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8 Cards in this Set
- Front
- Back
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What is the difference between overt and covert attention? |
Overt attention - Focus corresponds with sensory orientation Covert attention - Focus on stimuli independent of sensory orientation |
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What are the classes of attention? |
Exogenous Attention - 'Reflexive' attention - driven by distinctive environmental stimuli Not conscious Endogenous Attention - 'Voluntary' attention - driven by specific environmetal stimuli aligning with goals/interest Conscious |
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What is the difference between a feature search and a conjunctive search? |
1. Feature search - chosen item varies in only one dimension from background or distracting stimuli 2. Conjunctive search - chosen item contain multiple stimulus feature (banana AND ripe AND large) |
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What is an EEG? |
Electrodes on scalp measure brain's electrical activity during a task. Highest peaks show important features of attention and not just responses to sensory stimuli |
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What are subcortical and cortical structures? |
Subcortical - "deep brain" - Pulvinar and Superior colliculus Cortical structures - cerebral cortex |
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Describe the subcortical regions. |
• Pulvinar
--- Orienting/shiftingattention --- Filtering outirrelevantinformation • Superior colliculus --- Movement ofeyes towardsobject ofattention |
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Describe the cortical regions. |
• Dorsal frontoparietalsystem
--- Conscious control ofattention --- IPS neurons in humansactive in endogenousattention • Right temporoparietalsystem --- Active in exogenousattention --- Helps to reassignattention |
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What is consciousness? |
Being aware of one's own existence, thoughts, emotions, and experiences |
