scholarly journals Dual-angle open field wavefront sensor for simultaneous measurements of the central and peripheral human eye

2020 ◽  
Vol 11 (6) ◽  
pp. 3125
Author(s):  
Dmitry Romashchenko ◽  
Linda Lundström
Keyword(s):  
Open Field ◽  
Wavefront Sensor ◽  
Human Eye ◽  
Simultaneous Measurements ◽  
Dual Angle

Hartmann-Shack wavefront sensor for the human eye aberration

2005 ◽  
Author(s):  
Ning Ling ◽  
Xuejun Rao ◽  
Cheng Wang ◽  
Xiang Yu ◽  
Yiyun Hu ◽  
...  
Keyword(s):  
Wavefront Sensor ◽  
Human Eye

scholarly journals A wavelength tunable wavefront sensor for the human eye

2008 ◽  
Vol 16 (11) ◽  
pp. 7748 ◽  
Author(s):  
Silvestre Manzanera ◽  
Carmen Canovas ◽  
Pedro M. Prieto ◽  
Pablo Artal
Keyword(s):  
Wavefront Sensor ◽  
Human Eye ◽  
Wavelength Tunable

Measurement of human eye aberrations using an optical simulator based on pyramid wavefront sensor

2020 ◽  
Author(s):  
Chaoyan Wang ◽  
Xinyang Chen ◽  
Zheng Zheng ◽  
Zhaohui Bu ◽  
Jianqing Cai ◽  
...  
Keyword(s):  
Wavefront Sensor ◽  
Human Eye

Custom-oriented wavefront sensor for human eye properties measurements

2005 ◽  
Author(s):  
Sergey Galetskiy ◽  
Renat Letfullin ◽  
Alex Dubinin ◽  
Tatyana Cherezova ◽  
Alexey Belyakov ◽  
...  
Keyword(s):  
Wavefront Sensor ◽  
Human Eye

A New System For Optomanual Semiautomatic Quantitative Image Analysis

1977 ◽  
Vol 35 ◽  
pp. 210-211
Author(s):  
H.P. Rohr
Keyword(s):  
Image Analysis ◽  
Volume Density ◽  
List Type ◽  
Distribution Analysis ◽  
Type Number ◽  
Point Counting ◽  
Human Eye ◽  
Quantitative Image ◽  
Point Density ◽  
Electronic Counting

Today, in image analysis the broadest possible rationalization and economization have become desirable. Basically, there are two approaches for image analysis: The image analysis through the so-called scanning methods which are usually performed without the human eye and the systems of optical semiautomatic analysis completely relying on the human eye.The new MOP AM 01 opto-manual system (fig.) represents one of the very promising approaches in this field. The instrument consists of an electronic counting and storing unit, which incorporates a microprocessor and a keyboard for choice of measuring parameters, well designed for easy use.Using the MOP AM 01 there are three possibilities of image analysis:the manual point counting,the opto-manual point counting andthe measurement of absolute areas and/or length (size distribution analysis included).To determine a point density for the calculation of the corresponding volume density the intercepts lying within the structure are scanned with the light pen.

Chemically Contaminated Eel Fed to Pregnant and Lactating Mouse Dams Causes Hyperactivity in Their Offspring

2016 ◽  
Vol 86 (1-2) ◽  
pp. 36-47 ◽  
Author(s):  
Imen Dridi ◽  
Nidhal Soualeh ◽  
Torsten Bohn ◽  
Rachid Soulimani ◽  
Jaouad Bouayed
Keyword(s):  
Open Field ◽  
Early Life ◽  
Home Cage ◽  
Anguilla Anguilla ◽  
Acetylcholinesterase Activity ◽  
Female Offspring ◽  
Significant Inhibition ◽  
Standard Diet ◽  
Early Life Exposure ◽  
Cage Test

Abstract.This study examined whether perinatal exposure to polluted eels (Anguilla anguilla L.) induces changes in the locomotor activity of offspring mice across lifespan (post-natal days (PNDs) 47 – 329), using the open field and the home cage activity tests. Dams were exposed during gestation and lactation, through diets enriched in eels naturally contaminated with pollutants including PCBs. Analysis of the eel muscle focused on the six non-dioxin-like (NDL) indicator PCBs (Σ6 NDL-PCBs: 28, 52, 101, 138, 153 and 180). Four groups of dams (n = 10 per group) received either a standard diet without eels or eels (0.8 mg/kg/day) containing 85, 216, or 400 ng/kg/day of ϵ6 NDL-PCBs. The open field test showed that early-life exposure to polluted eels increased locomotion in female offspring of exposed dams but not in males, compared to controls. This hyperlocomotion appeared later in life, at PNDs 195 and 329 (up to 32 % increase, p < 0.05). In addition, overactivity was observed in the home cage test at PND 305: exposed offspring females showed a faster overall locomotion speed (3.6 – 4.2 cm/s) than controls (2.9 cm/s, p <0.05); again, males remained unaffected. Covered distances in the home cage test were only elevated significantly in offspring females exposed to highest PCB concentrations (3411 ± 590 cm vs. 1377 ± 114 cm, p < 0.001). These results suggest that early-life exposure to polluted eels containing dietary contaminants including PCBs caused late, persistent and gender-dependent neurobehavioral hyperactive effects in offspring mice. Furthermore, female hyperactivity was associated with a significant inhibition of acetylcholinesterase activity in the hippocampus and the prefrontal cortex.

Development of an Automated Open Field for Examining Cognitive Processes in Pigeons

2007 ◽  
Author(s):  
Kenneth J. Leising ◽  
Michael Parenteau ◽  
Dennis Garlick ◽  
Aaron P. Blaisdell
Keyword(s):  
Open Field ◽  
Cognitive Processes
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