遇见数据集

Individual Brain Charting: ARCHI spatial

收藏
DataCite Commons2021-11-25 更新2025-04-15 收录
官方服务:

资源简介:

This dataset contains functional magnetic resonance images (fMRIs) of 12 subjects that examins functions involved in spatial cognition. The paradigm was structured in blocks and it comprised five block categories. Each block was formed by a set of trials containing an event, in which visual instructions related to one or two conditions of the same kind were displayed. These five categories of blocks were characterized as follows: (1) saccade, in which ocular movements were performed according to the displacement of a fixation across from the center toward peripheral locations in the image displayed; (2) imitation of object grasping with the right hand, in which the corresponding object was displayed on the screen; (3) mimic orientation of rhombus, displayed as image background on the screen, using the right hand; events of block categories 2 and 3 featured the same visual stimuli, in order to capture grasping-specific activity; (4) judgment on the left/right orientation of a hand displayed as visual stimulus; and (5) judgment on the palmar/dorsal direction of a hand displayed as visual stimulus. Events of block categories 4 and 5 featured the same visual stimuli. The task was constituted by forty blocks per run. The order of blocks presentation was pseudo-randomized for the session, but fixed for all participants. Each block was composed by either three or four trials. The duration of the trials ranged between 1.2 and 1.8 seconds. All blocks were inter-spaced by a fixation-cross period with a duration between four and six seconds. [https://openfmri.org/dataset/ds000244/](https://openfmri.org/dataset/ds000244/) [https://neurovault.org/collections/2138/](https://neurovault.org/collections/2138/)

创建时间:
2018-10-25
二维码
社区交流群
二维码
科研交流群
商业服务