Chapter 4 - Chapter 4- Paying Attention selective...

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Chapter 4- Paying Attention selective attention - the processes through which you somehow select one input and tune out the rest divided attention - skill of performing multiple tasks simultaneously Selective listening early attention studies done with shadowing shadowing - a task in which research participants are required to repeat back a verbal input, word for word, as they hear it overall set up known as dichotic listening -Attended channel - the message meant to be shadowed, heard through one side of headphones -Unattended channel - a different message meant to distract the participant, heard through the other side of the headphones cocktail party effect - multiple conversations at a party where you can tune everyone out besides what you’re doing -if someone mentions your name or something familiar in another conversation, your attention will switch to that conversation filter - a hypothetical mechanism that would block potential distracters from further processing -we are able to block certain distracters and promote the processing of desired stimuli inattentional blindness- failure to see caused by inattention (Mack & Rock) -not prepared or not expecting something causes you to not see any change at all -there is no conscious perception without attention our normal ability to see what’s around us, and to make use of what we see, is dramatically diminished when you’re not paying attention attention may not be needed for unconscious perception change blindness - inability to detect changes in scenes you are looking at detectors might need to be primed in order for us to selectively pay attention to certain things over others there are two types of priming 1.stimulus based - occurs when stimulus is presented, observed immediately after the prime 2. expectation based - occurs when you expect a specific stimulus, takes about a half second to develop, has a limited capacity system spatial attention - our ability to focus on a particular position in space, and thus to be better prepared for any stimulus that appears in that position searchlight of attention example -not a consequence of eye movements -priming also ensures we'll remember the stimulus
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-attention searchlight prevents conjunction errors because we focus what shape or color matches which object we are looking at unilateral neglect syndrome - a form of brain damage in parietal cortex -ignore all inputs coming from one side of the body -cant disengage attention from its current focus -focus of attention is object based not space based (red/blue barbell example) the unattended inputs could go through the same process as attended inputs go through but never reach our conscious -attention is selective and handled differently depending on the input when does the selection take place?
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This note was uploaded on 04/08/2008 for the course PSYCH 031 taught by Professor Vecera during the Spring '08 term at University of Iowa.

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Chapter 4 - Chapter 4- Paying Attention selective...

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