Dorsal streams

It is known that in schizophrenia there is something very wrong (at a very early stage order 80-120 millisec) with the magnocellular part and dorsal stream of the visual information processing pathway (cfr John Foxe). Some very intelligent neuropsychiatrists have started to use this knowledge to forge a neurophysiological tool that has the potential to increase the diagnostic quality of their neurophysiological investigations using very robust and simple techniques such as visual evoked potentials. Their effort is now supported by no less then the RIKEN institute where anatomicallty the subdivisions between the ventral (parvocellular) and dorsal (magnocellular) part of visual information pathway at V1 is demonstrated. This is important because it proves that in schizophrenia - long thought of as a pure psychological disorder- very early structural brain anomalies can be demonstrated. early abnormalities in the time window of 100-120 millisec can be captured by neurophysiology.