Modulation of involuntary and voluntary behavior following emotional stimuli in healthy subjects

A kinematic analysis of the association between impulsivity and manual aiming control

“…In contrast to the findings of Lemke et al (2005), who did not find difference between high-and low-impulsives for the peak velocity measure, we observed that high-impulsive subjects achieved higher levels of peak velocity during pen trajectory. However, in our study, participants were instructed to execute the movement to the target as quickly and accurately as possible.…”

“…These results corroborate the previous findings of Lemke (2005) and Lemke et al (2005), in which the difference between high-and low-impulsive healthy adult subjects was observed in measures related to the preprogrammed phase of the movement. Interestingly, we did not find a difference between groups in terms of the duration of the primary submovement in the higher index of difficulty condition, suggesting that the relationship between motor impulsivity and motor control depends on the sensory-motor aspects of the task.…”

“…Recently, two studies used advanced techniques of motion analysis to assess possible differences between low-and high-impulsive subjects in terms of a general measure of impulse control (Lemke, 2005;Lemke et al, 2005). In both studies, kinematic analysis was used to investigate the role of impulsivity in a goal-directed aiming task.…”

“…After peak velocity is achieved, an error correction phase or final homing part occurs (Khan et al, 2006). Results from Lemke (2005) and Lemke et al (2005) indicate that differences between low-and high-impulsive subjects in aiming tasks occur in the preprogrammed part of the movement. However, because the discontinuities in acceleration after the peak velocity, indicating adjustments, were not analyzed, it is possible that low-and high-impulsive subjects also demonstrate differences in visually guided online corrections.…”

“…Lemke (2005) and Lemke et al (2005) were the first to find association between impulsivity and aiming motor control, but they analyzed impulsivity as a unique construct. We tried to take it a step further by analyzing the association between aiming control and the types of impulsivities.…”