Garrano Horses Perceive Letters of the Alphabet on a Touchscreen System: A Pilot Study.
Authors: Schubert Clara-Lynn, Ryckewaert Barbara, Pereira Carlos, Matsuzawa Tetsuro
Journal: Animals : an open access journal from MDPI
Summary
# Editorial Summary: Visual Letter Recognition in Garrano Horses Researchers investigating cognitive perception in the endangered Garrano breed employed a touchscreen discrimination task to examine how five horses visually process alphabetic characters. The five horses, maintained in a semi-free enclosure in northern Portugal, were trained to nose-touch black circles on screen before progressing to discrimination trials involving five Latin letters (O, B, V, Z, X) in Arial font. A multidimensional scaling analysis revealed that horses discriminated letters primarily along a dimension contrasting curved versus straight-lined shapes—a perceptual categorisation that mirrors patterns documented in humans and other species across different ecological contexts. Notably, the automated touchscreen system allowed horses complete freedom of movement within their social group whilst collecting objective cognitive data, thereby integrating rigorous scientific methodology with improved welfare conditions. For equine professionals, these findings suggest horses possess sophisticated visual-cognitive abilities relevant to training approaches and environmental enrichment, whilst the touchscreen methodology offers a replicable tool for assessing perception and cognition in working or captive populations without constraint or restraint.
Read the full abstract on PubMed
Practical Takeaways
- •Touchscreen-based cognitive testing offers objective, automated methods for assessing equine visual perception and learning without constraining horses in traditional laboratory settings
- •Understanding that horses discriminate visual stimuli based on geometric shape features (curves vs. lines) may inform design of stable signage, visual training aids, and environmental enrichment
- •This methodology demonstrates potential welfare benefits for captive horses by providing cognitive stimulation and enrichment while collecting scientific data
Key Findings
- •Five Garrano horses successfully learned to discriminate letters on a touchscreen system through nose-touch training
- •Horses perceived letters based on shape features, distinguishing curved letters from those with straight lines
- •Perceptual discrimination patterns in horses share similarities with visual perception in humans and other animals
- •Touchscreen system proved effective for objective cognitive testing while allowing freedom of movement in semi-free enclosures