FIGURE 1.

The theoretic framework of an attentional process applied in the present study. An attentional process can be divided into two stages: pre-cue and post-cue stages, separated by the onset of a cue/stimulus (e.g., the onset of light illumination). At the pre-cue stage, animals need to avoid being distracted; impulsivity (impaired response inhibition) may lead to premature responses. At the post-cue stage, animals need to initiate their responses at the appropriate time; lapses of attention may lead to slow or wrong actions.