Daisy  U
Mind Map by , created more than 1 year ago

AS - Level psychology (chapter 2 - memory ) Mind Map on factors affecting eyewitness testimony: anxiety, created by Daisy U on 23/04/2016.

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Daisy  U
Created by Daisy U over 8 years ago
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factors affecting eyewitness testimony: anxietythe effects of anxietyanxiety has stong emotional and physical effects - does this make EWT worse or betteranxiety has a negative effect on recallanxiety creates physiological arousalin the body - prevents use payingattentionso worse recallJohnsons & Scottweapon focus effectprocedureparticipant thought that they weretaking part in a lab experimentlow anxiety conditionheard a calm conversationthen a man walked out with greasy hands holding a penhigh anxiety conditionheard an argument and breaking glassthen a man walked out with a bloody knifefindingslater the participants had to pick out the man form 50 photoslow anxiety had 49% accuracyhigh anxiety had 33% accuracytunnel theoryattention focuses on the weapon ads itis the source of anxietyanxiety has a positive effect on recallfight or flight is triggered - increases alertnessand improves memory - more aware of thesituationprocedurestudy from a real life shootingYuille & Judithshop owner shot a thief dead21 witnesses - 13 agreed to take partinterviews held 4-5 months aftercompared to the original police interviewsaccuracy determined by the number of details reportedasked to report how stressed they were outof 7 and any emotional problemsfindingsvery accurate little changesome were less accurate e.g. colour of shirt, height weightthe participants who reported the highest levels of stresswere most accurate88% rather than 75% of less stressed groupexplaining the contradictory findingsYerkes and DodsonDeffenbacherapplied it to EWTfound that it is accurateevaluationweapon focus effect may not be relevantmay test surprise more than anxietythey focused on the weapon as they were surprisedpickeldid the some but different objects in a hair salonscissors got the least surprise and raw chicken got the mostfield studies sometimes lack controlif they interview long after the eventanything could have happened e.g. post event discussionextraneous variablesless accurate recallthere are ethical issuescreating anxiety could cause physiological harmdoesn't make any difference to the resultsbenefit of the research may outweigh the issuesevaluation +the inverted U explanation is too simplisticanxiety is hard to define and measure accuratelyit has many elements - cognitive, behavioural, emotional, physicalinverted U says only physiological is involveddemand characteristics operate in lab studies of anxietywatch a film (usually a staged crime)participants can guess that they are going to be asked questionsthey are more vigilantDouble click this nodeto edit the textClick and drag this buttonto create a new node