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

Published in final edited form as: Cogn Emot. 2010;24(2):338–356. doi: 10.1080/02699930903381564

Table 1. RT, accuracy, and task-switching costs for Experiment 1.

Task Switching Behavioral Performance

Baseline (No knowledge of Future Incentives)
	Single-Task	Mixed-Task		Mixing Costs (Repeat-Single)	Local Switch Costs (Switch-Repeat)
	Single-Task	Task-Repeat	Task-Switch	Mixing Costs (Repeat-Single)	Local Switch Costs (Switch-Repeat)
Hit Rate	0.91 (.04)	0.88 (.07)	0.84 (.05)	0.05 (.03)	0.04 (.03)
Response Time (msec)	963 (209)	973 (222)	1013 (248)	10 (17)	50 (25)

Non-Incentive Trials Within Incentive Blocks

Short CTI (500 msec)	Single-Task	Mixed-Task		Mixing Costs (Repeat-Single)	Local Switch Costs (Switch-Repeat)
Short CTI (500 msec)	Single-Task	Task-Repeat	Task-Switch	Mixing Costs (Repeat-Single)	Local Switch Costs (Switch-Repeat)
Hit Rate	0.88 (.07)	0.86 (.07)	0.83 (.03)	0.02 (.01)	0.03 (.02)
ResDonse Time (msec)	700 (133)	713 (144)	755 (162)	18 (11)	38 (21)
Long CTI (2000 msec)
Hit Rate	0.88 (.07)	0.86 (.06)	0.84 (.03)	0.02 (.01)	0.02 (.01)
Response Time (msec)	676 (102)	730 (151)	786 (139)	54 (18)	56(14)

Incentive Trials

Short CTI (500 msec)	Single-Task	Mixed-Task		Mixing Costs (Repeat-Single)	Local Switch Costs (Switch-Repeat)
Short CTI (500 msec)	Single-Task	Task-Repeat	Task-Switch	Mixing Costs (Repeat-Single)	Local Switch Costs (Switch-Repeat)
Hit Rate	0.9 (.07)	0.88 (.06)	0.86 (.07)	0.02 (.02)	0.02 (.01)
ResDonse Time (msec)	639 (127)	680 (136)	697 (115)	41 (13)	17 (15)
Lona CT1 (2000 msec)
Hit Rate	0.91 (.05)	0.91 (.04)	0.89 (.05)	0 (.01)	0.02 (.01)
Response Time (msec)	613 (109)	614 (103)	602 (97)	1 (18)	−12 (17)

** Data refer to group means (excluding error trials) with standard deviation in parentheses