PSY210H5 Lecture Notes - Feature Integration Theory, Neural Adaptation, Habituation
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PSY270 - Jan 21
Conscious VS unconscious processing !
Bottom-up VS Top-down processing !
Serial VS parallel processing !
Attention for location VS object !
Attention is the concentration of mental effort on sensory or mental events !
-overt attention (obviously looking at the thing)!
-covert attention (paying attention to something but not looking at it)!
-the difference between what an observer can tell what the person is looking at !
-endogenous attention (we decide what we are going to pay attention to, voluntarily) !
!- endogenous attention can be overt; can be covert!
-exogenous attention (when something external to us grabs our attention) !
!- exogenous attention can be overt; typically is not covert !
Attention is intimately linked to consciousness (sensory level, physical level) !
-habituation: you no longer are aware of it as you get use to it and no longer pay attention to it !
-dishabituation: you brought attention back to the stimulus !
-sensory adaptation: not dishabituation; also when you stop become aware but at a different
location; our sensory neurons become not aware of it anymore; doesn't matter what you do,
you cannot regain that sense again !
Inattentional blindness: (cognitive level)!
-if we dont pay attention to something we wont be consciously aware of it !
Change blindness: !
-we are often “blind” to changes that occur within our visual ﬁelds !
-we can only pay attention to a limited amount of things !
-we pay attention to what is more important !
Attention is driven by stimulus saliency (potent - strong): !
Attention can be driven by other “important” information and previous knowledge (i.e. task at
Chabris, et al (2011) demonstrated that one “important” event can make us blind to an
unexpected “important” event !
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