I agree with that, as long as “intermediate abstraction level” is sufficiently broad so as to also include V1. When I wrote “some of the neurons...are messed up and not sending those signals” I was mostly imagining neurons in V1. Admittedly it could also be neurons in V2 or something. I dunno. I agree with you that it’s unlikely to originate before V1, i.e. retina or LGN (=the thalamus waystation between retina and V1). (Not having thought too hard about it.)
(My vague impression is that the lateral connections within V1 are doing a lot of the work in finding object boundaries.)
I agree with that, as long as “intermediate abstraction level” is sufficiently broad so as to also include V1. When I wrote “some of the neurons...are messed up and not sending those signals” I was mostly imagining neurons in V1. Admittedly it could also be neurons in V2 or something. I dunno. I agree with you that it’s unlikely to originate before V1, i.e. retina or LGN (=the thalamus waystation between retina and V1). (Not having thought too hard about it.)
(My vague impression is that the lateral connections within V1 are doing a lot of the work in finding object boundaries.)