Lamme (2003) Flashcards
Change blindness
When a change is introduced but not perceived or noticed
How to protect against change blindness
- cueing where change will occur
- attention should be placed near the location of change
- cue should be with original stimulus otherwise neural representation will disappear
Attentional models of consciousness
One model says that there is no difference between attended and conscious stimuli and that non-attentional selection mechanisms filter stimulus based on salience or invisible attributes
Another model says that attention selects which conscious stimuli to be reported
Phenomenal vs access awareness
Phenomenal awareness: conscious states of what it is like to be in that state
Access awareness: knowledge able to be used in reasoning and guides speech and action
Iconic vs working memory
Iconic memory: very short and limited retinotopic image of what was just seen
Working memory: less limited form of memory which is able to be used in mental calculations
Are attention, awareness and memory the same?
No, attention is independent of awareness and memory
Endogenous and exogenous attention
Endogenous attention - stimulus properties which make it easier to pay attention to (salience)
Exogenous attention - processes that extract meaning and preactivate appropriate pathways based on current needs
Feedforward sweep
Earliest activation of cells in successive areas of cortical hierarchy
As soon as the sweep has reached an area, it can start recurrent processing with other lower areas of the hierarchy
Effects of backwards masking on conscious perception
Backwards masking renders a stimulus invisible if followed less than 40ms by another
What does a TMS on V5 induce?
A TMS on V5 motion selective area induces motion sensations unless V1 is disrupted beforehand