Using kinetic contours derived from everyday objects, we investigated how motion affects object identification. In order not to be distinguishable when static, kinetic contours were made from random dot displays consisting of two regions, inside and outside the object contour. In Experiment 1, the dots were moving in only one of two regions. The objects were identified nearly equally well as soon as the dots either in the figure or in the background started to move. RTs decreased with increasing motion coherence levels and were shorter for complex, less compact objects than for simple, more compact objects. In Experiment 2, objects could be identified when the dots were moving both in the figure and in the background with speed and direction differences between the two. A linear increase in either the speed difference or the direction difference caused a linear decrease in RT for correct identification. In addition, the combination of speed and motion differences appeared to be super-additive.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.visres.2008.11.012 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
CFD analysis of heat transfer enhancement in impinging jet array by varying number of jets and spacing.
Sci Rep
January 2025
Thermal and Energetic Systems Studies Laboratory (LESTE), LR99ES31, College of Engineering, University of Monastir, 5000, Monastir, Tunisia.
Using the RANS approach with the standard k-ω turbulence model, this study offers a novel investigation into the dynamic and thermal properties of turbulent impinging jet arrays. Our study examines the combined effect of the number of jets (N) and the jet-jet spacing (S) on flow mechanisms and heat transfer performance, which is unique compared to previous research that frequently focuses on the individual effects of parameters. Through the investigation of the turbulent kinetic energy, friction coefficient, velocity contours, streamlines, pressure contours, and local and mean Nusselt numbers, we provide important information about how these parameters impact flow dynamics.
View Article and Find Full Text PDFKinetics of Macroion Adsorption on Silica: Complementary Theoretical and Experimental Investigations for Poly-l-arginine.
Langmuir
January 2025
Department of Chemical Engineering, Technion-IIT, Haifa 32000, Israel.
A comprehensive approach enabling a quantitative interpretation of poly-l-arginine (PARG) adsorption kinetics at solid/electrolyte interfaces was developed. The first step involved all-atom molecular dynamics (MD) modeling of physicochemical characteristics yielding PARG molecule conformations, its contour length, and the cross-section area. It was also shown that PARG molecules, even in concentrated electrolyte solutions (100 mM NaCl), assume a largely elongated shape with an aspect ratio of 36.
View Article and Find Full Text PDFAbsolute line strength measurements of hydroperoxyl (HO2) radical in the OO-stretching (ν3) fundamental band have been performed by means of mid-infrared time-resolved dual-comb spectroscopy. By employing two sets of dual-comb spectrometers, high-resolution time-resolved spectra of HO2 and HCl, formed in the photolysis reaction system of Cl2/CH3OH/O2, could be, respectively, measured near 1123 and 3059 cm-1. With kinetic simulations, spectral analysis of both HO2 and HCl, as well as the accurate line strength of the HCl R(9) transition at 3059.
View Article and Find Full Text PDFSynergist effect of thermosonication and NaCl on inactivation of Staphylococcus aureus and Shigella flexneri in lettuce: The effect of acoustic field and reaction kinetics.
Ultrason Sonochem
January 2025
Department of Food Science and Technology, Faculty of Agriculture, Science and Research Branch, Islamic Azad University of Tehran, Tehran, Iran.
Article Synopsis
- - The study explored how thermosonication (TS) and sodium chloride (NaCl) affect the inactivation of bacteria Staphylococcus aureus and Shigella flexneri in lettuce, using different temperatures and durations.
- - Results found that increasing temperature (particularly at 60 °C) significantly enhanced bacterial inactivation compared to NaCl alone, with TS being more effective overall.
- - Thermosonication reduced bacteria counts by substantial amounts (5.1 to 7.4 log CFU/g), but there was no clear link between entropy change and the bacteria types, and NaCl-treated samples showed higher energy absorption.
Structure based release kinetics analysis of doxazosin mesylate sustained-release tablets using micro-computed tomography.
Asian J Pharm Sci
December 2024
NMPA Key Laboratory for Quality Research and Evaluation of Chemical Drugs, National Institutes for Food and Drug Control, Beijing 100050, China.
The structures of solid dosage forms determine their release behaviors and are critical attributes for the design and evaluation of the solid dosage forms. Here, the 3D structures of doxazosin mesylate sustained-release tablets were parallelly assessed by micro-computed tomography (micro-CT). There were no significant differences observed in the release profiles between the RLD and the generic formulation in the conventional dissolution, but the generic preparation released slightly faster in media with ethanol during an alcohol-induced dose-dumping test.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!