The researchers found that intense signs of fear, such as trembling, were significantly more likely to be seen in the presence of sounds characterized as high frequency intermittent (HFI), such as smoke detector beeps.īehaviors associated with arousal, agitation, and excitement-barking, lunging-were more commonly seen in the presence of low frequency constant (LFC) sound sources, such as vacuum cleaners, although behavioral signs of fear-lip licking, ears tucked back-were also seen with LFC sounds. Automated vacuum cleaners (e.g., Roomba).Smoke detector chirps due to dead or low batteries.Grigg and her team found that owners not only underestimated their dogs' fearfulness, but that most people viewing the videos responded with amusement rather than concern over their dog’s welfare. Grigg and her team surveyed 386 dog owners about their dogs’ responses and examined 62 online videos to record dogs’ behaviors when exposed to household sounds-as well as their owners’ reactions while watching these videos of their dogs’ behaviors. Lead author Emma Grigg, MA, PhD, CAAB, a research associate and lecturer at the UC Davis School of Veterinary Medicine, wanted to find out how dogs reacted to “common” household sounds, which were defined as sounds that occurred daily, as well as other sounds that dogs hear in their homes regularly, although not every day. But the UC Davis team says those studies focus on dramatic, infrequent sounds-fireworks, thunder, gunshots-that dogs don’t encounter on a daily basis. Previous studies report that as many as half of all dogs suffer from noise sensitivity. That’s among the findings of a recent study out of UC Davis that sheds new light on the sounds that trigger fearful behaviors in dogs. If a dog is acting anxious at home for no apparent reason and the smoke detector is chirping, you might want to change the batteries.
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