Part, III: Increasing odor detection performance after training with progressively leaner schedules of odor...

Area of Science:

• Canine behavior and olfaction
• Animal training methodologies
• Search and rescue operations

Background:

• Canine search performance declines with infrequent target odors.
• Existing training methods may not adequately prepare dogs for low-prevalence operational contexts.

Purpose of the Study:

• To evaluate if progressively leaner target odor schedules improve canine performance in low-prevalence contexts.
• To determine the efficacy of explicit training for infrequent target detection in dogs.

Main Methods:

• Experiment 1: Compared control dogs (90% prevalence training) with experimental dogs (progressively decreased prevalence training to 20%) under 10% prevalence testing.
• Experiment 2: Re-challenged dogs with 10%, 5%, and 0% target frequencies after control (90% training) and experimental (90% to 20% training) phases.

Main Results:

• Experimental dogs showed higher accuracy, hit percentage, and shorter search latency in low-prevalence contexts (Experiment 1).
• Experimental dogs significantly outperformed control dogs in accuracy across multiple low-prevalence tests (Experiment 2: 93% vs. 82%).

Conclusions:

• Explicit training using progressively leaner target odor schedules effectively maintains and improves canine search performance in low-prevalence environments.
• This training approach is crucial for optimizing canine effectiveness in operational settings with infrequent target odors.