%0 Journal Article %T Deep Brain Stimulation of the Pedunculopontine Tegmental Nucleus (PPN) Influences Visual Contrast Sensitivity in Human Observers %A Hans-Jochen Heinze %A Hendrik Strumpf %A Jens-Max Hopf %A Joern Kaufmann %A Jščrgen Voges %A Mircea Ariel Schoenfeld %A Patricia Panther %A Toemme Noesselt %J Archive of "PLoS ONE". %D 2016 %R 10.1371/journal.pone.0155206 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4864298/