Visuomotor Coordination in Behaviour of Pigeons Following Post-Hatching Monocular Experience: An Image Analysis Study

摘要: We investigated the role of visual binocular inputs during development on visuo-motor coordination in conditioned key-pecking responses to differently sized spots. Five groups pigeons were used: monocular control group; two early (retinal ablated -ERA-, and eyeball enucleated -EEE) operated days post-hatching; late (adult pigeons, retinal — LRA-, -LEE). The most substantial results occurred groups: impairment performance at small size spot, loss bill gape/spot permanent inaccurate reaching trajectory, particularly EEE group. On contrary, did not show any significant difference compared with present data indicate that interactions are crucial system and, addition, prove differential played by extraretinal visuomotor coordination. Once maturation stage is accomplished (late groups) eyes can work independently one from other responses.