Cue use by foals (Equus caballus) in a discrimination learning task.

The research article investigates how foals (young horses) use different cues to locate food in a learning task. The study found that spatial cues—information about an object’s location—were more effective for the foals than object-specific (OS) cues, such as patterns or shapes.

Research Methodology

• The researchers started with nine foals who were taught to find food hidden in one of three buckets placed in different positions within a test area.
• Initially, the rewarded bucket was marked both by OS cues (patterns) and spatial cues (position). Upon reaching a certain level of proficiency, the cues were separated to test the foals’ ability to ignore irrelevant cues.
• The foals were divided into two groups. One group had to follow spatial cues (n = 5), while the other group had to adhere to OS cues (n = 4).

Key Findings

• The group of foals guided by spatial cues completed this second stage faster than the group that had to stick with OS cues.
• All foals in the spatial group were able to reach proficiency without delay; none in the OS group could reach proficiency within the testing timeframe.
• The OS group foals initially persisted in responding to the previously correct position, and started using spatially-based strategies when their initial approach was unsuccessful.

Implications and Conclusions

• The study revealed that foals found spatial cues more significant than OS cues for locating food in a task, even when no distal (in the distance) spatial information was provided.
• The findings also suggested that learning in foals appeared to be rather inflexible, as they stuck with strategies that proved unsuccessful longer than expected.
• This research contributes valuable insights to our understanding of cue use in horses, which could potentially be applicable to other animals and even human infants, given further research.