Landry and Bartling (2011)

Researchers

Landry and Bartling

year of study

2011

aim

investigate if articulatory suppression would influence recall of written list of phonologically dissimilar letters in serial recall

population/sample method

34 undergraduate psychology students

Procedure

-participants randomly allocated into two groups

control group- didn't preform articulatory task, saw list for 5 seconds and waited another 5 before answering

experimental group- preformed task with articulatory suppression task

-participants tested individually

-asked to recall list of letters

-10 lists each consisting a series of 7 random letters that didn't sound alike, each series presented one at a time

-had answer sheet with 7 blanks in a row

Articulatory Suppression Task used

experimental group: recall list of letters while saying the numbers one and two at a rate of 2 numbers per second

Results

-ex. group lower scores than control group

-mean % of control group 75% comparted to ex. group 45%

evaluation

-results support expiremental hypothesis

-disruption of phonological loop through articulatory suppression results in less accurate working memory

-articulatory suppression prevents rehearsal of phonological loop because of overload