Volitional control in the learning of artificial grammars

Dienes & Perner argue that volitional control in artificial grammar learnin g is best understood in terms of the distinction between implicit and expli cit knowledge representations. We maintain that direct, explicit access to knowledge organised in a hierarchy of implicitness/explicitness is neither necessary nor sufficient to explain volitional control. People can invoke v olitional control when their knowledge is implicit, as in the case of artif icial grammar learning, and they can invoke volitional control when any par t of their knowledge representation is implicit, as can be seen by examinin g "feeling of knowing" phenomena.