Memory - anxiety Flashcards
what is anxiety
- state of emotional and physical arousal
what is the positive effect of anxiety on recall
Yuille and Cutshall (1986)
- interviewed participants after an actual shooting
- accuracy was rated by how many details they could recall
- rated stress levels
- participants with high stress had 88% recall compared to less stressed group
What is the negative effect of anxiety on recall
- weapon focus effect
Johnson and Scott (1976) - participants in a waiting room in a low anxiety condition, heard a normal conversation and a man walked out with a pen
- second condition they heard a heated argument and the man walked out with a bloody knife
- 49% who saw the man with a pen could identify him
- 33% who saw the man with the knife could identify him
what is the inverted U hypotheses
- Yerkes- Dodson law
- performance increase with stress but only to a certain point
what are the strengths of anxiety on eye witness testimony’s
Christianson and Hubinette (1993)
- interviewed 58 witness to robberies in Sweden
- some directly involved ( bank workers) and others indirectly (bystanders)
- direct victims had the best recall
- high anxiety were 75% accurate in recall
what are the limitations of anxiety on eye witness testimony’s
Kerri Pickle (1998)
- used scissors, hand gun, wallet, chicken leg in a hair dressers
- EWT poor in high surprise conditions - handgun and chicken leg
- weapon effect distorts recall due to surprise