… that varies widely across images and observers, yet the world still typically appears 'in focus'…
role of neural adaptation 1 in the human perception of image focus by measuring how blur …

… optics in order to focus the retinal image. Yet neural responses may also adjust continuously
to the degree of blur or sharpness in the retinal image, through the processes of adaptation. …

… analogous adjustments in the spatial domain are fundamentally involved in compensating
spatial vision for the inherent blur in the eye and neural coding. 20.3 SOURCES OF BLUR …

… be due to neural factors. We then manipulated retinal blur by projecting degraded images
with … Tilt and astigmatism were set to zero whereas defocus was adjusted to maximize optical …

… aberration, adjusting the defocus to match the blur corresponding … of neural adaptation
because the best subjective image quality … Neural adaptation slightly modifies the best aberration …

… The neural processes mediating adaptation to blur thus appear to remain largely intact with
… in steps of 0.01 to allow for finely graded adjustments in blur magnitude. After filtering, all …

… Though these aberrations always blur the retinal image, our … This supports the hypothesis
that the neural visual system is … lens, the neural compensation will remain adjusted to the first …

… In fact, equal response amplitudes at different scales might form a neural signature of
physically focused images, just as equating chromatic responses might form the basis for …

… neural representations of image blur can be recalibrated as a function of depth. Participants
were exposed to textured images whose blur … that neural adjustments to image blur are …

… the optical and neural contributions to age differences in the resolution of blurred stimuli, the
… In that age-related long-term neural compensation should be more evident for familiar than …