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Topic:Cognitive Science
Cognitive science in horses explores the mental processes and behaviors associated with perception, learning, memory, and decision-making in equine species. This field examines how horses process information, solve problems, and interact with their environment and other beings. Research in equine cognition involves studying various aspects such as sensory perception, social learning, and communication. The findings contribute to understanding the cognitive abilities of horses and inform training, management, and welfare practices. This page compiles peer-reviewed research studies and scholarly articles that investigate the cognitive processes and capabilities of horses, offering insights into their mental functioning and behavior.
Cross-modal individual recognition in domestic horses (Equus caballus). Individual recognition is considered a complex process and, although it is believed to be widespread across animal taxa, the cognitive mechanisms underlying this ability are poorly understood. An essential feature of individual recognition in humans is that it is cross-modal, allowing the matching of current sensory cues to identity with stored information about that specific individual from other modalities. Here, we use a cross-modal expectancy violation paradigm to provide a clear and systematic demonstration of cross-modal individual recognition in a nonhuman animal: the domestic horse. Su...
Walk-run classification of symmetrical gaits in the horse: a multidimensional approach. Walking and running are two mechanisms for minimizing energy expenditure during terrestrial locomotion. Duty factor, dimensionless speed, existence of an aerial phase, percentage recovery (PR) or phase shift of mechanical energy and shape of the vertical ground reaction force profile have been used to discriminate between walking and running. Although these criteria work well for the classification of most quadrupedal gaits, they result in conflicting evidence for some gaits, such as the tölt (a symmetrical, four-beat gait used by Icelandic horses). We use established pattern recognition meth...
Horse sense: social status of horses (Equus caballus) affects their likelihood of copying other horses’ behavior. Animals that live in stable social groups need to gather information on their own relative position in the group's social hierarchy, by either directly threatening or by challenging others, or indirectly and in a less perilous manner , by observing interactions among others. Indirect inference of dominance relationships has previously been reported from primates, rats, birds, and fish. Here, we show that domestic horses, Equus caballus, are similarly capable of social cognition. Taking advantage of a specific "following behavior" that horses show towards humans in a riding arena, we investigat...
Bias at the racetrack: effects of individual expertise and task importance on predecision reevaluation of alternatives. These studies were designed to test cognitive dissonance theory's assertion that alternatives are not reevaluated before a choice. Participants viewed information about horses in a simulated race and rated each one's chance of winning three times before placing their bet and once after placing it. It was found that ratings of the chosen horse increased within the predecision period as well as after betting. Predecision bolstering occurred even when participants did not expect to bet, and predecision preference increased with task importance and participant expertise. The findings are attribute...
Horse-race model simulations of the stop-signal procedure. In the stop-signal paradigm, subjects perform a standard two-choice reaction task in which, occasionally and unpredictably, a stop-signal is presented requiring the inhibition of the response to the choice signal. The stop-signal paradigm has been successfully applied to assess the ability to inhibit under a wide range of experimental conditions and in various populations. The current study presents a set of evidence-based guidelines for using the stop-signal paradigm. The evidence was derived from a series of simulations aimed at (a) examining the effects of experimental design features on in...
[Basic principles of hormone replacement therapy in the postmenopause]. 17 beta-estradiol, conjugated equine estrogens, esterified estrogens, and estriol constitute postmenopausal replacement therapy, all of which are in clinical use as oral preparations. Non-oral routes--matrix and reservoir patches, gel--were developed for estradiol, as was the intravaginal administration of estriol and estradiol. Daily doses of 1 mg estradiol(valerate) or 25 micrograms estradiol delivered via a patch or 0.5 mg gel or 0.3 mg conjugated equine estrogens are often sufficient to alleviate climacteric symptoms. Bone resorption may be effectively reduced and bone mineral density main...
Monitoring the conformational flexibility of cytochrome c at low ionic strength by 1H-NMR spectroscopy. Horse heart cytochrome c at pH 7 and low ionic strength is present as two conformers, as evidenced by 1H-NMR spectroscopy. The two structures have been calculated using NOE and pseudocontact shift constraints. They have the same folding patterns and are essentially equal, within the rmsd of the families. The two average structures have rmsd values of 0.049 nm and 0.093 nm for the backbone and the heavy atoms, respectively. Such a difference has been analyzed through a detailed analysis of the NOEs. It appears that the species at low ionic strength differs from the species present at high ionic...
Discrimination learning and concept formation in the Arabian horse. Discrimination learning and concept formation abilities were investigated in four mature Arabian horses. A series of two-choice discrimination problems were presented on stimulus panels that could open to allow access to food bowls. Selection of the correct stimulus resulted in food reinforcement, and an incorrect choice was not rewarded. The positions of the correct and incorrect stimuli were varied randomly during each test session, and the criterion for learning each problem was 85% correct for two consecutive sessions of 30 or 40 trials. Testing progressed through six discrimination proble...
