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Assessing Classical Olfactory Fear Conditioning by Behavioral Freezing in Mice.

Bio-protocol (2018-09-20)
Jordan M Ross, Max L Fletcher
ABSTRACT

Classical fear conditioning typically involves pairing a discrete cue with a foot shock. Quantifying behavioral freezing to the learned cue is a crucial assay for neuroscience studies focused on learning and memory. Many paradigms utilize discrete stimuli such as tones; however, given mice are odor-driven animals and the wide variety of odorants commercially available, using odors as conditioned stimuli presents advantages for studies involving learning. Here, we describe detailed procedures for assembling systems for presenting discrete odor cues during single-day fear conditioning and subsequent analysis of freezing behavior to assess learning.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Ethyl valerate, 99%
Sigma-Aldrich
Mineral oil, BioReagent, for molecular biology, light oil