Topic: internal motivation

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