3. Brain and Neurons I Flashcards
Early Selection Model of Attention
Sensory Input –> Physical Analysis –> (passes through early filter)
Semantic Analysis –> Awareness
(ignores messages that do not reach awareness)
Late Selection Model + Cocktail Party Effect
Sensory Input –> Physical Analysis –>
Semantic Analysis –>
(passes through late filter)
Awareness
Cocktail party effect: phenomenon of hearing distinctive messages that are not being attended.
External Attention
Attention to stimuli in the world
Internal Attention
Our ability to attend to one line of thought as opposed to another or to select one response over another
Overt Attention
Involves directing attention from one place/object to another by moving eyes
Covert Attention
Involves directing attention without moving the eyes
Metaphors for for Selective Attention
Spotlight and Zoom Lens Model
Feature Search
Is it Efficient?
How is RT influenced by set size?
Is it simultaneously processing stimuli?
Search for a target defined by a single attribute, such as a salient color or orientation
Conjunction Search
Is it Efficient?
How is RT influenced by set size?
Is it simultaneously processing stimuli?
Search for a target defined by the presence of two or more attributes.
Binding Problem
The difficulty in perceiving and responding to the second of two target stimuli amid an RSVP stream of distracting stimuli
Illusory Conjunctions
Support the idea that some features are represented independently and must be correctly bound together with Attention
Attentional Blink
The difficulty in perceiving and responding to the second of two target stimuli amid a RSVP stream of distracting stimuli
