YLS-17B passive avoidance shuttle tester I. Overview of internal psychological process of human and animal activity can not be directly observed, scientists can only be based on observable stimulus-response processes in the brain occur to speculate on the brain and memory processes After studying only to learn or perform a task by humans or animals, a certain time interval, measuring their operating results or reaction time to measure the encoded form of these processes, storage capacity, retention time, and they depend on the conditions and so on. Learning and memory test method is based on the conditioned reflex, a variety of methods are thus derived from the shuttle passive avoidance test is one of a more commonly used method. The advantage of this method is simple, can observe the effects of drugs on memory processes can also be observed effects on academic performance, high sensitivity, especially suitable for drug screening. YLS-17B passive avoidance test instrument is a shuttle, do avoid the dark experiment, experiment or anxiety shuttle experiment a machine economical and practical instruments. Optional large instrument, two experimental mice box, bigger, mouse passive avoidance test, shuttle test, test anxiety. The instrument has LCD, easy to set, counting is accurate, visually, compact structure, easy maintenance, use of safety features, for research and educational use, a variety of Zengzhi brain, improve memory, anti-aging medicine and health products screening, developed an indispensable tool. Second, the technical indicators passive avoidance test setup parameters required: Determination of the number of channels: 1-2 current mode: avoid dark passive avoidance measurement time: 600 minutes in steps of 1 minute to adjust the clock setting item: year, month, day , hours, minutes, seconds, electric gate voltage adjustment range: 30V ~ 120V (square wave peak), adjust the step size 1V; electric gate limiting adjustment range: 0.06mA ~ 4.00mA, adjust the length of 0.02 mA steps needed to set parameters shuttle experiment : Determination of the number of channels: 1-2 Current Mode: Shuttle Shuttle warning signal: lighting, sound, sound + light warning signal delay: 2-60 sec delay shuttle electric shock: 2-60 second shuttle test cycle: 10-600 seconds shuttle Views: 4-255 times the shuttle set the test time: up to 42.5 hours (period × number of times) the shortest 40 seconds (period × number) Clock Setting item: year, month, day, hour, minute, second electric gate voltage adjustment range : 30V ~ 120V (square wave peak), adjust the step size 1V; electric gate limiting adjustment range: 0.06mA ~ 4.00mA, adjust the step size 0.02 mA short circuit alarm comes with micro-printer, the data printing function with a computer interface, You can import the data into the computer main dimensions: 320 × 320 × 140mm Weight: avoid dark shuttle box size (four rooms, each room 190 × 190 × 120mm) 4.25kg mouse weight: 10kg rat passive avoidance shuttle box size (two Room, 300 × 300 × per room 200mm) Weight: 15kg passive avoidance shuttle box is split from top to bottom for easy cleaning and maintenance input voltage: AC, 210V ~ 230V 50Hz Power consumption: 30W