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What is the term used to describe the temporary decrease in the probability of detecting a second target after identifying the first, with a lag of 200-500ms?
Which type of attention is captured by the properties of the stimulus, such as salience?
What is the term for the tendency of healthy people to preferentially attend to the left side of space?
In which type of visual search task is the target distinguished by a single feature, such as color or shape?
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What is the term for the decline in signal detection rate caused by shifting criterion, decline in sensitivity, and attentional lapses?
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Which model of spatial attention can be metaphorically thought of as a spotlight developed to a particular region of space?
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What type of attention involves deliberately focusing attention on a relevant stimulus?
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What was observed in a single cell recording study with Rhesus monkeys regarding responses to attended stimuli compared to unattended stimuli?
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What task demonstrated that valid cues improve detection when the cue target onset asynchrony (CTOA) is <200ms, but inhibit detection when CTOA is >200ms?
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What is the term for an inability to respond to visual stimuli in the contralesional visual field, despite normal vision and motor function?
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What type of attention involves the rapid encoding of summary statistics of a set rather than individual items?
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What was observed in patient P.S. regarding visual stimuli in the contralesional visual field?
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What is the first step in visual processing?
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Where are the signals transmitted to by the LGN in visual processing?
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What is the phenomenon where only 50% of participants realized a change despite the person they were helping having different clothes, height, and voices?
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What did Beanland and Pammer's study reveal about eye movements and Inattentional Blindness (IB)?
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What are the physiological constraints that limit the brain's processing of everything in the environment?
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What percentage of observers failed to notice the unexpected event in Inattentional Blindness (IB) during a difficult task?
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What is the term for the inability of the brain to process all information in the environment due to excessive information?
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What is the term used to describe the decline in signal detection rate caused by shifting criterion, decline in sensitivity, and attentional lapses?
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What does the primary visual cortex (V1) do in the visual processing pathway?
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What is the term for the tendency of healthy people to preferentially attend to the left side of space?
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What is the term for the rapid encoding of summary statistics of a set rather than individual items?
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What type of attention involves deliberately focusing attention on a relevant stimulus?
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What is the term for the inability of the brain to process all information in the environment due to excessive information?
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Where are the signals transmitted to by the LGN in visual processing?
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What percentage of observers failed to notice the unexpected event in Inattentional Blindness (IB) during a difficult task?
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What does the primary visual cortex (V1) do in the visual processing pathway?
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Which type of attention involves deliberately focusing attention on a relevant stimulus?
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What is the term for the decline in signal detection rate caused by shifting criterion, decline in sensitivity, and attentional lapses?
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What is the term for the tendency of healthy people to preferentially attend to the left side of space?
Signup and view all the answers
What is the first step in visual processing?
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In which type of visual search task is the target distinguished by a single feature, such as color or shape?
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What task demonstrated that valid cues improve detection when the cue target onset asynchrony (CTOA) is <200ms, but inhibit detection when CTOA is >200ms?
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What is the term for an inability to respond to visual stimuli in the contralesional visual field, despite normal vision and motor function?
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What is the term for the rapid encoding of summary statistics of a set rather than individual items?
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What is the term for the phenomenon where only 50% of participants realized a change despite the person they were helping having different clothes, height, and voices?
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What type of visual search task distinguishes the target by a single feature, such as color or shape?
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What is the term for the inability to respond to visual stimuli in the contralesional visual field, despite normal vision and motor function?
Signup and view all the answers
What does the primary visual cortex (V1) do in the visual processing pathway?
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Where are the signals transmitted to by the LGN in visual processing?
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What is the term for the decline in signal detection rate caused by shifting criterion, decline in sensitivity, and attentional lapses?
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What was observed in a single cell recording study with Rhesus monkeys regarding responses to attended stimuli compared to unattended stimuli?
Signup and view all the answers
What is the term for the rapid encoding of summary statistics of a set rather than individual items?
Signup and view all the answers
What is the term for the tendency of healthy people to preferentially attend to the left side of space?
Signup and view all the answers
What type of attention is captured by the properties of the stimulus, such as salience?
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What was observed in patient P.S. regarding visual stimuli in the contralesional visual field?
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What was observed in Beanland and Pammer's study regarding eye movements and Inattentional Blindness (IB)?
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Study Notes
Visual Attention: Mechanisms and Phenomena
- Attention is a mechanism to filter large amounts of information to aid perception and action by enhancing selected inputs or suppressing irrelevant inputs.
- Neural evidence of attention was observed in a single cell recording study with Rhesus monkeys, showing larger responses to attended stimuli compared to unattended stimuli in the same location of the receptive field.
- Humans can accurately identify scenes presented for <100ms, despite a single saccade taking ~300ms, indicating rapid encoding of summary statistics of a set rather than individual items.
- Spatial attention can be metaphorically thought of as a spotlight developed to a particular region of space and is associated with different models like the Zoom-lens, overt attention, and covert attention.
- The Posner Cueing Task demonstrated that valid cues improve detection when the cue target onset asynchrony (CTOA) is <200ms, but inhibit detection when CTOA is >200ms, showing "inhibition of return" beginning about 250ms after onset.
- Top-down attention involves deliberately focusing attention on a relevant stimulus, while bottom-up attention is captured by the properties of the stimulus, such as salience.
- Gaze cueing with valid eye gaze cues improves target detection, even when participants know the cues are only valid on 50% of trials, indicating that eye gaze captures attention.
- Attentional blink refers to a temporary decrease in the probability of detecting a second target after identifying the first, with a lag of 200-500ms.
- Patient P.S. demonstrated hemispatial neglect, an inability to respond to visual stimuli in the contralesional visual field, despite normal vision and motor function, with treatments such as prismatic adaptation and rehabilitation available.
- Hemispatial neglect is much more common after right hemisphere strokes, and pseudoneglect is the tendency of healthy people to preferentially attend to the left side of space, with representational pseudoneglect apparent in recall and navigation.
- Visual search tasks can be feature search or conjunction search, and vigilance decrement, a decline in signal detection rate, is caused by shifting criterion, decline in sensitivity, and attentional lapses.
- Recent research suggests that a change in response threshold and attentional lapses are mostly responsible for vigilance decrement.
Visual Attention: Mechanisms and Phenomena
- Attention is a mechanism to filter large amounts of information to aid perception and action by enhancing selected inputs or suppressing irrelevant inputs.
- Neural evidence of attention was observed in a single cell recording study with Rhesus monkeys, showing larger responses to attended stimuli compared to unattended stimuli in the same location of the receptive field.
- Humans can accurately identify scenes presented for <100ms, despite a single saccade taking ~300ms, indicating rapid encoding of summary statistics of a set rather than individual items.
- Spatial attention can be metaphorically thought of as a spotlight developed to a particular region of space and is associated with different models like the Zoom-lens, overt attention, and covert attention.
- The Posner Cueing Task demonstrated that valid cues improve detection when the cue target onset asynchrony (CTOA) is <200ms, but inhibit detection when CTOA is >200ms, showing "inhibition of return" beginning about 250ms after onset.
- Top-down attention involves deliberately focusing attention on a relevant stimulus, while bottom-up attention is captured by the properties of the stimulus, such as salience.
- Gaze cueing with valid eye gaze cues improves target detection, even when participants know the cues are only valid on 50% of trials, indicating that eye gaze captures attention.
- Attentional blink refers to a temporary decrease in the probability of detecting a second target after identifying the first, with a lag of 200-500ms.
- Patient P.S. demonstrated hemispatial neglect, an inability to respond to visual stimuli in the contralesional visual field, despite normal vision and motor function, with treatments such as prismatic adaptation and rehabilitation available.
- Hemispatial neglect is much more common after right hemisphere strokes, and pseudoneglect is the tendency of healthy people to preferentially attend to the left side of space, with representational pseudoneglect apparent in recall and navigation.
- Visual search tasks can be feature search or conjunction search, and vigilance decrement, a decline in signal detection rate, is caused by shifting criterion, decline in sensitivity, and attentional lapses.
- Recent research suggests that a change in response threshold and attentional lapses are mostly responsible for vigilance decrement.
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Description
Test your knowledge of visual attention mechanisms and phenomena with this quiz. Explore topics such as spatial attention, top-down and bottom-up attention, gaze cueing, attentional blink, hemispatial neglect, and visual search tasks. Learn about the neural evidence of attention and the factors influencing vigilance decrement.
