Attention priority map of face images in human early visual cortex
Ce Mo1; Ce Moa, Dongjun He1,2,3,4; Fang Fang1,2,3,4,5
Conference Name2017年第二届曲阜视觉科学会议
Conference Date2017.7.2
Conference Place曲阜

PURPOSE: Attention priority maps are topographic representations that is utilized for attention selection and guidance of task-related behavior during visual processing. Previous studies have identified attention priority maps of simple artificial stimuli in multiple cortical and subcortical areas, while investigating neural correlates of priority maps of natural stimuli is complicated by the complexity of multi-dimensional stimulus information, the difficulty of behaviorally characterizing priority maps of natural stimuli and the possible influence of spatial structure of natural stimuli on priority maps.
METHODS: Here, we overcame these challenges by reconstructing the topographic representations of face stimuli from fMRI BOLD signals in early visual areas V1-V3 based on voxel-wise population receptive field models and behaviorally characterizing the priority maps as the first saccadic eye movement patterns when subjects performed an image matching task. We used face stimuli because the spatial structure of face components is consistent, which allows effective reconstruction of topographic representation and easy examination of the possible influence of image configuration on priority maps.
RESULTS: We found that the first saccadic eye movement patterns could be well predicted from the reconstructed topographic representations in early visual areas. Moreover, face inversion modulated the coupling between the first saccadic target pattern and the reconstructed representations in V2/3 but not in V1.
CONCLUSIONS: Our findings thus provide novel evidence for priority maps of natural stimuli in early visual areas and extend the traditional attention priority map theory by revealing another critical factor that affects priority maps in extrastriate cortex in addition to physical salience and task goal relevance, namely the configuration of stimulus image.

Keywordpriority map natural stimuli face early visual cortex
Document Type会议论文
Affiliation1.Peking-Tsinghua Center for Life Sciences
2.School of Psychological and Cognitive Sciences
3.Beijing Key Laboratory of Behavior and Mental Health
4.IDG/McGovern Institute for Brain Research
5.Key Laboratory of Machine Perception (Ministry of Education), Peking University
Recommended Citation
GB/T 7714
Ce Mo,Ce Moa, Dongjun He,Fang Fang. Attention priority map of face images in human early visual cortex[C],2017.
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