The effect of response execution on P3 latency, reaction time, and movement time

Abstract

This study examined the effect of response selection and execution on P3 latency during the performance of simple reaction time (RT) and stimulus-response compatibility tasks. Response time on these tasks was defined in terms of RT and movement time (MT). Event-related brain potentials were recorded from 67 female participants concurrently with the performance measures. On the simple RT task, the distance of the response button from the home button was varied (7, 15, and 23 cm). When stimulus evaluation demands were minimal, response execution affected P3 latency, with increased response button distance resulting in increased P3 latency. However, these movement effects were modest, and in most protocols, would not be a confounding factor. The stimulus-response compatibility task examined the interaction of stimulus evaluation demands and response requirements. RT, MT, and P3 latency were affected by stimulus congruency, whereas RT and P3 amplitude were affected by response compatibility.

Differential influences of exercise intensity on information processing in the central nervous system

“…RT can be decomposed to include, for example, components such as stimulus evaluation, response selection, and response execution (Doucet and Stelmack 1999). However, P300 latency is considered a measure of stimulus classification speed or stimulus evaluation time (Kutas et al 1977).…”

Effects of aging, Parkinson's disease, and dopaminergic medication on response selection and control

“…Doucet and Stelmack, 1999;Leuthold and Sommer, 1998). The latency is longer in incompatible than in compatible S-R mappings.…”

Variations in theTNF-α Gene (TNF-α -308G→A) Affect Attention and Action Selection Mechanisms in a Dissociated Fashion

“…Corroborating this, the N2 has been shown to be modulated in basal ganglia diseases (Beste et al 2008a;Willemssen et al 2009). Besides the N2, the latency of parietal P3 (P3b) is affected by action selection processes with longer P3 latencies in complex as compared with easy tasks and in incompatible as compared with compatible S-R relations (e.g., Doucet and Stelmack 1999;Falkenstein et al 1994;Leuthold and Sommer 1998).…”