TY - RPRT TI - Visual area V4 encodes history dependent attentional effort and single-trial perceptual detection AU - Ghosh, S. AU - Maunsell, J. H. R. PY - 2019 DO - 10.1101/584409 UR - https://www.biorxiv.org/content/10.1101/584409v1 ID - 10.1101/584409 ER -