Source Paper
Information, certainty, and learning
Harris JA, Gallistel CR
eLife • 2026
Magazine Entry Response
behavioralRatSprague Dawley
Objective: To measure conditioned magazine entry responses during CS presentation and identify when responding first appears
Materials & Equipment Checklist
6 items
Protocol Steps
1
Skip magazine training
Begin experiment without preliminary magazine training
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“The rats were not given magazine training”
2
Conduct conditioning sessions
Run 42 conditioning sessions over 42 consecutive days with CS-US pairings
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“experiment commenced with the first conditioning session and continued for 42 sessions over 42 consecutive days”
3
Vary CS-US intervals
Present CS-US intervals that vary according to uniform distribution centered on T value
View evidence from paper
“CS-US interval varied from trial-to-trial according to a uniform distribution centred on the value of T”
4
Record magazine entries
Record photo-beam interruptions during CS and ITI periods automatically
View evidence from paper
“Photo-beam interruptions by entry into the magazine were recorded during each CS and each ITI”
5
Monitor ITI responses
Record responses during 10 second period before CS onset
View evidence from paper
“recorded during the 10 s period immediately before CS onset”