Evidence from multiple neuroimaging studies demonstrates that unconscious neural activity, such as the readiness potential, precedes a person's conscious awareness or decision to initiate a voluntary action.
The retrieved papers (particularly 4, 5, and 11) investigate Libet-style paradigms and readiness potentials, consistently finding that neural preparatory activity precedes conscious awareness of the intention to move. No papers refute this phenomenon, though some discuss alternative interpretations of what the neural signals represent.