Distance judgments under different size-information conditions

Judgments Under Simulated Visual Space Conditions

1987 SUMMARY Thirty-jive volunteers responded when they first perceived an increase in apparent size o f a collimated, two-dimensional image of an Orbiter vehicle. The test variables of interest included the presence o f afixed angular reticle within the field of view (FOV); three initial Orbiter distances; three constant Orbiter approach velocities corresponding to 1.6, 0.8, and 0.4% of the in...

A Variety of Size and Distance Judgments under Monocular Observation: Instructions and Individual Differences

Aggregate Size Distribution Indices Influenced by Different Types/Managements of Plant Residues under Field Conditions

1- INTRODUCTION Nowadays, environmental aspects of soil erosion are specifically considered by researchers. In this regard, secondary (aggregate) particle size distribution (SPSD) is so important in different issues such as nutrient loss, pollutant transport and carbon cycle. Aggregate size distribution is known as the representative of soil structure, which is by itself regarded as a dynami...

Similarity and Difference Judgments Under Perceptual and Non-Perceptual Conditions

It has recently been suggested that knowledge is represented in the form of perceptual symbol systems (Barsalou, 1999). According to this view, perceptual states may be used to support higher cognitive processes without being transduced into a representational language. Since the ability to recognize difference and similarity is fundamental for cognition, we examined to what extent it might be ...

Halo size under distance and near conditions in refractive multifocal intraocular lenses.

AIMS To calculate the diameter of halos perceived by patients with multifocal intraocular lenses (IOLs) and to stimulate halos in patients with refractive multifocal IOLs in a clinical experiment. METHODS Calculations were done to show the diameter of halos in the case of the bifocal intraocular lens. 24 patients with a refractive multifocal IOLs and five patients with a monofocal IOL were as...