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. Author manuscript; available in PMC: 2009 Nov 1.
Published in final edited form as: J Exp Psychol Gen. 2008 Nov;137(4):649–672. doi: 10.1037/a0013170

Figure 6.

Figure 6

A and B: The interactive race model architecture. The go (G) unit is activated via the presentation of the go stimulus. The go response is executed once the threshold is reached. Interruption of the go process starts once the stop unit is activated. On stop-signal trials (Figure 6A), the stop (S) unit is activated via the presentation of the stop signal (left panel). On no-stop-signal trials for which the stimulus was previously associated with the stop goal (Figure 6B), the stop (S) unit is activated via the presentation of the primary-task stimulus.

C: Go unit activation for no-stop-signal trials (NS), signal-respond trials (SR) and signal-inhibit trials (SI) as a function of the primary-task stimulus presentation (GO) and stop-signal presentation (STOP). The moment the stop unit is activated is indicated by the leftmost vertical dashed line; the moment go processing is successfully interrupted is indicated by the right-most vertical dashed line.

D: Go unit activation for consistent no-stop-signal trials (NS) and no-stop-signal trials on which the stop goal is activated through memory retrieval (NS-SI) as a function of the primary-task stimulus presentation (GO). The moment the stop unit is activated is indicated by the vertical dashed line.