Based on the assumption that the neural activity in regions involved in a competitive execution decision will reflect information about the time and distance of the accumulation process, we generated BOLD predictions from each of the models using the following procedure.
First, a DPM, where the initial state of the action cancellation signal depends on the current state of the execution decision, provides a much better fit to reactive stopping performance than models where these two processes are independent.
In the experimental design the hand choice (left, right) was coupled with a propositional content (color, position) of the utterance and the execution decision (go, nogo) was coupled with the sentence mood (declarative, interrogative).
The execution decision, condemned by the United Nations and labeled as vengeful bloodlust by Human Rights Watch, may be less about a strategic and soundly considered deterrence to potential terrorists and more about political opportunism and rising pressures.
The three experimental factors were Attribute (color, position), Execution Decision (go, nogo), and Language (Chinese, German, Polish).
However, if execution decision is inherently more difficult than hand choice, it should always demand more processing time and evoke a nogo-LRP in any case.
This explanation seems to imply that the process of execution decision be more difficult than that of hand choice and, consequently, would be specifically affected by reduced resources deployment.
According to this explanation, the more complex task in the main experiment might have led speakers to allocate less resources to those perceptual processes leading to the execution decision (go vs. nogo).
Thus, in the experimental design two motor processes of the button pressing task, the hand choice (left or right) and the execution decision (go or nogo), were connected with two kinds of lexical information.
In other words, a proactive no-go decision occurs when the system fails to accrue enough evidence to reach the execution decision boundary.
