Anderson John R, Qin Yulin, Jung Kwan-Jin, Carter Cameron S
Psychology Department, Carnegie Mellon University, Pittsburgh, PA 15213, USA. ja+@cmu.edu
Cogn Psychol. 2007 May;54(3):185-217. doi: 10.1016/j.cogpsych.2006.06.003. Epub 2006 Aug 17.
This research uses fMRI to understand the role of eight cortical regions in a relatively complex information-processing task. Modality of input (visual versus auditory) and modality of output (manual versus vocal) are manipulated. Two perceptual regions (auditory cortex and fusiform gyrus) only reflected perceptual encoding. Two motor regions were involved in information rehearsal as well as programming of overt actions. Two cortical regions (parietal and prefrontal) performed processing (retrieval and representational change) independent of input and output modality. The final two regions (anterior cingulate and caudate) were involved in control of cognition independent of modality of input or output and content of the material. An information-processing model, based on the ACT-R theory, is described that predicts the BOLD response in these regions. Different modules in the theory vary in the degree to which they are modality-specific and the degree to which they are involved in central versus peripheral cognitive processes.
本研究使用功能磁共振成像（fMRI）来了解八个皮质区域在相对复杂的信息处理任务中的作用。对输入方式（视觉与听觉）和输出方式（手动与发声）进行了操控。两个感知区域（听觉皮层和梭状回）仅反映感知编码。两个运动区域参与信息复述以及明显动作的编程。两个皮质区域（顶叶和前额叶）进行与输入和输出方式无关的处理（检索和表征变化）。最后两个区域（前扣带回和尾状核）参与与输入或输出方式以及材料内容无关的认知控制。描述了一个基于ACT - R理论的信息处理模型，该模型预测这些区域的血氧水平依赖（BOLD）反应。该理论中的不同模块在其特定于某种方式的程度以及参与中枢与外周认知过程的程度方面存在差异。
