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Related Experiment Video

Updated: Jun 6, 2025

Assessment of Social Cognition in Non-human Primates Using a Network of Computerized Automated Learning Device ALDM Test Systems

Assessment of Social Cognition in Non-human Primates Using a Network of Computerized Automated Learning Device ALDM Test Systems

Published on: May 5, 2015

Audience presence influences cognitive task performance in chimpanzees.

Christen Lin¹, Akiho Muramatsu^2,3,4, Shinya Yamamoto^1,3

¹Wildlife Research Center, Kyoto University, Kyoto 606-8203, Japan.

|December 2, 2024

Summary

Audience presence impacts chimpanzee cognitive performance, with effects varying by task difficulty and audience type. This suggests evolutionary roots of audience effects predate human reputation societies.

Keywords:

Behavioral neuroscience Cognitive neuroscience Neuroscience

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Area of Science:

Comparative psychology
Primatology
Cognitive science

Background:

Audience effects influence human cognitive performance, often linked to reputation management.
The extent to which non-human animals experience audience effects is not well understood.

Purpose of the Study:

To investigate audience effects on cognitive performance in chimpanzees.
To explore how audience composition influences task performance in a non-human primate model.

Main Methods:

Six chimpanzees participated in numerical touchscreen tasks over six years.
Tasks varied in difficulty and cognitive demand.
Audience composition (number and type of individuals present) was systematically varied.

Main Results:

Chimpanzee performance was significantly influenced by audience presence.
Performance on difficult tasks improved with increased experimenter presence.
Performance on easy tasks declined with increased familiar audience and experimenter presence.

Conclusions:

Audience effects on cognitive processing are present in chimpanzees.
These findings suggest the evolutionary origins of audience effects may predate human normative societies.