 | It is one dimensional |
| It is of a very limited extent spatially |
| The input cannot be really temporally modulated |
| It is hard to really vary the input to examine what happens on the output |
| Only X cells are modeled |
| The X cells do not show the dependence of the center size to temporal
frequency as shown my Troy
and Enroth-Cugell (1989) |
| You cannot really observer the output over time |
| The effects of the tremor eye movements are not well modeled (Carpenter,
1977) |
