18 terms

Ch. 5

Focused Attention
Attending to only one source of information with ignoring other stimuli AKA selective attention
Divided Attention
Focus is on one ore more sources of information AKA multi-tasking
Cocktail Party Problem
The issue of focusing on one conversation at a time when there are lots goign on
Covert Attention
Attention that shifts to a given spatial location in the absence of an eye movement
Zoom Lens Model
Attentional scope is expendable at will
Attentional Spotlight
Attention directed to given region of visual space
Split Attention
Mulitple, non-adjacent spaces/spotlights
Inhibition of Return
Reduced probability of visual attention returning to a previously attended to area
Perceptual Load Theory
Suceptability to distraction increases when task involves low perceptual load and high load on executive control
A disorder of visual attention where stimuli presented to the side opposite the brain damage are undetected
Disorder of visual attention where stimuli prestned to the side opposite the brain dmage is not detected when another stimulus is presented at the same time to the same side as the brain damage
3 Attentional Abilities
Disengagement, Shifting, Engaging
Ventriliquist Illusion
We rely more heavily on vision because the locaiton of environmental events is usually more precisely indicated by vision (Vs. auditory information)
Factors determing dual task performance
Task similarity, task difficulty, practice
Multiple resource theory
similar tasks compete for the same resource and interfere with each other
The finding that brain activation when two tasks are performed together is less than the sum of the brain activation when they are performed seperately
Automatic Processes
unlimited capacity, do not require attention, hard to modify once learned
Instance Theory
Explains automatic processes--obligatory encoding, obligatory retrieval, instance representation, automaticity in a single-step memory retreival