. Author manuscript; available in PMC: 2011 Oct 1.

Published in final edited form as: J Cogn Neurosci. 2011 Jan 24;23(10):2852–2863. doi: 10.1162/jocn.2011.21625

Table 1.

Behavioral Results in Both Experiments

Experiment 1
	Study Condition
Measure	2vis	2aud	4vis	2vis2aud (vis probe)	2vis2aud (aud probe)	2vis2aud (total)
Same	.91(.03)	----	.91(.02)	.82(.03)	.84(.05)	.83(.03)
Changed	96(.02)	----	.95(.03)	.94(.02)	.94(.03)	.94(.02)
k	1.74(.08)	----	3.45(.16)	1.53(.08)	1.56(.13)	3.09(.16)
Experiment 2
	Study Condition
Measure	2vis	2aud	4vis	2vis2aud (vis probe)	2vis2aud (aud probe)	2vis2aud (total)

Same	.94(.02)	.93(.03)	.85(.03)	.93(.03)	.95(.02)	.94(.02)
Changed	.93(.02)	.97(.01)	.88(.03)	.96(.02)	.96(.02)	.96(.01)
k	1.76(.06)	1.79(.07)	2.90(.17)	1.76(.06)	1.81(.06)	3.58(.09)

Note. Same refers to proportion correct on trials in which the probe was found in the studied set; Changed, proportion correct on trials in which the probe was not in the studied set. The k measure of items in working memory (Cowan, 2001) is defined as k=N(Same+Changed−1), where N is the number of items in the tested set (N=2 for the 2vis and the 2aud conditions; N=4 for all other conditions).