Perceiving age and gender in unfamiliar faces: An fMRI study on face categorization

Perceiving age and gender in unfamiliar faces: An fMRI study on face categorization
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感知陌生面孔中的年龄和性别:关于面孔分类的功能磁共振成像研究

DOI:
10.1016/j.bandc.2011.10.012
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发表时间:
2012
影响因子:
2.5
通讯作者:
Schweinberger
Schweinberger
中科院分区:
心理学3区
文献类型:
--
作者:
Güllmar;Reichenbach;Schweinberger

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对陌生面孔的有效处理通常涉及对其进行分类(例如,老年与年轻或男性与女性)。然而,年龄和性别分类可能会带来不同的感知需求。在本研究中,我们采用功能磁共振成像(fMRI)来比较陌生面孔的年龄与性别分类过程中诱发的活动。在不同的区块中,参与者对年长或年轻的陌生面孔(分别为 50% 女性)进行年龄和性别分类。这两项任务均引起双侧梭状回(梭状面区,FFA)和双侧枕下回(枕面区,OFA)的激活。重要的是,与年龄分类相比,相同的刺激在性别期间引起了增强的激活。这种增强在右侧 FFA 和左侧 OFA 中非常显着,可能与配置处理的增加有关。我们的研究结果复制并扩展了最近的工作,并表明面部处理网络核心组件的激活强烈依赖于任务需求。
Efficient processing of unfamiliar faces typically involves their categorization (e.g., into old vs. young or male vs. female). However, age and gender categorization may pose different perceptual demands. In the present study, we employed functional magnetic resonance imaging (fMRI) to compare the activity evoked during age vs. gender categorization of unfamiliar faces. In different blocks, participants performed age and gender classifications for old or young unfamiliar faces (50% female respectively). Both tasks elicited activations in the bilateral fusiform gyri (fusiform face area, FFA) and bilateral inferior occipital gyri (occipital face area, OFA). Importantly, the same stimuli elicited enhanced activation during gender as compared to age categorization. This enhancement was significant in the right FFA and the left OFA, and may be related to increased configural processing. Our findings replicate and extend recent work, and shows that the activation of core components of the face processing network is strongly dependent on task demands.
DOI: 10.1068/p2784
发表时间: 1999-01-01
期刊: PERCEPTION
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