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Wk 7, L1 (09/20)

by: Leslea Motley

Wk 7, L1 (09/20) 4100

Leslea Motley
GPA 3.56

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About this Document

Treisman's Attenuation theory, Late selection model, class activity
Cognitive Psychology
Kara Dyckman
Class Notes
cognitive, Psychology, Treisman, attenuation, late, selection, model
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This 2 page Class Notes was uploaded by Leslea Motley on Wednesday September 21, 2016. The Class Notes belongs to 4100 at University of Georgia taught by Kara Dyckman in Fall 2016. Since its upload, it has received 2 views. For similar materials see Cognitive Psychology in Psychology (PSYC) at University of Georgia.

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Date Created: 09/21/16
09.20  Lecture Tuesday,  September   20,  2016 12:35  PM I. Quiz  Review  (Questions  and  Answers  onR   eading  notes  for  09.20) II. Lecture  Slides • Treisman's   -­‐ Attentuation  theory ○ Called  a  "Leaky  Filter"  Model • Late  selection  model ○ We  make  the  selection  or  determination  of  what  we  are  going  to  attend   to  after  we  know  what  everyone  else  is  doing/saying ○ Think  about  this  in  terms  of  two  messages  coming  into  separate  ears,  this   model  says  that  we  receive  all  info,  process  it  for  meaning,  and  then   decide  which  to  pay  attention  to ○ Selection  occurs  after  meaning ○ Studies  that  exemplify  this  model: ▪ McKay  (1973)  -­‐separate  messages  in  each  ear • Left  ear  hears,  "They  were  throwing  stones  at  the  bank" • Right  hears,  "-­‐-­‐-­‐ -­‐-­‐-­‐ -­‐-­‐-­‐-­‐ -­‐-­‐-­‐ -­‐-­‐-­‐-­‐-­‐-­‐-­‐river"  or  "  -­‐-­‐-­‐ -­‐-­‐-­‐ -­‐-­‐-­‐-­‐ -­‐-­‐-­‐-­‐ money" • Heard  the  words  "bank"  and  either  "river"  or  "money"  at  the   same  time • They  concluded  that  the  word  heard  in  the  unattended  ear   did  influence  the  way  that  the  participant  interpreted  the   sentence.   • They  tested  this  by  asking  the  participants  [after  hearing   these  sentences]  -­‐ test  phase,  "Which  sentence  of  closest  to   the  meaning  of  what  you  heard?"  -­‐ one  sentence  discussed   throwing  stones  at  a  river  bank,  and  the  other  discussed  loans   at  a  bank • Concluded  that  biasing  word  affected  participants'  choice • Participants  unaware  of  biasing  words   ○ They  could  not  tell  the  researcher  the  word  they  heard   in  the  unattending  ear. • Researchers  controlled  for  each  ear  in  these  studies.   • Which  model  is  correct ○ There  is  NOT  one  answer  to  this  question.   ○ Sometimes  we  use  early  selection  and  sometimes  late  selection   – most   early  studies  were  done  with  hearing  because  it  was  the  easiest  to   in  the  unattending  ear. • Researchers  controlled  for  each  ear  in  these  studies.   • Which  model  is  correct ○ There  is  NOT  one  answer  to  this  question.   ○ Sometimes  we  use  early  selection  and  sometimes  late  selection   – most   early  studies  were  done  with  hearing  because  it  was  the  easiest  to   control,  but  this  applies  to  all  sensory  systems.   ○ Focus  shifted  to  cognitive  load ▪ Think  about  what  'early  selection'  mean– s  it  means  that  you  decide   to  focus  attention  on  one  thing  and  not  other  things  in  the   environment ▪ 'Late  selection'  means  that  you  take  in  all  info  in  environment  and   then  decide  where  to  focus  attention III.  Activity • Objectives: ○ Demonstrate  how  perception  is  influenced  by  attention ○ Reinforce  the  idea  that  we  cannot  pay  attention  to  everything  in  our   environment ○ Discuss  the  types  of  stimuli  that  are  likely  to  catch  our  attention   (exogenous  attention) • Explore  role  of  attention  and  perception  in  magic  tricks  (each  group  investigates   two  assigned  tricks)


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