L5: Memory 1

Question 1

types of sensory memory

Answer 1

sensory memory - retention of effects of sensory stimulation for a brief period of time
persistence of vision - retention of the perception of light e.g. trail of light in a moving sparkler

Question 2

modal model of memory

Answer 2

control processes: active processes that can be controlled by the person
strategies used to make a stimulus more memorable

Question 3

capacity of sensory memory

Answer 3

sperling attempted measuring capacity and duration of sensory memory
- presented array of letters flashing on screen
- ppts asked to report as many as possible

Question 4

variations of sperlings experiment

Answer 4

whole report method - ppts asked to report as many as could be seen (4.5 out of 12)
partial report method - ppts heard tone that told them which row of letters to report (3.3 out of 4)
delayed partial report method - presentation of tone delayed for a fraction of a second after the letters were extinguished (1 out of 4 letters)

Question 5

two components of phonological loop

Answer 5

phonological store - verbal and auditory store
articulary process - rehearsa; to keep info from decaying

Question 6

Capacity of WM

Answer 6

Affected by interference:
- phonological similarity effect: words that sound similar are confused
- articulatory suppression: speaking prevents rehearsing items
- word length effect: short words easier than long

Question 7

role of prefrontal cortex

Answer 7

processing incoming visual and auditory information

Question 8

what is the delayed response task

Answer 8

In such tasks, one presents a bit of information (a sample) to a subject, withdraws that information, waits for a period of time (recall delay), then presents that same bit of information along with a comparison bit and asks the subject to identify (choose) which bit of information was presented previously.

Question 9

patient kf

Answer 9

damaged parietal lobe
impaired stm but functional ltm
able to form and hold new memories