Thursday, June 30, 2022
everybody's equal and we should treat everybody fairly. -obama
without the green space parks provide, areas are more vulnerable to flooding, severe heat, and the effects of the climate crisis. without places to gather, residents miss out on opportunities to connect and grow stronger. these are some of the reasons we deliberately focus our work in communities where parks and public lands are needed most.
trust for public land
Wednesday, June 29, 2022
however, considerations about the ecology of light lead us also to expect greater subjective expansions when the central region appears black than any other color.
that is, when an observer moves into a dark place, this is invariably associated to the experience of an absence of light and necessarily of color.
this illusion, new to science
in this case, the illusory motion of the dark central region in figure 1 evokes the opposite illusory effect of the white central region in figure 2. observers experience a decrease in perceived brightness or a growing sense of darkness, as if entering a space voided of light.
frontiers
the eye pupil adjusts to illusory expanding holes
although the psychophysiological adjustments of the eye pupil to illusory patterns may seem useless,
according to this perspective, these changes in diameter could be more adaptive
than pupil responses based on a more precise scaling of the physical features of visual stimuli.
specifically, a preparatory constriction to illusory light could
have an important function by promoting behavior to avoid
being “dazzled” by physical (real) light.
in fact, glare can temporarily incapacitate sight and lead to life-threatening situations (e.g., it is a common cause of lethal traffic accidents.
frontiers
the eye pupil adjusts to illusory expanding holes
given that the above type of illusion also implies an illusory change in luminance, since it implies expanding darkness, it is possible to probe the impact of the illusion not only via an observer’s phenomenology, consisting of conscious verbal reports, but also by examining a concurrent, involuntary, physiological index: the diameter of the eye pupil.
at the root of these bright/dark illusions is the fact that, in general, the perception of light is not straightforwardly related to physical parameters; hence, the visual system relies on ecological regularities or constraints to generate perceptual hypotheses that, in most instances, achieve pragmatically the behavioral success of vision.
frontiers science news
this illusion, new to science, is strong enough to trick our reflexes
this article talks about how the eye sees change in a static pattern in anticipation of the change. i think we also may see a static pattern in change as it happens, in anticipation or imagination of the culmination of the change and the static pattern of the built environment where we still, having observed it before the hole existed and watched the hole grow into buildings, see the fallen trees and the growing hole.
there's something about a hole. your mind is drawn to look. while you look the hole seems to grow, as if your looking is digging the hole. if you were allowed, you could climb in and make pictures of yourself hiding in little pockets of dirt your mind hiding and expanding in the built spaces of the hole.