Source Paper
Information, certainty, and learning
Harris JA, Gallistel CR
eLife • 2026
Magazine Entry Recording
behavioralRatSprague Dawley
Objective: Recording photo-beam interruptions by entry into the magazine during conditioning sessions to measure conditioned responding
Materials & Equipment Checklist
6 items
Protocol Steps
1
Setup infrared detection system
Position infrared LED and sensor inside the food magazine to detect rat entries
View evidence from paper
“infrared LED and sensor located just inside the magazine to record entries”
2
Record magazine entries during CS presentation
Automatically record photo-beam interruptions when rats enter the magazine during conditioned stimulus presentations
View evidence from paper
“Photo-beam interruptions by entry into the magazine were recorded during each CS”
3
Record magazine entries during ITI
Record photo-beam interruptions during the 10-second period immediately before CS onset
View evidence from paper
“recorded during each ITI (recorded during the 10 s period immediately before CS onset)”
4
Automatic data collection
Use computers and relays to automatically control experimental events and record magazine entry data
View evidence from paper
“Experimental events were controlled and recorded automatically by computers and relays”