More recently, with the demonstration of a direct input from the LGN to area V5 (MT), which delivers signals from fast moving stimuli at latencies of about 30 ms, another explanation has emerged. This one proposes that the delivery of these signals is sufficient to arouse a conscious experience of fast visual motion, without implying that it is V5 alone that is responsible, since once signals reach V5, they may be propagated to other areas of the brain. The latter account would seem to exclude the possibility that signals are "pre-processed" by V1 or "post-processed" by it (through return connections from V5 back to V1), as has been suggested. The pulvinar nucleus of the thalamus also sends direct, V1 by-passing, signals to V5 but their precise role in generating a conscious visual experience of motion has not yet been determined.
More recently with the demonstration of a direct input from the LGN to area V5 (MT) which delivers signals from fast moving stimuli at latencies of about 30 ms another explanation has emerged This one proposes that the delivery of these signals is sufficient to arouse a conscious experience of fast visual motion without implying that it is V5 alone that is responsible since once signals reach V5 they may be propagated to other areas of the brain The latter account would seem to exclude the possibility that signals are "pre-processed" by V1 or "post-processed" by it (through return connections from V5 back to V1) as has been suggested The pulvinar nucleus of the thalamus also sends direct V1 by-passing signals to V5 but their precise role in generating a conscious visual experience of motion has not yet been determined