Do simple or complex cells dominate the output of V1?

[KFS]

I’m trying to learn more about visual processing in the brain and had a quick question.

Is the output from V1 primarily influenced by simple or complex cell responses in V1? Or perhaps it is an even mix of both? Or perhaps it differs depending on whether the output is targeting the dorsal or ventral streams? I’m sure science has an answer…

Thanks for your help.

[rhyolight]

I don’t know the answer but I suggest reading this:

Notes: Two papers on receptive fields in Cat V1

Here are my notes on the following papers: Laminar differences in receptive field properties of cells in cat primary visual cortex, Gilbert (1977) Receptive field structure varies with layer in the primary visual cortex Martinez, Wang, Reid, Pillai, Alonso, Sommer, Hirsch (2005) I also use some information from: The Role of Horizontal Connections in Generating Long Receptive Fields in the Cat Visual Cortex Bolz, Gilbert (1989) These notes leave out a lot, but I’ve tried to capture some …

The Thousand Brains Theory predicts the answer will likely be the same in V1 and other regions as well.