This is a simple memory span task with up to 9 word/picture stimuli, which has a visual/mouse response mode.
Located in battery/mspan/staircase.pbl and battery/mspan/buildup.pbl
The 'buildup' version is non-traditional, and works like the children's game 'Simon', presenting the same stem sequence on each round and adding one element to the end.
There are three versions available. staircase.pbl uses a staircase procedure to identify memory span. buildup.pbl gives the same sequence on each trial, adding one element each time.
upperbound <- 9 ## The longest list length lowerbound <- 3 ## The shortest list length staircasestart <- 4 ## starting point for staircasestart.
gISI <- 1000 ## Inter-stimulus interval in ms gITI <- 1000 ## inter-trial interval. gWait <- 500 ## How long to spend at each word gDoWait <- 0 ## Whether there should be a 'blow-up' of the screen
 Data Output
Data are saved into one of two files, depending on the test selected:
The data columns are:
subnum trial inputcode responsecode correct rt1 rt2 rt3 rt4 rt5 rt6 rt7 rt8 rt9
 To Cite
Mueller, S. T. (2012). PEBL Memory Span Task. Computer software retrieved from http://pebl.sourceforge.net
Croschere, J., Dupey, L., Hilliard, M., Koehn, H., & Mayra, K. (2012). The effects of time of day and practice on cognitive abilities: Forward and backward Corsi block test and digit span. PEBL Technical Report Series [On-line], #2012-03.