Before revision:  In this paper, we emit the backpropagation-based recollection hypothesis as follows: weak and fast fading retrograde signals following the post to pre-synaptic backward pathways with highest pre-synaptic weights , mediate explicit cue-based memory recall.
After revision:  In this paper, we emit the backpropagation-based recollection hypothesis as follows: weak and fast fading Action Potentials following the (highest weight) post to pre-synaptic backward pathways with highest pre-synaptic weights , mediate explicit cue-based memory recall.