The neural substrate of the ideomotor principle revisited: Evidence for asymmetries in action-effect learning

► Investigation of brain activations underlying ideomotor (IM) processing by fMRI. ► In replication, IM response activation was increased for left-hand action effects. ► This hand asymmetry could be linked to an analogous asymmetry in IM learning. ► First description of the neural substrate of IM learning in the literature. ► Caudate nucleus and angular gyrus appeared as central structures of IM learning.