ZH-CSC Shuttle Experiment Video Analysis System

Introduction:

The ZH-CSC Shuttle box video analysis system (Quantitative measurement of animal behavior changes) belongs to the classic joint learning conditioned reflex. Animals can avoid harmful stimuli through learning. The bottom is a stainless steel grid. Electric current and unconditional stimulation are used to shock the soles of the animals. The top is equipped with a noise generator for generating conditioned stimuli. Shock after several seconds of conditioned stimulation. If the rat escapes to the safe zone during the safe interval of the ringtone stimulation, it is an active avoidance response; if the rat does not escape to the safe zone during the safe interval of the stimulus stimulation, then the passive escape is performed if the rat escapes to the safe zone after AC shock. The reaction is positive, otherwise it is negative for active and passive avoidance reactions. This is a cycle. After repeated training, only the conditioned stimulus, the rats fled to the contralateral safety zone to avoid electric shock, which formed a conditioned reflex or active avoidance response. The computer automatic control system could record relevant animal action parameters. Active avoidance time refers to the length of time that an animal receives a conditioned stimulus. The shorter the value, the faster the animal's active avoidance response and the stronger its learning and memory ability.

This experiment is widely used in experimental research in learning and memory function, cognitive neuroscience, neurophysiology, neuropharmacology, cognitive function degenerative degeneration, etc. It is simple, easy to operate, easy to discern results, and highly reliable. It provides subject parameters as detection experiments, and can also be used as an auxiliary or pre-screening experiment for other learning and memory and cognitive function experiments.

Features:

1. The hardware system adopts embedded single-chip microcomputer as the main control core, experiment constant current and constant voltage stimulation

2. Sound delay, voltage and current are set directly by software.

Square wave signal with adjustable peaks on each electrode

3.Each electrode adopts cyclic shift pulse stimulation method to make the current of the animal to be a constant value. Compared with the traditional fixed electrode stimulation, it avoids the disadvantage that the animal cannot be stimulated because it stands on the same electrode.

4. All signals in this system use USB interface

5. This stimulation system is suitable for animals of different sizes

Analysis indicators

First correct latency

Total correct latency

Number of active evasion

First error latency Total error latency

Passive Evasion

Number of errors

Technical Parameters:

Shuttle box dimensions: 700 × 260 × 430mm

Internal size of single box: 250 × 185 × 300mm

Input voltage: AC220V

Electric grid current limit adjustment range: 0.04 ~ 3.5mA, adjustment step size is 0.02mA, current error is less than 0.04mA, can be set arbitrarily according to needs The stimulus sound is delayed from 0-255 seconds.

Electric grid voltage adjustment range: 30 ~ 120V (square wave peak), the adjustment step is 1V, the peak voltage error is less than 5%

The square wave stimulation frequency on each grid is 96Hz, with an error of 1%