Learning Test Systems

Freeze Monitor

Cued and contextual fear conditioning for rats and mice

SDI’s Freeze Monitor™ is a fully computerized system designed to study “freezing” behavior – the tendency for rodents to remain in a motionless, defensive posture after being shocked. The Freeze Monitor system is designed for both ‘cued’ and ‘contextual’ fear conditioning for rats and mice and offers simultaneous activity recording. The Freeze Monitor has been successfully used in studies of the psychophysiology and psychopharmacology of fear conditioning and for exploring the effects of analgesics and anxiolytics. Using commands that you enter into the ‘stimulus script file’, the Freeze Monitor administers a sequence of stimuli (sound, shock or light) in a sequence determined by the user and records a series of latencies that measure the recovery from shock-induced freezing.

Freeze Monitor System Features

• Examine the psychophysiology and psychopharmacology of fear conditioning
• Explore the effects of analgesics and anxiolytics
• Fully computerized measurement of freezing behavior
• Control up to four chambers from a single PC with individual start per chamber

Freeze Monitor System Components

• Acrylic test enclosure with integrated shocker, cue light and Sonalert acoustic stimulus unit
• Freeze Monitor software
• Stainless steel grid shock floor
• Cables & connectors
• Isolation cabinet (optional)
• Freeze Monitor context enclosure (optional)

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