title: Parallel distributed processing neuroimaging in the Stroop task using spatially filtered magnetoencephalography analysis.
abstract: Parallel distributed processing neuroimaging in the Stroop color word interference task in five healthy subjects was studied. The total reaction time was set at 650 ms with a time window of 200 ms in steps of 50 ms. Spatially filtered magnetoencephalography analysis, as used in synthetic aperture magnetometry, was used. Neural activation began in the left posterior parietal-occipital area (150-250 ms post-stimulus), followed by the right prefrontal polar area (250-350 ms), the left dorsolateral prefrontal cortex (250-400 ms), and the mid- to lower- primary motor area (350-400 ms). Successive and temporally overlapping activation of various cortical regions were successfully estimated within a short 200 ms time interval, contrary to previous positron emission tomography and fMRI studies.
authors.affiliation: Department of Psychiatry and Behavioral Science, Osaka University Graduate School of Medicine, D3, 2-2, Yamada-oka, Suita City, Osaka 565-0871, Japan. ukai@psy.med.osaka-u.ac.jp
authors.forename: Satoshi
authors.initials: S
authors.lastname: Ukai
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Shinosaki
authors.forename: Ryouhei
authors.initials: R
authors.lastname: Ishii
authors.forename: Asao
authors.initials: A
authors.lastname: Ogawa
authors.forename: Yuko
authors.initials: Y
authors.lastname: Mizuno-Matsumoto
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Inouye
authors.forename: Norio
authors.initials: N
authors.lastname: Hirabuki
authors.forename: Toshiki
authors.initials: T
authors.lastname: Yoshimine
authors.forename: Stephen E
authors.initials: SE
authors.lastname: Robinson
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Takeda
mesh_terms: D000328:Adult; D001931:Brain Mapping; D003118:Color Perception / Q000502:physiology*; D003344:Cortical Synchronization; D007839:Functional Laterality; D006801:Humans; D007564:Japan; D015225:Magnetoencephalography; D010364:Pattern Recognition, Visual / Q000502:physiology; D017397:Prefrontal Cortex / Q000033:anatomy & histology / Q000502:physiology*; D011932:Reading