APPLICABILITY OF BOLD FMRI AT 3T AND 7T VISION & PERCEPTION

这个子项目是许多研究子项目中利用 资源由NIH/NCRR资助的中心拨款提供。子项目和 调查员(PI)可能从NIH的另一个来源获得了主要资金， 并因此可以在其他清晰的条目中表示。列出的机构是 该中心不一定是调查人员的机构。 我们正在使用一种视觉刺激范式，它在初级视觉皮质产生具有良好特征的局部性神经抑制，以测试在精细空间尺度上，积极的大胆反应是与神经输出更密切相关，还是与局部神经抑制更密切相关。在过去的一年里，我们发表了一篇论文，证明V1的大胆反应与局部神经抑制的幅度比与局部神经输出的相关性更好；第二篇手稿正在准备中。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. We are using a visual stimulus paradigm that produces well-characterized localized neural inhibition in primary visual cortex to test whether, on a fine spatial scale, the positive BOLD response is more closely related to the neural output or the local neural inhibition. In the past year we have published one paper demonstrating that the V1 BOLD response correlates better with the magnitude of the local neural inhibition than with the local neural output; a second manuscript is in preparation.