Visual Attention Flashcards
Do we consciously perceive everything that stimulates our sensory receptors?
Nope, conscious awareness of each of those stimuli would completely overload our system
What happens when you pay attention to one part of the visual field?
You neglect the other parts
What two factors influence attention?
External/exogenous influences and internal/endogenous influences
What does overt attention require?
Movement of the eyes
What does covert attention mean?
You’re paying attention to something without actually moving your eyes towards it
Which kinds of neurons are important for voluntary movements of attention?
Cortical neurons
What is important for reflexive movements of attention?
The superior colliculus
What does facilitation mean?
When attention is directed to a location and a target appears SHORTLY afterward, the RT to respond to the target is less when the target appears where attention was being directed
What does inhibition of return mean?
When attention is directed to a location and a target appears after a LONG DELAY, the RT to respond to the target is longer when the target appears where attention was being directed
Stronger inhibition of return is associated with better performance of which ability?
Driving performance
Which mechanism of attention does inhibition of return demonstrate: voluntary or reflexive?
A reflexive mechanism of attention
