Final answer:
The incorrect statement about the experiment on cat's visual deprivation is the one suggesting that suturing a cat's eye for 3 days has a greater effect on ocular dominance than suturing it for 6 days after 1 month of birth. Research indicates that longer periods of deprivation during critical periods of growth have more pronounced effects on ocular dominance.
Step-by-step explanation:
One of the propositions stated in the question about the experiment on cat's visual deprivation is incorrect. Specifically, it's the assertion that suturing a cat's eye for 3 days had a greater effect on its ocular dominance than suturing it for 6 days, both after 1 month after birth. Research, including the work of Nobel Prize winners David Hubel and Torsten Wiesel, has shown that there is a critical period of visual development. During this time, if a kitten is deprived of sensory input from one eye, the neural connections that would normally be used by that eye can be reallocated to the other eye. Thus, ocular dominance can be affected by visual deprivation. The greater the duration of deprivation during the critical period, the more pronounced the effect on ocular dominance. Therefore, suturing a cat's eye for a longer period would likely have a greater impact, contradicting the assertion that 3 days of suturing has a greater effect than 6 days.
Additionally, the claim that suturing a cat's eye at birth as opposed to after 12 months had no significant difference on its ocular dominance is also false. The critical period for visual development occurs early in an animal's life, so suturing one eye at birth would have a significant effect, whereas doing so after this critical period would have a reduced impact, as the visual system is no longer as plastic.