Topic: self-initiated actions

Although the dopamine system’s involvement in both action control and conveying reward-related information, it is understudied how these two functions are integrated. Using a rewarded go/no-go paradigm to examine the integration of these functions, a previous study demonstrated that self-initiated actions influence reward-related dopamine release in the striatum. We expanded this work by comparing self- and signal-initiated actions, since dopamine is strongly recruited by environmental signals. Furthermore, some studies define action requirements for ‘no-go’ trials as immobility, others as wit

Previous research has shown that the N1 responses are attenuated for sensory consequences of self-initiated actions compared to externally-initiated sensory consequences. This illustrates the existence of prediction mechanisms allowing the differentiation between self and externally generated events. Previous studies provided evidence for modulated N1 responses following self-initiated sounds or pictures. A recent study showed attenuated N1 responses also for self-initiated auditory-visual stimuli. The present study investigated the impact of temporal synchrony of the auditory and visual stimu