ECVP '07 Abstracts

By M. Kleiner, D. Brainard, Denis G. Pelli. Perception, 2007

3,138 citations recorded by the source corpus.

Observers perceive sinusoidal shading patterns as being due to sinusoidally corrugated surfaces, and perceive surface peaks to be offset from luminance maxima by between zero and 1/4 wavelength. This offset varies with grating orientation. Physically, the shading profile of a sinusoidal surface will be approximately sinusoidal, with the same spatial frequency as the surface, only when: (A) it is lit suitably obliquely by a point source, or (B) the light source is diffuse and hemispherical--the 'dark is deep' rule applies. For A, surface peaks will be offset by 1/4 wavelength from the luminance maxima; for B, this offset will be zero. As the sum of two same-frequency sinusoids with different phases is a sinusoid of intermediate phase, our results suggest that observers assume a mixture of two light sources whose relative strength varies with grating orientation. The perceived surface offsets imply that gratings close to horizontal are taken to be lit by a point source; those close to vertical by a diffuse source. [Supported by EPSRC grants to AJS and MAG].

Subfields: Control and Systems Engineering

View Paper: https://www.semanticscholar.org/paper/04d47572cec08b7a582a9366e5ac61dcfd633f2a

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Control and Systems Engineering

Citations in the corpus

GABAA inhibition controls response gain in visual cortex (2011, methodology): “Stimuli were generated with the Psychophysics Toolbox (Kleiner et al., 2007) and presented monocularly on a calibrated cathode ray tube monitor positioned 57 cm in front of the animal’s eyes (Sony Trinitron 500PS, mean luminance of 32 cd/m 2, refresh rate of 120 Hz).”
Sensory reliability shapes perceptual inference via two mechanisms. (2015, background): “Recently, this problem has been framed within probabilistic Bayesian CI (Knill, 2007; Koerding et al., 2007; Sato, Toyoizumi, & Aihara, 2007; Shams & Beierholm, 2010), where a response during implicit (i.e., in spatial localization) and explicit (i.e., common-source judgments) CI tasks can be…”
How prior expectations shape multisensory perception (2016, methodology): “Stimuli were presented using Psychtoolbox 3.09 (www.psychtoolbox. org; Brainard, 1997; Kleiner et al., 2007) running on Matlab R2010a (MathWorks) and a Macintosh laptop OS X (Version 10.6.8).”
The Notorious Difficulty of Comparing Human and Machine Perception (2020, methodology): “nd data collection was controlled via a desktop computer (Intel Core i5-4460 CPU, AMD Radeon R9 380 GPU) running Ubuntu Linux (16.04 LTS), using the Psychtoolbox Library (Brainard & Vision, 1997; Kleiner et al., 2007; Pelli & Vision, 1997, version 3.0.12) and the iShow library (http://dx.doi”
PsychoPy2: Experiments in behavior made easy (2019, methodology): “…the Components and Flow, it is only a matter of developer resources to expand this capability in order to generate experiments written in languages other than Python — for example, to generate a Psychophysics Toolbox script (Brainard, 1997; Kleiner et al., 2007; Pelli, 1997) in the MATLAB language.”
Changes in behavioral priority influence the accessibility but not the quality of working memory content (2022, methodology): “Stimuli were generated in MATLAB and rendered on a 17’’ Dell CRT monitor cycling at 85 Hz (1024 x 768 pixel resolution) via PsychToolbox-3 software extensions (Kleiner et al., 2007).”
Direct Cochlear Recordings in Humans Show a Theta Rhythmic Modulation of Auditory Nerve Activity by Selective Attention (2022, methodology): “…a previous version (th_ptb; https://gitlab.com/thht/th_ptb) of the Objective Psychophysics Toolbox (o_ptb) (Hartmann and Weisz, 2020), which adds an additional classbased abstraction layer in addition to the Psychophysics Toolbox (version 3.0.14) (Brainard, 1997; Pelli, 1997; Kleiner et al., 2007).”
Fronto-medial theta coordinates posterior maintenance of working memory content (2021, methodology): “, Natick, Massachusetts, United States) and Psychtoolbox (Version 3.0.16; Brainard, 1997; Kleiner et al., 2007).”