Intrinsic exploration in animals: motives and measurement

Area of Science:

• Animal Behavior
• Exploratory Motivation

Background:

• Intrinsic exploration is driven by acts not tied to external goals.
• Existing theories (exploratory drive, arousal, fear) lack comprehensive explanatory power.
• Organisms may possess an innate "need" for sensory change, fulfilled by intrinsic exploration.

Purpose of the Study:

• To review and evaluate methods for measuring intrinsic exploration in laboratory settings.
• To highlight the limitations of current theoretical frameworks.
• To advocate for preferred methodologies in studying exploratory behavior.

Main Methods:

• Distinction between forced and free laboratory tests for measuring exploration.
• Forced tests: recording locomotion in novel environments.
• Free tests: measuring active choices among varying novelty levels, including object exploration and novelty-related location preferences.

Main Results:

• No single theory adequately explains the motivation behind intrinsic exploration.
• Free exploration tests are deemed more reliable than forced tests.
• Novelty-related location preferences and object exploration are considered valid measures of intrinsic exploration.

Conclusions:

• Intrinsic exploration is fundamentally linked to an organism's need for sensory change.
• Free exploration tests provide more accurate assessments of intrinsic exploratory behavior.
• Further research should focus on refining free exploration paradigms to better understand this innate drive.