The Impact of Distraction on Short-Term Memory Inga Chivitchian California State University, Northridge
Previous Research: Recall seven digits either in silence, irrelevant speech, vocal music, or instrumental music. Participants were able to recall more digits when recalling in silence, than in any other condition Alley & Greene, 2008
Previous Research University undergraduates studied twenty lists in backgrounds of similar onset words, rhyming words, dissimilar words or in silence No significant difference between any of the conditions, other than the silence condition, in which students recalled the most amount of words Baddeley, & Salame, 1982
Hypothesis Distraction decreases short-term memory.
Demographics
Demographics 20 CSUN students in PSYCH 321- Lab 2 course (4 Males and 16 Females)
Demographics Participants were between the ages of 20 and 26 M= 22.20 SD= 1.795
Materials PowerPoint 12 random words -Computer, Sweater, Building, Protein, Snowflake, Alcohol, Telephone, Change, Sleep, Paper, Arm, Gold. A sheet of paper for the demographics (age, gender, ethnicity) and the recalled words.
Materials Image by Salvador Dali called “Persistence of Memory”
Materials A song, by a band Hella called “Brown Metal” http://youtu.be/ujofwGp2B9E
Procedure Participants randomly assigned to two groups. Control Group: 12 words presented on PowerPoint in silence. Experimental Group: 12 words presented with visual distraction (image in the background) and auditory distraction (song playing on speakers).
Results Experimental Group (Distractions) -M = 5.50 -SD = 1.43 Control Group (No Distractions) -M = 3.9 -SD = 1.10
Results t(18) = 2.799, p = .174. The results failed to support our hypothesis and are not in agreement with previous research.
Limitations Order and choice of words Image choice Song choice The order of groups
Future Direction Better choice of words Better destruction methods More words Larger N