Factors influencing perceived angular velocity

Motion fading is driven by perceived, not actual angular velocity

After prolonged viewing of a slowly drifting or rotating pattern under strict fixation, the pattern appears to slow down and then momentarily stop. Here we examine the relationship between such 'motion fading' and perceived angular velocity. Using several different dot patterns that generate emergent virtual contours, we demonstrate that whenever there is a difference in the perceived angular v...

Title: Factors Influencing Consumers' Perceived Risk Of Tobacco Products.

ISPOR 18th Annual European Congress; 7-11 November 2015. Milan, Italy. The tobacco industry is developing candidate modified risk tobacco products (cMRTPs) with the potential to reduce individual risk and population harm in comparison to smoking combustible cigarettes. In 2012, the United States (US) Food and Drug Administration (FDA) released its Draft Guidance on MRTPs requesting applicants t...

Exploring Factors Influencing Perceived Quality on Sportswear Fabric

Factors influencing velocity coding in the human visual system.

Differential velocity detection in the fovea was measured over a wide range of velocities (0.25-256 degrees/sec). Differential thresholds were minimum (about 6%) for intermediate velocities (4-32 degrees/sec). Velocity judgements were shown not to depend on duration judgments. The U-shaped curve relating differential velocity detection and velocity was preserved at different background levels a...

Angular Declination and Perceived Distance

In two experiments involving a total of 83 participants, the effect of a vertical angular optical compression on the perceived distance and size of a target on the ground was investigated. Replicating an earlier report (Wallach & O’Leary, 1982), reducing the apparent angular declination below the horizon produced apparent object width increases (by 33%) consistent with the perception of a great...