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Related Experiment Video

Updated: Dec 6, 2025

A Within-Subject Experimental Design using an Object Location Task in Rats

A Within-Subject Experimental Design using an Object Location Task in Rats

Published on: May 6, 2021

Rats recognize spatial and temporal attributes in a new object recognition memory task with multiple trials.

Ana Paula de Castro Araujo¹, Jalles Dantas de Lucena², Davi Carvalho Drieskens³

¹Memory and Cognition Studies Laboratory, Department of Psychology, Federal University of Paraíba, João Pessoa, PB, Brazil.

Journal of Neuroscience Methods

|October 6, 2020

Summary

This summary is machine-generated.

This study introduces a novel multi-trial object recognition task for rats, enhancing efficiency in memory research. Shorter protocols effectively assess temporal and spatial memory, reducing animal use and data variance.

Keywords:

Behavioral task Episodic-like memory Multiple trials Object recognition memory Rats

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Last Updated: Dec 6, 2025

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Area of Science:

Neuroscience
Cognitive Psychology
Animal Behavior

Background:

Object recognition memory tasks often use one-trial protocols.
Multiple-trial designs can decrease animal numbers and data variance, accelerating data collection.

Purpose of the Study:

To develop a new object recognition memory task for rats using multiple trials per session.
To assess the efficiency of different multi-trial protocols for memory evaluation.

Main Methods:

Devised three continual trial tasks: a longer protocol, a shorter protocol, and a two-day protocol.
Rats performed object exploration tasks over multiple trials within a session.

Main Results:

Rats demonstrated temporal and spatial memory, but not full what-where-when integration.
Shorter multi-trial protocols proved more efficient for evaluating memory capabilities.

Conclusions:

This is the first multi-trial object recognition task assessing temporal and spatial episodic-like memory simultaneously.
The task is suitable for measuring brain functions related to spatial and temporal attributes in rats.