title: Retinotopy and attention to the face and house images in the human visual cortex.
abstract: Attentional modulation of the neural activities in human visual areas has been well demonstrated. However, the retinotopic activities that are driven by face and house images and attention to face and house images remain unknown. In the present study, we used images of faces and houses to estimate the retinotopic activities that were driven by both the images and attention to the images, driven by attention to the images, and driven by the images. Generally, our results show that both face and house images produced similar retinotopic activities in visual areas, which were only observed in the attention + stimulus and the attention conditions, but not in the stimulus condition. The fusiform face area (FFA) responded to faces that were presented on the horizontal meridian, whereas parahippocampal place area (PPA) rarely responded to house at any visual field. We further analyzed the amplitudes of the neural responses to the target wedge. In V1, V2, V3, V3A, lateral occipital area 1 (LO-1), and hV4, the neural responses to the attended target wedge were significantly greater than those to the unattended target wedge. However, in LO-2, ventral occipital areas 1 and 2 (VO-1 and VO-2) and FFA and PPA, the differences were not significant. We proposed that these areas likely have large fields of attentional modulation for face and house images and exhibit responses to both the target wedge and the background stimuli. In addition, we proposed that the absence of retinotopic activity in the stimulus condition might imply no perceived difference between the target wedge and the background stimuli.
authors.affiliation: College of Computer Science and Technology, Taiyuan University of Technology, Taiyuan, 030024, China.|Graduate School of Natural Science and Technology, Okayama University, Tsushima-Naka 3-1-1, Okayama, 700-8530, Japan.
authors.forename: Bin
authors.initials: B
authors.lastname: Wang
authors.affiliation: School of Life Science, Beijing Institute of Technology, Beijing, 100081, China. yantianyi@bit.edu.cn.
authors.forename: Tianyi
authors.initials: T
authors.lastname: Yan
authors.affiliation: Department of Radiology, Okayama University Hospital, Okayama University, Okayama, 700-8558, Japan.
authors.forename: Seiichiro
authors.initials: S
authors.lastname: Ohno
authors.affiliation: Graduate School of Medicine, Dentistry, Pharmaceutical Sciences, Okayama University, Okayama, 700-8558, Japan.
authors.forename: Susumu
authors.initials: S
authors.lastname: Kanazawa
authors.affiliation: Graduate School of Natural Science and Technology, Okayama University, Tsushima-Naka 3-1-1, Okayama, 700-8530, Japan. wu@mech.okayama-u.ac.jp.
authors.forename: Jinglong
authors.initials: J
authors.lastname: Wu
mesh_terms: D000328:Adult; D001288:Attention / Q000502:physiology*; D001931:Brain Mapping / Q000379:methods*; D000066499:Facial Recognition; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology*; D012160:Retina / Q000502:physiology*; D014793:Visual Cortex / Q000502:physiology*; D055815:Young Adult
keywords: Attention; Face; House; Retinotopy; Visual area; fMRI
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