To summarize, the present study revealed behavioral segmental onset facilitation as well as early facilitation of repeated segment-sized phonemes during lexical access, reflected in the P2 component. This is followed by two negative components where overlapping phonology causes inhibition and additional self-monitoring. This raises the question of how onset overlap can be named faster than mismatched cases while introducing more response conflict during the later ERP components, especially given the findings in research with manual responses that have demonstrated delayed responses after conflict (e.g., Tillman and Wiens, 2011). There seem to be two important differences between manual and speech response. First, speech responses are not as diverse as manual responses. During manual responses there are usually two completely different responses (e.g., left vs. right hand response), while during speech production, response options involve similar vocal tracts and articulators. Second, the motor responses of speech develop differently over time than manual responses. Facilitative relationship of the two phonologically related representations can be observed earlier in time. Only later the two representations start diverging (Acheson et al., 2012). This could explain why the later competition (demonstrated in the ERPs) in our data does not have the same impact on speech onset latencies as on the speed of manual responses in the case for non-linguistic tasks on the speed of manual responses (e.g., Tillman and Wiens, 2011).