Responses of cells in monkey visual cortex during perceptual filling-in of an artificial scotoma. Deweerd, P.; Gattass, R.; Desimone, R.; and Ungerleider, L. G. Nature, 377:731-734, October, 1995. abstract bibtex WHEN we view a scene through one eye, we typically do not see the scotomas created by the optic disc and the blood vessels overlying the retinal surface. Similarly, when a texture field containing a hole is steadily viewed in peripheral vision (artificial scotoma), the hole appears to fill in with the surrounding texture in a matter of seconds, demonstrating that the visual system fills in information across regions where no information is available(1-5). Here we show that, in monkeys viewing a similar texture field with a hole, the responses of extrastriate visual neurons with receptive fields covering the hole increase gradually to a level comparable to that elicited by the same texture without a hole. The time course of these dynamic changes in activity parallels the time course of perceived filling-in of the hole by human observers, suggesting that this process mediates perceptual filling-in.
@article{ deWeerd_etal95,
author = {Deweerd, P. and Gattass, R. and Desimone, R. and Ungerleider, L.
G.},
title = {Responses of cells in monkey visual cortex during perceptual filling-in
of an artificial scotoma},
journal = {Nature},
year = {1995},
volume = {377},
pages = {731-734},
month = {October},
abstract = {WHEN we view a scene through one eye, we typically do not see the
scotomas created by the optic disc and the blood vessels overlying
the retinal surface. Similarly, when a texture field containing a
hole is steadily viewed in peripheral vision (artificial scotoma),
the hole appears to fill in with the surrounding texture in a matter
of seconds, demonstrating that the visual system fills in information
across regions where no information is available(1-5). Here we show
that, in monkeys viewing a similar texture field with a hole, the
responses of extrastriate visual neurons with receptive fields covering
the hole increase gradually to a level comparable to that elicited
by the same texture without a hole. The time course of these dynamic
changes in activity parallels the time course of perceived filling-in
of the hole by human observers, suggesting that this process mediates
perceptual filling-in.},
en_number = {3.3.4:52}
}