Scenes unseen: The parahippocampal cortex intrinsically subserves contextual associations, not scenes or places per se

被引:189
作者
Bar, Moshe [1 ]
Aminoff, Elissa [1 ,2 ]
Schacter, Daniel L. [1 ,2 ]
机构
[1] Harvard Univ, Massachusetts Gen Hosp, Sch Med, Martinos Ctr Biomed Imaging, Charlestown, MA 02129 USA
[2] Harvard Univ, Dept Psychol, Cambridge, MA 02115 USA
关键词
context; PPA; scenes; associations; parahippocampal cortex; fMRI;
D O I
10.1523/JNEUROSCI.0987-08.2008
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The parahippocampal cortex (PHC) has been implicated in both place/scene processing and episodic memory. We proposed that this region should instead be seen as intrinsically mediating contextual associations and not place/scene processing or episodic memory exclusively. Given that place/scene processing and episodic memory both rely on associations, this modified framework provides a platform for reconciling what seemed like different roles assigned to the same region. Comparing scenes with scenes, we show here that the PHC responds significantly more strongly to scenes with rich contextual associations compared with scenes of equal visual qualities but less associations. This result adds unequivocal support to the view that the PHC mediates contextual associations in general rather than places or scenes proper, and necessitates a revision of the current view that the PHC contains a dedicated place/scenes "module.".
引用
收藏
页码:8539 / 8544
页数:6
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