ABSTRACT

How do we perceive the timing of our own actions? Consider, as an example, an elementary, quasi-punctate act such as a keypress or a finger tap on a surface. Acts such as these are perceived as occurring at certain points in time. In this chapter, we explore functional sources on which the perceived timing of one’s own actions is based. Even for a simple act such as a finger tap, a number of sources could contribute to the act’s perceived time, ranging from its mental antecedents (e.g., action plans or intentions) through the motor outflow that generates the tap (say, central commands or peripheral activations) to the proprioceptive inflow arising from its execution (kinesthetic and tactile feedback)—perhaps even including the inflow arising from its consequences in the environment (e.g., the sound of a beep triggered by the tap).