Covert and overt attention canbe guided by both low

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Covert and overt attention canbe guided by both low level features and contextual information Types of orienting: The relationship between covert and overt orienting Where we look usually reveals where we are attending. Covert attention precedes overt attention by 2-3 saccades (jumpy eye movements). Modeof orienting: (volitional vs. reflexive) -talking about Attentive and Automatic attention -volitional orienting-attention fromwithin [when we decide we want to pay attention to something] -reflexive orienting (important for survival) Volitional Attention: ex: lookingleft and rightbefore crossing the street -Occurs when we willfully allocate our attention to a taskat hand -Comes fromwithin (concentration) -Slow to engage, butlong lasting Reflexive Attention: ex: Sudden loud noise, drivingand a pedestrian appears -Occurs when an unexpected event captures our attention (coming from external stimulus) -Interrupts ongoing activity -Quick to engage, butshort lasting (first 100ms,only from5-600ms) -alerts us to allow us to know how to deal with the situation The relationship between volitional and reflexive attention Interdependent : Volitional orienting canusually override reflexive orienting (some reflexive cues are too strong to be ignored) -one of the strongest reflexive cues is motion (when something is moving it’s hard to ignore)
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Reflexive orienting canusually interrupt volitional orienting (butnot always) Reflexive and volitional orienting canoccurat the same time. Types and modes of orienting CovertOvertVolitional Covert volitional Ex: monitoring your ex at a partyOvert volitional Ex: looking left and right before crossing the street Reflexive Convert Reflexive Ex: a sudden movement catches your attention in the corner of your eyeOvert reflexive Ex: you quickly look at the moving object Inattention? Mind wandering-measure when we are NOT paying attention Awake: -Inattentive (drowsy,relaxed) -researchers ask people to tell them when they start to go off task,and they look at the brain waves rightbefore goingoff task Lecture 6 January 25, 2011 Lecture 6 January 25, 2011
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  • Winter '08
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  • Consciousness, ex, Donald Broadbent, prosopagnosia, unexpected eventcapturesour attention, attentionworks- thingsthatareenormous,but

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