
Continuity Errors
in film, changes that occur from one scene to another that do not match, such as when a character reaches for a croissant in one shot, which turns into a pancake in the next shot
Binding
process by which features such as color, form, motion, and location are combined to create perception of a coherent object