Cognitive Approach to behaviour Flashcards
3 types of stages of memory (3)
Sensory memory
Short term memory
Long term memory
Define sensory memory (4)
memory started from sensory inputs
unknown/large capacity
small duration
information not attended to fades + is lost
Define short-term memory (4)
limited capacity - 7-2 items at a time
short duration
acoustic encoding : information in STM primarily based on sound
information fades over time + pushed out by new information
How does the study of H.M show that short-term memory and long-term memory are separate systems
could form short-term memory but couldn’t transfer them to long-term memory
Aim of Glanzer and Cunitz study (2)
whether a delay in recall would affect recency effect
recency affect - things which remain in short-term memory + have not yet been displaced by other information
Participants of study of Glanzer and Cunitz (2)
46 army-enlisted men
repeated measures design
Procedure of Glazner and Cunitz study (6)
participants given 3 five-word practice lists
participants shown 15 fifteen-worded common 1-syllable words lists on a projector
words were shown for 1 second with 2 second intervals between them
list finished –> participants either saw # or number between 0 and 9
- immediate recall - would immediately write down as many words in order
number- delayed recall - would start counting the number until experimenter said to write (either after 10 or 30 seconds)
Strengths of Glanzer and Cunitz study (2)
repeated measures design - participants experience all conditions, results not affected by individual memory ability
lab setting - high level of control variables
Weaknesses of Glanzer and Cunitz study (3)
participants may become tired/improve with practice
lack of ecological validity - word lists do not represent real-life memory tasks
lack of diversity
Define the serial position effect (2)
words at the beginning of a list are rehearsed into long-term memory
words at the end remain in short-term memory
Define the primacy effect
tendency to remember words at the beginning of list as they are rehearsed more + transferred to LTM
Strengths of the multi-store memory model (3)
MSM supported by brain scans - PET scans show activity in prefrontal cortex during STM + hippocampus during LTM
everyday examples align with MSM explanation of rehearsal
supported by research evidence - Glanzer & Cunitz
Aim of Warrington and Shallice (3)
investigate effects of brain of brain damage on KF memory (damage primarily to his left parietal-occipital region of brain)
focused on KF’s short-term + long-term memory capabilities
determine whether SFM was unified system and how it interacts with LTM
Procedure of Warrington and Shallice (3)
verbal memory tests : KF asked to recall sequences of numbers/letter/words (designed to test phonological memory system)
non-verbal memory tests : isolate different components of STM, KF tested on visual + spatial memory
LTM assessment : testing KF’s ability to recall info over longer periods
Results of Warrington and Shallice (3)
reduced capacity for verbal short-term memory
visual short-term memory remained largely unrepaired
long-term memory unaffected