Sunday, January 25, 2015

Risk

Many people will mix up a hazard with risk. A hazard is “any source of potential damage, harm or adverse health effects on something or someone under certain conditions at work.” Whereas a risk is the “chance or probability that a person will be harmed or experience an adverse health effect if exposed to a hazard.”
Although there is a definition for risk, there is a difference between how much risk we think we are exposed to and how much risk we are actually in. This is called the risk perception gap. This also expresses that in risk situations our body takes over with the “flight or fight response.” The Amygdala, part of the brain, is in charge of this response in the body. The flight or fight response is the activation of two systems: the sympathetic nervous system and the adrenal-cortical system.
Heuristic like the flight or fight response is a judgment taken very quickly.  They are different because heuristic is “a mental shortcut that allows people to solve problems and make judgments quickly and efficiently.” It is a form of strategies to shorten decision making time and allow people to make these decisions without having to stop for long periods of time to think about their next action. Although this system sounds amazing, it can also lead to errors because it makes it difficult to see new ideas or alternative solutions.
We use these strategies numerous times in our everyday lives, examples of these are: whether or not to trust someone or how to respond to someone if they start to yell at you. Another example would be, you are driving down the road and you look in the road ahead and there is a bunch of glass in your lane. Without a second thought you quickly put your turn signal on and change lanes as to avoid the glass up ahead. Your intuition would tell you that staying in your lane and driving on the glass could be potentially dangerous, so you decided to change lanes and avoid the danger. During this moment you do not stop to assess the situation or calculate the probability of the glass popping your tires. You use a heuristic move to make the decision quickly.
There are three types of heuristics: availability, representativeness, and base-rate heuristic. The availability heuristic “is a mental shortcut that helps us make a decision based on how easy it is to bring something to mind.” Representativeness heuristic “is a mental shortcut that helps us make a decision by comparing information to our mental prototypes.” Finally, base-rate heuristic is “a mental shortcut that helps us make a decision based on probability.”
Risk perception for the body of population shows some general trends. Such as, perceiving a higher threat of risk towards human made risks versus natural risks. An example of this would be some industrialized chemicals, against a snowstorm even though the effects of the storm could cause more risk to human health because of exposure.  Another common trend is that people have a diluted risk perception when it comes to imposed risks versus voluntary risks. When a risk is imposed it makes the person feel trapped which escalates the perception of the risk.


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