Sacking out
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{{unreferenced, date=July 2009 Sacking out is a method used by
horse trainer A horse trainer is a person who tends to horses and teaches them different disciplines. Some of the responsibilities trainers have are caring for the animals' physical needs, as well as teaching them submissive behaviors and/or coaching them for e ...
s to desensitize a
horse The horse (''Equus ferus caballus'') is a domesticated, one-toed, hoofed mammal. It belongs to the taxonomic family Equidae and is one of two extant subspecies of ''Equus ferus''. The horse has evolved over the past 45 to 55 million y ...
to potentially frightening situations or objects. It is a process that, done properly, teaches a horse to not fear certain objects or situations, and, over time can be used to teach a horse to stop and listen to its handler in any potentially frightening situation, thus, in effect, to assess the situation instead of immediately acting upon its fight or flight instinct. An example of the need for desensitizing training is when an object, such as a plastic bag, suddenly blows across the path of horse and rider, which, if the horse has not been properly desensitized, could result in spooking. Spooking is potentially dangerous, as it can result in fallen riders or horses bolting into danger. Another example would be the need to desensitize a horse to the sound of traffic, music, loudspeakers and other stimuli seen at public events. In some cases, a previous bad experience may have given a horse reason to fear a specific situation, requiring a form of
systematic desensitization Systematic desensitization, or graduated exposure therapy, is a behavior therapy developed by the psychiatrist Joseph Wolpe. It is used when a phobia or anxiety disorder is maintained by classical conditioning. It shares the same elements of both c ...
to gradually overcome its fear. A typical method to desensitize the horse to things like plastic bags is to begin in a step by step process with a mildly worrisome object, such as a towel or blanket. A handler reduces the animal's wariness of a strange object by showing it to the horse in increasingly vigorous ways, first by simply allowing the animal to sniff it, then to touch or rub it gently over the animal until it shows no sign of fear, then, ultimately to flap it and wave it about. Through multiple sessions, the horse will first become accustomed to a specific object, then, as the horse is introduced to additional stimuli, including large blankets, plastic bags and other potentially frightening but harmless objects, the animal learns to not fear items that a human handler presents to it. Because it is impossible to desensitize a horse to every possible source of fear, the ultimate goal is to teach the horse to trust the judgement of its human handler and not react with fright to an unknown stimulus but rather to wait and listen to its handler. By teaching the horse that certain scary objects will not cause it harm, it also learns that a human handler is a trusted leader, and a horse will learn to look to a human handler for safety and security. There is controversy over various techniques. Some training methods advocate putting only slight pressure on the horse, allowing it to gradually become accustomed to a frightening object, while other methods sometimes advocate techniques that are based on the
operant conditioning Operant conditioning, also called instrumental conditioning, is a learning process where behaviors are modified through the association of stimuli with reinforcement or punishment. In it, operants—behaviors that affect one's environment—are c ...
principle of
flooding A flood is an overflow of water ( or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrolog ...
, for example, waving a large blanket on and over a horse tied to a sturdy post so that it cannot escape -- the latter methods often being quicker at first, but also far more dangerous because rapid exposure to frightening stimuli can cause a horse to panic, and, if tied or confined, to risk injury to the animal or handler in an attempt to free itself.


See also

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Horse behavior Horse behavior is best understood from the view that horses are prey animals with a well-developed fight-or-flight response. Their first reaction to a threat is often to flee, although sometimes they stand their ground and defend themselves or ...
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Horse training Horse training refers to a variety of practices that teach horses to perform certain behaviors when commanded to do so by humans. Horses are trained to be manageable by humans for everyday care as well as for equestrian activities from horse ra ...
Horse training