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Related Experiment Video

Updated: Oct 4, 2025

An Appetitive Spatial Working Memory Task for Mice in a Semi-Automated 8-Arm Radial Maze, Reducing Fearful Memory Association in the Maze

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Orangutan strategies for solving a visuospatial memory task.

Christopher F Martin¹, Robert W Shumaker¹

¹The Indianapolis Zoo, Indianapolis, Indiana, USA.

American Journal of Primatology

|February 8, 2022

Summary

Orangutans played a modified Memory game to test visuospatial memory. While some learned optimal strategies, they didn't fully utilize memory to minimize card flips.

Keywords:

Concentration Game cognitive flexibility orangutans visuospatial memory

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Last Updated: Oct 4, 2025

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The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents

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Published on: July 8, 2015

Area of Science:

Primate Cognition
Animal Behavior
Visuospatial Memory

Background:

The Concentration (Memory) game offers a nonverbal method for assessing visuospatial memory.
Orangutans (Pongo ssp.) are known for their cognitive abilities, making them suitable subjects for memory research.

Purpose of the Study:

To evaluate orangutans' capacity to memorize and strategically use visuospatial cues in a modified Concentration game.
To determine if orangutans could adopt an optimal strategy to solve the task efficiently.

Main Methods:

Five orangutans participated in a computer-based Concentration game with three cards (two matching, one foil).
An experimental constraint ensured the first two cards selected never matched, necessitating a specific optimal strategy.
Trials were rewarded with food for correct matches; incorrect matches reset the cards.

Main Results:

Three out of five orangutans employed the optimal strategy more frequently than random chance.
Participants tended to overuse certain choice patterns rather than adapting strategies to reduce card flips.
Visuospatial recall influenced strategies but was insufficient for consistently optimal gameplay.

Conclusions:

Orangutans demonstrate an ability to learn and apply aspects of optimal strategy in a visuospatial task.
While visuospatial memory plays a role, orangutans did not fully leverage it for maximum efficiency in this game.
Further research could explore factors influencing strategy optimization in primates.