duration - STM

AO1: Peterson + Peterson (1959) - STM duration
24 students, 8 trials, given consonant syllable + 3 digits. e.g (THX 512)
Recalled after intervals of 3 seconds, had to count backwards
Found: 90% correct after 3secs. 20% correct after 9secs, 2% after 18s.
Therefore, STM short duration of…

less than 18 seconds

AO1: LTM duration
LTM holds memories for indefinite period of time
Ability to retrieve = more challenging with…
LTM memory for info from…
Future events = prospective memory e.g remember appointments

age, past and future events

AO3- Evaluation: Limitation
Artificial research - STM
Memorising consonant syllables doesn't reflect everyday memory tasks. We remember meaningful things. However, sometimes meaningless things e.g phone nums and postcodes
Therefore, research lacks…

ecological validity

AO3 - Evaluation: Strength
Practical applications - LTM can be changed to treat PTSD.
McGaugh (2000)- LTM memories- Interference if recalled.
New memory - first fragile state, then consolidated- more resistant to disruption as time passes to prevent forgetting.
Also opens possibility for therapist to change painful memory.
Therefore, during reconsolidation process, its possible to…

erase painful memories found in PTSD