PSYCH 2H03 Lecture 6: Attention
9 Mar 2017
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Document Summary
Attention: we have all experienced distraction, some people suffer from attention de cit hyperactive disorder (add) or attention de cit hyperactivity disorder (adhd, a more extreme disorder is unilateral neglect syndrome. Selective attention refers to the skill through which one focuses on one input or one task while ignoring other stimuli. Shadowing (repeating audio track: dichotic listening: different messages to each ear. Somewhat the effects of attention are so strong that we fail to see stimuli that are directly in front of our eyes. Cocktail party effect: other conversations tuned out, unattended channel can be noticed. Inattention blindness is the failure to notice the existence of an unexpected item. Change blindness is the failure to notice an obvious change. Selection depends on resources: complex stimuli involve more effort, leading to early selection, easy stimuli involve less effort, leading to late selection, posner and snyder (1975) found two kinds of priming related to attention. Stimulus based/repetition priming does not involve effort.
