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Related Experiment Video

Updated: Jun 8, 2026

Utilizing vmTracking to Improve the Accuracy of Multi-Animal Pose Estimation in Rodent Social Behavior Studies

Utilizing vmTracking to Improve the Accuracy of Multi-Animal Pose Estimation in Rodent Social Behavior Studies

Published on: November 7, 2025

Direction information in multiple object tracking is limited by a graded resource.

Todd S Horowitz¹, Michael A Cohen

¹Visual Attention Laboratory, Brigham and Women's Hospital, Boston, Massachusetts 02139, USA. toddh@search.bwh.harvard.edu

Attention, Perception & Psychophysics

|October 19, 2010

Summary

Multiple object tracking (MOT) is not limited by fixed slots, but by a continuously divisible resource. Precision decreases with tracking load, following a square-root law, indicating a flexible resource limitation.

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Last Updated: Jun 8, 2026

Utilizing vmTracking to Improve the Accuracy of Multi-Animal Pose Estimation in Rodent Social Behavior Studies

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Area of Science:

Cognitive Psychology
Visual Perception
Human Factors

Background:

The cognitive limits of multiple object tracking (MOT) are debated.
Models propose limitations by fixed 'slots' or a divisible resource.

Purpose of the Study:

To investigate whether MOT is constrained by fixed slots or a divisible resource.
To determine the nature of resource limitation in tracking multiple moving objects.

Main Methods:

Two experiments involved observers tracking multiple moving disks.
Target direction precision was measured using a probe arrow and mixture distribution analysis.
Precision was analyzed as a function of tracking load.

Main Results:

Target representation precision decreased with increasing target load.
This decline followed a square-root relationship up to six targets.
Findings contradicted fixed slot and hybrid slot models.

Conclusions:

Directional information in MOT is limited by a continuously divisible resource.
The results support a resource-based limitation rather than discrete structural limitations.