The dark-room test.

بررسی اثرعصاره هیدروالکلی سماق (Rhus coriaria L.) بر بروز یادگیری اجتنابی غیرفعال در موش‌های صحرایی نرگنادکتومی شده

Introduction: Learning and memory is characteristically human to survive; reducing sexual hormones in aging and the side effects of chemical drugs are factors that can cause memory and learning disruption. In this study the effect of hydroalchoholic extract sumac (Rhus coriaria L.) on expression passive avoidance learning in gonadectomized male rats was studied. Methods: In this experimental s...

Agreement between gonioscopy and ultrasound biomicroscopy in detecting iridotrabecular apposition.

OBJECTIVE To assess the agreement between findings obtained at dark-room gonioscopy and ultrasound biomicroscopy (UBM) in the diagnosis of iridotrabecular apposition in light and dark conditions. METHODS We enrolled patients with appositional angle closure at dark-room gonioscopy performed using a 1-mm slitlamp beam that did not cross the pupil. Ultrasound biomicroscopic images were acquired ...

ارزیابی‌ نقش‌ قشر اوربیتوفرونتال‌ در فرایند حافظه‌ فضایی‌ در موقعیت‌ تاریک‌ و روشن‌ درمدل ‌یادگیری‌ احترازی‌ مکانی‌ در موش‌ آزمایشگاهی

Background : Evidence indicates that the orbitofrontal cortex (OFC) in the brain is probably invoemotional learning. The aim of the present study is to evaluate the role of OFC on spatial memory in dark and light area in rotation arena in place avoidance learning model. Material and methods : Long-Evans strain rats (280-300gr) were surgically implanted bilaterlved in ally with cannulae aimed at...

Computer Vision for Real-time Relative Navigation with a Non-cooperative and Spinning Target Spacecraft

Relative navigation for spacecraft has received a great attention recently because of its importance for space applications. Many space missions require accurate relative position knowledge between space vehicles. This paper proposes a vision-based relative navigation system only based on stereo gray-scale camera. An effective Image processing algorithms was developed for estimating the relativ...

Changes in intraocular pressure during and after the dark-room test.