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In animals, tonic immobility can be a last resort when fighting or fleeing have not worked, as many animals will not eat something that is dead. Help someone hide: In some situations, being very still may keep a person safe from danger, or cause an attacker to lose interest.Those who froze had a better understanding of what they saw in low-quality or poorly defined images, and processed threat-relevant information faster. The researchers tested people’s reactions to shock and how this affected their ability to understand visual information. Increase visual perception: A 2015 study argues that freezing is associated with a better perception of one’s surroundings.In animal studies, scientists have observed that freezing enables animals to continue scanning the environment in order to decide what to do next. In experiments where participants had more time to prepare to take action, a period of freezing was more common.
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Prepare someone for action: A 2017 review suggests that freezing may function as a time for the brain to decide how to respond to the threat.While freezing might seem like a counterintuitive way to respond to danger, it serves a purpose, just as fight or flight does. a drop in heart rate, rather than an increase.Research from 2015 describes it as “attentive immobility.” While the person who is “frozen” is extremely alert, they are also unable to move or take action against the danger. The freeze response involves a different physiological process than fight or flight.
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It can also trigger asthma attacks in people with the condition. A severe fight or flight response can become a panic attack.
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