Early-life object exposure with a habituated mother reduces fear reactions in foals.

The research investigates whether exposing young horses, or foals, to potentially fear-inducing objects in the presence of their acclimated mothers can decrease their fear responses. The study suggests that this method can effectively reduce fearfulness in foals at both 8 weeks and 5 months of age.

Study Design and Procedure

• This study centered on the notion that a foal’s mother can significantly influence its behavior. Accordingly, the researchers habituated mares (adult female horses) to particular situations that are generally fear-inducing before they gave birth. This involved familiarizing the mares with a variety of new stationary and moving objects.
• After the mares gave birth, the foals were grouped randomly into the Demonstration group (11 foals) or the Control group (11 foals). The mothers in the Demonstration group were tasked with displaying their lack of fear towards the objects to their foals. This demonstration occurred once a week for the first eight weeks after birth.
• Conversely, the Control group mares spent the same amount of time inside an empty test arena with their foals but were not exposed to the objects.

Testing and Results

• The researchers tested the foals’ fear responses at eight weeks and five months old using four standard fear tests.
• Foals from the Demonstration group displayed considerably reduced fear responses, as indicated by their behavior and heart rates. These foals also exhibited increased exploratory behavior at both tested ages.
• The findings suggest that this effect of reduced fearfulness was likely achieved through a mixture of learning from their mothers and personal experience. The researchers concluded that a foal’s fear response can effectively be reduced by exposing them to frightening objects with their acclimated mothers during the first eight weeks of life.