Video instalation

1) questions asked:

What is a video installation? What are its means of expression? How do these differ from the media from other arts? What kinds of installations are there? What effects on a visitor does the art form promote? What cultural function does or could this art form serve? 

2) answers:
-artist must actually come and install the elements, including electronic components in the case of video, in a designated space.
-room = frame for installation, installation art depends on the existence of a space
-installation, because it is not tied down to its art of production, produces an aura

-video installation expresses the here and now, 2 planes of language
-video installation are the privileged art forms for setting this mediated/built environment into play for purposes of reflection

-in a larger sense, all installation art is interactive, since the visitor chooses a trajectory among all the possibilities. This trajectory is a variable narrative simultaneously embodied and constructed at the level of presentation. 
-2 types of video installation: closed-circuit= live feed that relays image to one or more monitors, recorded art installation= performative/ declarative
-2 and 3 dimensions: Video- image on screen, the virtual space, light on the screen, surrounding sounds, tone and colors,
shift into 3D with the arrangement of the TV screens, the space in which it occupies
-1 or 4 dimensions-  exploiting the body itself and the senses; experience itself and interpretation
-people can come and boas they please at any point during the work, it takes time, it requires the visitor to reflect on the experience
-vid art transforms the nature of the museum, begins to partake in a long overdue recognition afforded to the arts of presentation