This study uses cognitive psychological experiments to elucidate human temporal co-creation with environments or other people. Time series analyses of alternate tapping with constantly paced computer signals (Experiment 1) show some modality-specific features when the participants receive signals through visual or auditory means. Subliminally perturbed signals using sine-wave function (Experimental 2) were revealed as having effects on the participants' tapping performance especially in visual perturbation. Results from interpersonal tapping tasks (Experiment 3) reveal the emergence of temporal co-creation, including entrainment and mutually complementary relationships depending on the sense modality. These findings can be the underlying basis of the design for natural temporal communication between human and artifacts.