Landry & Bartlings WMM

psyc

aim

to investigate if articulatory suppression can influence recalling a written list of phonologically dissimilar letters in order

research method

lab experiment

procedure

• Participants looked at a list of letters that they had to recall

• Had to recall the letters while saying the numbers “1” and “2” for articulatory suppression

• Control group was shown the printed list, instructed to wair another 5 seconds then to write the correct orders of the letters.

• 10 lists consisting of 7 letters randomly constructed from F, K, L, M, R, X, and Q due to lack of similar sound

• Both experiments for the control and experimental group were repeated 10 times

strengths

the study was well controlled which means it has a high level of internal validity

limitations

the study is artificial, lacking ecological validity

conclusion

this links to the working memory model as articulatory suppression prevents rehearsal in the phonological loop due to overload of information. If the phonological loop is disrupted, it will lead to a less accurate working memory due to limited capacity