To better understand how the visual system makes use of information across spatial scales
when identifying different kinds of complex patterns, we measured human and ideal contrast …

Spatial-frequency characteristics of letter identification are much better understood in the
fovea than in the periphery. The purpose of this study was to compare the spatial-frequency …

Previous research suggests that observers use information near the eyes and eyebrows to
identify both upright and inverted faces [Sekuler, AB, Gaspar, CM, Gold, JM, & Bennett, PJ …

Recently, Tjan, Braje, Legge and Kersten [(1995) Vision Research, 35, 3053–3069] found
that human efficiency for object recognition was less than 10%, indicating that humans fail to …

How we see is today explained by physical optics and retinal transduction, followed by
feature detection, in the cortex, by a bank of parallel independent spatial-frequency-selective …

To determine which spatial frequencies are most effective for letter identification, and
whether this is because letters are objectively more discriminable in these frequency bands …

We measured thresholds in a 1-of-10 face identification task in which stimuli were
embedded in orientation-filtered Gaussian noise. For upright faces, the threshold elevation …

If face images are degraded by block averaging, there is a nonlinear decline in recognition
accuracy as block size increases, suggesting that identification requires a critical minimum …

Seeking to understand how people recognize objects, we have examined how they identify
letters. We expected this 26-way classification of familiar forms to challenge the popular …

The relevance of low and high spatial-frequency information for the recognition of
photographs of faces has been investigated by testing recognition of faces that have been …