Table 1. Rearing conditions.
Rearing | Description of visual input | Salient changes in receptive fields | References |
Normal | Normal visual input. | n/a | [1], [153], [154] |
Stripe | Animals were exposed to a single orientation in both eyes using goggles or a striped environment. | Over-representation of the reared orientation. A reduced number of neurons were strongly orientation selective. Increased binocularity. | [15], [49]–[57] |
Orthogonal | Animals were exposed to horizontal orientations in one eye and vertical orientations in the other eye using goggles. | Increased monocularity. Reduced number of neurons with well-defined orientation preferences. Over-representation of the reared orientation in each eye. | [52],[54],[55],[58]–[61] |
Monocular | Animals were reared with one eye occluded. | Majority of neurons were responsive to the non-occluded eye. A small minority were responsive to the occluded eye, almost all neurons were extremely monocular. | [12]–[14], [16], [55], [62]–[73], [76], [78] |
Alternating-monocular | Animals were reared with only one eye open at any time, but the occluded eye was regularly alternated. | Strongly monocular receptive fields but with equal representation of both eyes and all orientations. | [10], [55], [74]–[76], [79]–[81], [84] |
Partial-monocular | Animals were reared with one eye occluded but were given a small amount of binocular experience. | Recovery of near-equal representation of both eyes, but with few binocular responses and poor depth perception. | [16]–[19], [75], [78], [82]–[84] |
Strabismic | Nonparallel visual axis (achieved artificially by severing extra-ocular muscles or with prisms). | Normal orientation coverage but with few binocular responses | [10], [12], [18], [55], [74], [87], [89]–[96] |
We modelled receptive field development in normal and six abnormal rearing conditions. This table provides a summary of the receptive field changes observed in each condition along with references to the original experiments. In our model, abnormal conditions were simulated by filtering the binocular training input to be consistent with the visual experience of the abnormally reared animals.