Chapter 9 Flashcards
(33 cards)
Attention
The process by which certain information is selected for further processing and other information is discarded
Inattentional blindness
A failure to be aware of a visual stimulus because attention is directed away from it
Change blindness
A failure to notice the appearance/disappearance of objects between two alternating images
Salient
Any aspect of a stimulus that, for whatever reason, stands out from the rest
Orienting
The movement of attention from one location to another
Covert orienting
The movement of attention from one location to another without moving the eyes/body
Overt orienting
The movement of attention accompanied by movement of the eyes or body
Inhibition of return
A slowing of reaction time associated with going back to a previously attended location
Exogenous orienting
Attention that is externally guided by a stimulus
Endogenous orienting
Attention is guided by the goals of the perceiver
Visual search
A task of detecting the presence or absence of a specified target object in an array of other distracting objects
Attentional blink
An inability to report a target stimulus if it appears soon after another target stimulus
Lateral intra-parietal area (LIP)
Contains neurons that respond to salient stimuli in the environment and are used to plan eye movements
Saccade
A fast, ballistic movement of the eyes
Salience map
A spatial layout that emphasizes the most behaviorally relevant stimuli in the environment
Frontal eye field (FEF)
Part of the frontal lobes responsible for voluntary movement of the eyes
Hemispatial neglect
A failure to attend to stimuli on the opposite side of space to a brain lesion
Pseudo-neglect
In a non-lesioned brain there is over attention to the left side of space
Phenomenal consciousness
The ‘raw’ feeling of a sensation, the content of awareness
Access consciousness
The ability to report on the content of awareness
Pop-out
The ability to detect an object among distractor objects in situations in which the number of distractors presented is unimportant
Illusory conjunctions
A situation in which visual features of two different objects are incorrectly perceived as being associated with a single object
Early selection
A theory of attention in which information is selected according to perceptual attributes
Late selection
A theory of attention in which all incoming information is processed up to the level of meaning (semantics) before being selected for further processing