Parnia's team, in an ongoing experiment, set up special shelving inrooms in which people are resuscitated, holdingrandomly generated pictures on theceiling at an angle that require an out of body experience - the person wouldhave to be separate from the corporeal body to see the images.
这个句子里面为何用holding，同时generated的主语是什么？
Parnia's team, in an ongoing experiment, set up special shelving in rooms in which people are resuscitated, holding randomly generated pictures on the ceiling at an angle that require an out of body experience - the person would have to be separate from the corporeal body to see the images.
1. 这一部分 holdingrandomly generated pictures on the ceiling at an angle that require an out of body experience 为目前分词短语，作随着状语。
2. generated 的逻辑主语是后面的 pictures，表示被动关系。randomly generated pictures = pictures that are randomly generated.
【注】说到非谓语动词时，别说其主语是哪个，应该说其逻辑主语是哪个。主语是针对谓语动词而言的，逻辑主语是针对非谓语动词而言的。
