TY - RPRT TI - Functional MRI reveals spatially specific attentional modulation in human primary visual cortex. AU - D C Somers AU - A M Dale AU - A E Seiffert AU - R B Tootell PY - 1999 DO - 10.1073/pnas.96.4.1663 UR - https://pubmed.ncbi.nlm.nih.gov/9990081/ ID - 9990081 ER -